Lewiston, Idaho Weather Conditions

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Current Conditions

  • 47°
  • Overcast
  • Wind: SW 7 mph
  • Humidity: 63%
  • Visibility: 10.0 miles
  • Dew Point: 35°
  • Pressure: 30.07 in. 0

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Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
43°
41°
45°
45°
45°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Partly Cloudy
  • High: 46 °
  • Low: 32 °
  • Partly Cloudy
  • Tuesday
  • Mostly Cloudy
  • High: 46 °
  • Low: 37 °
  • Mostly Cloudy
  • Wednesday
  • Rain
  • High: 43 °
  • Low: 32 °
  • Rain
  • Thursday
  • Chance of Snow
  • High: 36 °
  • Low: 28 °
  • Chance of Snow
  • Friday
  • Partly Cloudy
  • High: 36 °
  • Low: 34 °
  • Partly Cloudy

Forecast for Lewiston, Idaho

Updated: 7:00 AM PST on December 22, 2014

  • Monday

    Partly cloudy. High of 46F. Winds from the West at 10 to 15 mph.

  • Monday Night

    Partly cloudy. Fog overnight. Low of 32F. Winds less than 5 mph.

  • Tuesday

    Mostly cloudy. High of 46F. Winds from the SE at 5 to 10 mph.

  • Tuesday Night

    Overcast with a chance of rain, then rain after midnight. Low of 37F. Winds from the SSE at 5 to 10 mph. Chance of rain 60%.

  • Wednesday

    Overcast with rain. High of 43F. Winds from the SSW at 5 to 15 mph. Chance of rain 80%.

  • Wednesday Night

    Overcast with a chance of rain, then a chance of snow and rain showers after midnight. Low of 32F. Winds from the SSW at 5 to 10 mph shifting to the West after midnight. Chance of precipitation 70% with accumulations up to 1 in. possible.

  • Thursday

    Overcast with a chance of snow and rain showers. High of 36F. Winds from the West at 10 to 15 mph. Chance of snow 20%.

  • Thursday Night

    Partly cloudy in the evening, then overcast. Low of 28F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 36F. Winds less than 5 mph.

  • Friday Night

    Overcast with a chance of rain. Low of 34F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Saturday

    Mostly cloudy with a chance of snow. High of 41F. Winds from the South at 5 to 10 mph. Chance of snow 60%.

  • Saturday Night

    Overcast with a chance of rain. Low of 32F. Winds less than 5 mph. Chance of rain 50%.

  • Sunday

    Mostly cloudy with a chance of snow. High of 39F. Winds from the WNW at 5 to 10 mph. Chance of snow 40%.

  • Sunday Night

    Partly cloudy. Low of 27F. Winds less than 5 mph.

  • Monday

    Clear. High of 34F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 19F. Winds less than 5 mph.

  • Tuesday

    Partly cloudy. High of 30F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy. Low of 23F. Winds less than 5 mph.

  • Wednesday

    Mostly cloudy. High of 34F. Winds less than 5 mph.

  • Wednesday Night

    Mostly cloudy with a chance of snow. Fog overnight. Low of 21F. Winds less than 5 mph. Chance of snow 20%.

  • Thursday

    Partly cloudy with a chance of snow. High of 34F. Winds less than 5 mph. Chance of snow 40%.

  • Thursday Night

    Clear. Low of 21F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Record Report  Statement as of 04:25 PM PST on December 21, 2014


... Record high temperature set at Lewiston ID Airport...

a record high temperature of 60 degrees was set at Lewiston ID
Airport today.
This ties the old record of 60 set in 1972. Records have been kept
at this location since 1881.




