Lewiston, Idaho Weather Conditions

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Current Conditions

  • 52°
  • Clear
  • Wind: SSW 5 mph
  • Humidity: 86%
  • Visibility: 9.0 miles
  • Dew Point: 48°
  • Pressure: 29.76 in. +

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Next 12 Hours

5  am
8  am
11  am
2  pm
5  pm
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Rain
Rain
55°
57°
57°
64°
55°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Rain
  • High: 64 °
  • Low: 46 °
  • Rain
  • Saturday
  • Rain Showers
  • High: 52 °
  • Low: 39 °
  • Rain Showers
  • Sunday
  • Partly Cloudy
  • High: 54 °
  • Low: 37 °
  • Partly Cloudy
  • Monday
  • Chance of Rain
  • High: 57 °
  • Low: 45 °
  • Chance of Rain
  • Tuesday
  • Chance of Rain
  • High: 59 °
  • Low: 45 °
  • Chance of Rain

Forecast for Lewiston, Idaho

Updated: 2:00 AM PDT on October 31, 2014

  • Friday

    Overcast with a chance of rain, then rain in the afternoon. High of 64F. Winds from the SSW at 5 to 10 mph. Chance of rain 60%.

  • Friday Night

    Overcast with rain. Low of 46F. Winds from the NW at 5 to 10 mph. Chance of rain 80%.

  • Saturday

    Overcast with rain showers. High of 52F. Winds from the WNW at 5 to 10 mph. Chance of rain 80%.

  • Saturday Night

    Partly cloudy with a chance of rain. Low of 39F. Winds from the WSW at 5 to 10 mph. Chance of rain 40%.

  • Sunday

    Partly cloudy. High of 54F. Winds less than 5 mph.

  • Sunday Night

    Clear in the evening, then partly cloudy. Low of 37F. Winds less than 5 mph.

  • Monday

    Overcast with a chance of rain in the afternoon. High of 57F. Winds less than 5 mph. Chance of rain 20%.

  • Monday Night

    Overcast with a chance of rain. Low of 45F. Winds from the SSE at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Tuesday

    Mostly cloudy with a chance of rain. High of 59F. Winds from the SSE at 5 to 10 mph. Chance of rain 60%.

  • Tuesday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 45F. Winds from the SSE at 5 to 10 mph. Chance of rain 50%.

  • Wednesday

    Overcast with a chance of rain. High of 61F. Winds from the South at 5 to 10 mph. Chance of rain 30%.

  • Wednesday Night

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

  • Thursday

    Mostly cloudy. High of 64F. Winds from the SSW at 5 to 20 mph.

  • Thursday Night

    Partly cloudy. Low of 43F. Winds from the WSW at 5 to 10 mph.

  • Friday

    Clear. High of 57F. Winds from the WSW at 10 to 15 mph.

  • Friday Night

    Partly cloudy. Low of 41F. Winds less than 5 mph.

  • Saturday

    Clear. High of 54F. Winds less than 5 mph.

  • Saturday Night

    Partly cloudy with a chance of rain. Low of 36F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday

    Mostly cloudy with a chance of rain. High of 54F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday Night

    Mostly cloudy. Low of 37F. Winds less than 5 mph.

  • Monday

    Partly cloudy. High of 55F. Winds less than 5 mph.

  • Monday Night

    Clear. Fog overnight. Low of 37F. Winds from the South at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Normal Hill Weather Station, Lewiston, ID

Updated: 4:10 AM PDT

Temperature: 52.2 °F Dew Point: 40 °F Humidity: 63% Wind: Calm Pressure: 31.01 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Nick's Weather Station, Lewiston, ID

Updated: 4:10 AM PDT

Temperature: 53.6 °F Dew Point: 48 °F Humidity: 82% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Windchill: - Graphs

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

Updated: 4:10 AM PDT

Temperature: 49.8 °F Dew Point: 46 °F Humidity: 88% Wind: Calm Pressure: 29.70 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Clarkston Heights, Clarkston, WA

Updated: 4:10 AM PDT

Temperature: 51.9 °F Dew Point: 47 °F Humidity: 83% Wind: WNW at 6.7 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Windchill: - Graphs

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

Updated: 2:15 AM PDT

Temperature: 55 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Town of Colton, Colton, WA