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Hepton Lane, Lewiston, ID

Updated: 5:24 AM PST

Temperature: 46.4 °F Dew Point: 34 °F Humidity: 62% Wind: Calm Pressure: 29.32 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Normal Hill Weather Station, Lewiston, ID

Updated: 5:25 AM PST

Temperature: 48.7 °F Dew Point: 19 °F Humidity: 30% Wind: WSW at 3.6 mph Pressure: 17.72 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Nick's Weather Station, Lewiston, ID

Updated: 5:09 AM PST

Temperature: 48.1 °F Dew Point: 36 °F Humidity: 63% Wind: ESE at 2.5 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Harvest Vista/Pheasant Trail Estates @ Schaub Ranch, Lewiston, ID

Updated: 5:25 AM PST

Temperature: 45.5 °F Dew Point: 36 °F Humidity: 70% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Dan and Judy's, Clarkston, WA

Updated: 5:16 AM PST

Temperature: 45.0 °F Dew Point: 36 °F Humidity: 71% Wind: West at 5.1 mph Pressure: 29.96 in Hourly Precipitation: - Windchill: 42 °F Graphs

Location: Clarkston Heights, Clarkston, WA

Updated: 5:25 AM PST

Temperature: 44.7 °F Dew Point: 36 °F Humidity: 70% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Clarkston Heights - Florence Lane, Clarkston, WA

Updated: 5:21 AM PST

Temperature: 48.0 °F Dew Point: 39 °F Humidity: 70% Wind: WSW at 3.1 mph Pressure: 29.96 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Lapwai-ID, Lapwai, ID

Updated: 4:50 AM PST

Temperature: 52.2 °F Dew Point: - Humidity: 63% Wind: North at - Pressure: 28.84 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: HADS ALPOWA CREEK AT MOUTH NEAR CLARK WA US WADOECO, Clarkston, WA

Updated: 4:15 AM PST

Temperature: 48 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: ITD Cottonwood ID US, Juliaetta, ID

Updated: 4:30 AM PST

Temperature: 50 °F Dew Point: 38 °F Humidity: 62% Wind: SSE at 4 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: MesoWest Alpowa Summit WA US WA DOT, Pomeroy, WA

Updated: 4:10 AM PST

Temperature: 42 °F Dew Point: 33 °F Humidity: 70% Wind: SW at 18 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: ITD Shirrod Hill ID US, Genesee, ID

Updated: 4:29 AM PST

Temperature: 39 °F Dew Point: 35 °F Humidity: 84% Wind: West at 13 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Town of Colton, Colton, WA

Updated: 5:25 AM PST

Temperature: 39.9 °F Dew Point: 35 °F Humidity: 83% Wind: West at 5.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Moose Draw, Troy, ID

Updated: 5:18 AM PST

Temperature: 36.7 °F Dew Point: 35 °F Humidity: 94% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Westview, Moscow, ID

Updated: 5:12 AM PST

Temperature: 38.9 °F Dew Point: 37 °F Humidity: 93% Wind: WSW at 5.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Eid Rd, foot of Paradise Ridge, Moscow, ID

Updated: 5:25 AM PST

Temperature: 37.4 °F Dew Point: 37 °F Humidity: 97% Wind: WSW at 11.4 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Lamb Road, Troy, ID

Updated: 5:22 AM PST

Temperature: 38.6 °F Dew Point: 37 °F Humidity: 93% Wind: West at 11.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: RAWS MISSION CREEK ID US, Winchester, ID

Updated: 5:03 AM PST

Temperature: 40 °F Dew Point: 30 °F Humidity: 66% Wind: WNW at 10 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Montgomery Ridge Road, Anatone, WA

Updated: 5:23 AM PST

Temperature: 37.8 °F Dew Point: 33 °F Humidity: 83% Wind: WSW at 13.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Reubens-ID, Reubens, ID

Updated: 4:50 AM PST

Temperature: 38.8 °F Dew Point: - Humidity: 70% Wind: North at - Pressure: 26.36 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Camas Prairie, Reubens, ID

Updated: 5:25 AM PST

Temperature: 37.7 °F Dew Point: 33 °F Humidity: 82% Wind: West at 9.2 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: ITD Winchester ID US,

Updated: 12:30 PM GMT

Temperature: 38 °F Dew Point: 30 °F Humidity: 73% Wind: East at 2 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: HADS SOLDIERS MEADOW RESERVOIR AND DA ID US USBR, Winchester, ID

Updated: 4:45 AM PST

Temperature: 37 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Spokane Washington 
349 am PST Monday Dec 22 2014 


Synopsis... 
expect dry conditions and cooler but still above normal 
temperatures today and tonight. Light mountain snow and valley 
rain or snow will return late Tuesday. An organized storm system 
will impact the region around Christmas eve. This will bring the 
potential for moderate to heavy snow in the mountains and light 
accumulations to the valleys. 


&& 


Discussion... 
today through Tuesday...high pressure will build off the coast 
today then move through the region on Tuesday. This will result 
in a quiet period in the forecast compared to the weekend and what 
is expected by the middle of the week. 


We have lost the deep moisture tap but with northwest flow there 
will still be the possibility of rain and snow showers for the 
central Idaho Panhandle southward today...then those come to an 
end overnight. The upper level flow is in a good position for the 
Puget Sound convergence to set up. This is sending bands or small 
rivers of moisture across the Cascade crest and slopping over into 
the east slopes. Radar and satellite imagery show that these bands 
are quite transient both north and south. As such I chose to just 
cover the entire crest with higher pops. Some of this moisture may 
make it into the valleys of the lower east slopes at times through 
the day, resulting in a short burst of rain and or snow. Otherwise 
the forecast will be dry and cooler. High pressure...light winds 
and a moist boundary layer will likely set the stage for fog and 
stratus development tonight and into Tuesday morning. 


By late Tuesday morning the leading edge of moisture from the next 
upstream weather system will begin to move into the Cascades. This 
will result in increasing chance of precipitation for the 
Cascades...then pushing across the northern mountains near the 
Canadian border through the afternoon. Precipitation amounts will 
remain on the light side during this period. Snow levels will drop 
to near the valley floors across the northern zones by this 
time...and the valleys may pick up a dusting of snow with an inch 
or two possible near the crest of the Cascades. Tobin 


Tuesday night through Friday...the Flat Ridge and westerly flow 
will be replaced by an upper trough passage that will bring 
mountain snow and a mix of rain and snow for the valleys during 
the busy Holiday travel period. There is good model agreement 
among the latest European model (ecmwf)/NAM/sref solutions in a warm front Tuesday 
night into Wednesday followed by the upper trough passage and 
falling snow levels late Wednesday into Christmas day. The GFS 
remains the outlier with slower timing of the trough passage and a 
more northerly track of the main area of precipitation. The 
forecast will trend toward the European model (ecmwf)/NAM/sref consensus. 
Confidence is above average for the precipitation event as a fetch 
of deep Pacific moisture is directed into the northern tier of 
counties Tuesday night then sags south across the inland northwest 
for Christmas eve and Christmas morning. The type of precipitation 
in the valleys and the amount of accumulating snow comes with a 
lower confidence level due to changing snow levels and also the 
possibility of areas of low level convergence forming as the 
trough moves across the forecast area Wednesday night. Snow levels 
will start off low in the north Tuesday night with light valley 
snow possible but then surge to 4-6k ft during the heaviest 
precipitation before crashing back near valley floors Wednesday 
night. Christmas day the region will be in unstable northwest flow 
which will be favorable upslope for the southeast zones but by 
then the moisture tap will be lost and precip will be more showery 
in nature. Snow showers will continue to diminish Friday as the 
trough dynamics exit to the southeast. Isolated snow showers will 
linger across the Camas Prairie and Shoshone County with little 
additional accumulations. 


I like the format of the previous discussion so I am borrowing it. 


..moderate threat for snow to impact mountain passes Wednesday... 