Updated: 4:09 AM PDT

Temperature: 46.7 °F Dew Point: 45 °F Humidity: 93% Wind: Calm Pressure: 29.68 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Wawawai -Baker Ranch -South Rim, Colton, WA

Updated: 1:10 AM HST

Temperature: 47.6 °F Dew Point: 46 °F Humidity: 95% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Westview, Moscow, ID

Updated: 3:58 AM PDT

Temperature: 46.8 °F Dew Point: 45 °F Humidity: 94% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Lamb Road, Troy, ID

Updated: 4:06 AM PDT

Temperature: 46.8 °F Dew Point: 45 °F Humidity: 94% Wind: West at 6.0 mph Pressure: 29.73 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: RAWS MISSION CREEK ID US, Winchester, ID

Updated: 3:03 AM PDT

Temperature: 54 °F Dew Point: 38 °F Humidity: 55% Wind: NW at 4 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Montgomery Ridge Road, Anatone, WA

Updated: 4:10 AM PDT

Temperature: 46.8 °F Dew Point: 40 °F Humidity: 77% Wind: NW at 1.1 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Reubens-ID, Reubens, ID

Updated: 3:50 AM PDT

Temperature: 51.8 °F Dew Point: - Humidity: 58% Wind: North at - Pressure: 26.16 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Camas Prairie, Reubens, ID

Updated: 4:10 AM PDT

Temperature: 48.2 °F Dew Point: 41 °F Humidity: 77% Wind: West at 6.9 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

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

Updated: 2:45 AM PDT

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

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Spokane Washington 
246 am PDT Friday Oct 31 2014 


Synopsis... 
a slow moving frontal system will pass through the region over 
the next 24 hours. Rain against the Cascades this morning will 
expand east through the day and into tonight. Rain in the Idaho 
Panhandle will likely linger into Sunday morning. Mild and 
unsettled weather is expected to continue into next week. 


&& 


Discussion... 


Today and tonight: no big changes to the fcst as the slow-moving 
north-south frontal boundary currently along the Cascades moves 
east the next 24 hours. Hourly pcpn rates have been around 3-6 
hundredths most sites as a long rich fetch of moisture accompanies 
the front. Of immediate concern is the embedded short-wave now 
over west/cntrl Oregon that will track quickly NE along the frontal/baroclinic 
zone as it crosses into the upper Columbia Basin this morning. It 
will be this wave, along with the speed Max digging south along 
the back side of the trough, that will define the splitting nature 
of the frontal boundary and upper trough by late Fri/early Sat. As 
a result of these two features, we'll see two rounds of pcpn... 
the first today with the short- wave trough lifting NE across ern 
WA, and the second tonight over southeast WA and the cntrl ID Panhandle 
as what's left of the front stalls. Halloween pcpn amnts will be 
tricky, especially for Spokane which will be close to the point at 
which the front splits... between the heaviest rains over nrn WA 
today, and the heaviest pcpn threat for tonight over southeast WA. Right 
now, we're certain that pcpn will fall late afternoon into early 
evening, but it doesn't look like amnts will be more than a tenth 
for Spokane. Stay tuned...bz 


Saturday through sunday: the Idaho Panhandle and extreme eastern fringes 
of Washington can expect wet weather to continue on Saturday as a 
trowal airstream interacts with a departing moist frontal boundary 
along the Idaho/Montana border. Models have been consistent with the idea 
of a deepening low to our southeast and band of moderate to heavy 
precipitation on its western flank but there remains some 
uncertainty how far west this southwest to northeast band of pcpn 
will expand into into ern Washington and far northern reaches of the Idaho 
Panhandle. We are not looking at a huge difference in area, 
roughly a County or two but this will mean a difference in dry or 
wet conditions for locations like Pomeroy...Spokane...Newport...toward 
Bonners Ferry. By far, the wettest conditions will be found in the 
Idaho Panhandle from the I-90 corridor southward and into the blue 
mtns with northwest flow enhancing rainfall amounts in the blue 
mtns and Camas Prairie. Snow levels will range from 6500-7000 feet 
during periods of heaviest precipitation then lower near 4500 feet 
early Sunday morning as precipitation begins to taper off. 
Consequently, we are not anticipated any major travel impacts from 
snow on Lookout Pass. Away from the wet weather over Idaho, dry 
conditions will be common in the Cascades and most of central and 
eastern Washington for much of the weekend. The next storm system will 
spread high clouds late Sunday with rain returning into the 
Cascades by Sunday night. 


Sunday night through friday: an atmospheric river becomes aimed 
at the northwestern US bringing several rounds of precipitation, 
gusty winds, and mild temperatures. Shortwaves tracking along a 
150kt jet oriented roughly from 40n/150w to SW British Columbia 
will waver the fire hose north and south at times but overall, its 
gonna be another wet period. The initial onslaught of 
precipitation will arrive starting Sunday night and continue 
through through Tuesday night. Warm moist isentropic ascent 
spreads into the Cascades Sunday night then east across much of 
ern Washington and nrn Idaho through the day on Monday. A cool front presses 
through Tuesday but has no dynamic support aloft and will mainly 
act to temporarily shut off rain in the Lee of the Cascades as 
midlevel flow becomes more westerly but will have opposite results 
in in the Idaho Panhandle and far eastern reaches of Washington where 
precipitation will likely increase. 


The front and accompanying westerly flow will shove The Tongue 
of moisture into northern Oregon Tuesday night with drier 
conditions continue to expand east across the Columbia Basin. The 
Cascade crest and Idaho Panhandle mtns will not see much of this 
break in shower activity as southwest winds keep the orographic 
shower machine in full effect. A deeper trof will swing east of 
the dateline and buckle the baroclinic region back toward the 
north ahead of a developing warm front. Look for stable rains to 
spread back into much of Washington/Idaho with the heaviest amounts 
continuing to focus along the northern and eastern mountains. The 
trof swings inland Thursday and looks to finally bring an end to 
the fire hose. Models are in decent agreement with the overall 
picture but illustrate vast differences with the strength of the 
trof, degree of splitting, and resultant strength/timing of a cold 
front Thursday afternoon. The GFS is amongst the most compact, 
least splitting models and not only Ushers a strong very windy 
cold front through Thursday but the trof also takes on a strong 
negative tilt and could bring some thunder. The European model (ecmwf) splits the 
energy before reaching the coast and although the reflection of 
the surface low in Alberta is similar, height rises along the 
coast are not to the same degree (due to a secondary low off the 
Oregon/California coast) which supports an increase in winds but near the 
windy scenario depicted on the GFS. We anticipate several more 
variations in the models before we get to the event but it is 
something Worth keeping an eye on; especially if wind is of any 
concern. As for snow levels, the lowest levels of this period will 
be Monday morning with the onset of precipitation. Snow will be 
possible down to 3900 feet across mountains Washington/Idaho but these levels 
will rise through the day and climb above most peaks and all 
mountain passes by afternoon. Snow levels waver some but generally 
remain near 6000 feet or higher until the trof passage late 
Thursday/Friday. /Sb 


&& 


Aviation... 
06z tafs: light rain will continue at keat through Friday morning. 
Conditions will very widely at keat the next 12 hours from VFR to 
IFR and back. Precipitation and a lower deck will make it to kmwh 
by 17z but conditions are expected to remain VFR. Further to the 
east the remainder of the taf sites will not see precipitation 
begin until aft 20z Friday...again with lowering decks but 
conditions mainly VFR. 


&& 


Preliminary point temps/pops... 
Spokane 56 42 48 34 48 35 / 50 60 20 10 10 10 
Coeur D'Alene 58 43 46 34 47 34 / 50 70 70 40 10 10 
Pullman 59 42 46 36 48 37 / 30 80 70 30 10 10 
Lewiston 65 46 48 39 53 38 / 20 80 80 40 10 10 
Colville 55 41 50 32 48 35 / 90 60 10 10 0 10 
Sandpoint 57 41 47 35 46 32 / 50 70 70 40 10 10 
Kellogg 59 41 45 35 44 32 / 20 70 100 60 30 10 
Moses Lake 55 41 54 34 53 38 / 90 20 10 0 0 10 
Wenatchee 55 39 55 37 54 40 / 100 10 0 0 10 20 
Omak 52 37 51 33 51 38 / 90 20 10 10 10 10 


&& 


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


$$ 








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