* snow: most mountain locations will receive some snow. The 
heaviest mountain snow will be along the Cascade crest and Idaho 
Panhandle where 6-12 inches will be possible. Confidence 
increases with elevation as snow levels will be in flux. The 
high peaks will see all snow while the mid slopes and valleys 
will see a mix of rain/snow as snow levels initially rise 
Tuesday night with the arrival of the warm front and southerly 
winds. The transition to snow will take place late on Christmas 
eve as the upper trough moves overhead and winds shift to the 
northwest. The rain/snow line will sag south overnight. A few 
inches of snow will be possible in the valleys of northeast Washington 
and north Idaho but confidence in exact amounts is low at this time 
due to uncertainty with the timing of changing snow levels. 2-4 
inches will be possible in the blue mtns, Camas Prairie, and 
Idaho Palouse Wednesday night into Christmas morning following 
the transition from rain to snow. Confidence is moderate for at 
least an inch but lower for additional accumulations as it is 
difficult to pin down the timing of the changeover. Best chances 
for any accumulations will be above 2000 feet and east of a line 
from Republic to Pomeroy but this also carries low confidence 
since lowest snow levels will occur as precip ends. 


* Mountain passes: snow is likely to impact mountain passes along 
I- 90, Hwy 2, and Hwy 20 starting Tuesday night and continue 
through Wednesday. 


Snoqualmie: will start off as rain Tuesday evening but should switch 
to snow by early Wednesday morning. Amounts could be light to 
moderate. 


Stevens pass: will be a mix of wet snow and rain Tuesday evening but 
should quickly switch over to snow overnight and remain snow on 
Wednesday. Amounts could be moderate. 


Lookout pass: will start off as snow Tuesday night, may briefly mix 
with rain or become heavy wet snow overnight, then become all snow 
for Wednesday. Amounts could be heavy. 


Sherman pass: snow Tuesday night into Wednesday morning then 
tapering off through the day. Light to moderate accumulations. 


* Confidence levels: large changes are possible with the storm if 
model trends switch toward the GFS. Consequently, confidence is 
moderate to low. Confidence is moderate to high for significant 
mountain snow, and low accumulations for valleys. If model 
trends go toward the GFS, winds will be stronger, the 
precipitation will be slower to traverse the region, and snow 
levels will be higher. (Sb)/kelch 


Friday night through Monday night: this period will involve one 
or more cold weather systems affecting the inland northwest. These 
weather disturbances will help create a larger trough across the 
region, allowing chilly air to funnel south. Any precipitation 
that falls will fall as snow due to the cold air, but the flow 
pattern should keep moisture on the limited side. The trough 
doesn't stick around for long, with a ridge of high pressure 
trying to push the trough east by midweek. TY 


&& 


Aviation... 
12z tafs: northwest winds over the Cascades has created a 
convergence zone with bands of precipitation slopping over into 
the east slopes this morning. This may result in short periods of 
-shra at keat through 15-17z...showers should be brief but could 
be intense...otherwise VFR conditions at keat. High pressure 
building into the region has resulted in drying through the 
lower atmosphere and will inhibit stratus formation this morning 
for the taf sites. As such expect VFR conditions through roughly 
06z. After 06z the inversion will strengthen and fog/stratus 
formation will be possible at kgeg/ksff/kcoe with possible 
ivr/LIFR cigs. Moisture ahead of the next incoming Pacific storm 
system will begin to lower the cigs at keat/kmwh after 06z with 
VFR cigs bkn-ovc100. Tobin 


&& 


Preliminary point temps/pops... 
Spokane 41 29 40 33 37 26 / 0 0 20 60 80 40 
Coeur D'Alene 40 29 40 33 37 26 / 10 0 20 70 80 50 
Pullman 43 29 43 34 40 29 / 0 0 10 30 80 70 
Lewiston 47 33 45 37 43 32 / 10 0 10 20 80 70 
Colville 38 27 36 31 34 25 / 0 10 30 70 50 20 
Sandpoint 38 28 36 32 35 27 / 10 10 20 80 80 40 
Kellogg 38 27 36 33 35 29 / 40 0 20 80 90 70 
Moses Lake 45 31 42 34 40 28 / 0 0 10 20 60 20 
Wenatchee 44 34 42 34 39 29 / 0 0 20 20 50 10 
Omak 38 28 36 29 34 25 / 0 0 30 40 30 10 


&& 


Otx watches/warnings/advisories... 
Idaho...none. 
Washington...none. 
&& 


$$ 



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