Lewiston, Idaho Weather Conditions

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Current Conditions

  • 89°
  • Clear
  • Wind: WSW 8 mph
  • Humidity: 19%
  • Visibility: 10.0 miles
  • Dew Point: 42°
  • Pressure: 29.92 in. +

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Next 12 Hours

11  pm
2  am
5  am
8  am
11  am
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Chance of a Thunderstorm
Chance of T-storms
84°
73°
73°
75°
86°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Chance of a Thunderstorm
  • High: 104 °
  • Low: 70 °
  • Chance of T-Storms
  • Saturday
  • Chance of a Thunderstorm
  • High: 104 °
  • Low: 72 °
  • Chance of a Thunderstorm
  • Sunday
  • Clear
  • High: 102 °
  • Low: 68 °
  • Clear
  • Monday
  • Clear
  • High: 102 °
  • Low: 66 °
  • Clear
  • Tuesday
  • Partly Cloudy
  • High: 99 °
  • Low: 64 °
  • Partly Cloudy

Forecast for Lewiston, Idaho

Updated: 8:00 PM PDT on July 31, 2014

Heat advisory in effect until 8 PM PDT this evening...
  • Thursday

    Clear. High of 104F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy. Low of 72F. Winds less than 5 mph.

  • Friday

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the morning, then clear with a chance of a thunderstorm and a chance of rain. High of 104F. Winds less than 5 mph. Chance of rain 30%.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 70F. Winds less than 5 mph. Chance of rain 30%.

  • Saturday

    Clear with a chance of a thunderstorm and a chance of rain. High of 104F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday Night

    Clear with a chance of a thunderstorm and a chance of rain. Low of 72F. Winds from the WNW at 5 to 10 mph. Chance of rain 20%.

  • Sunday

    Clear with a chance of a thunderstorm in the morning, then partly cloudy with a chance of a thunderstorm. High of 102F. Winds from the NW at 5 to 10 mph.

  • Sunday Night

    Partly cloudy in the evening, then clear. Low of 68F. Winds less than 5 mph.

  • Monday

    Clear. High of 102F. Winds from the NW at 5 to 10 mph.

  • Monday Night

    Mostly cloudy. Low of 66F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 99F. Winds from the WNW at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 64F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 100F. Winds from the WNW at 5 to 10 mph.

  • Wednesday Night

    Clear. Low of 63F. Winds less than 5 mph.

  • Thursday

    Clear. High of 97F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 64F. Winds less than 5 mph.

  • Friday

    Clear. High of 88F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy. Low of 59F. Winds less than 5 mph.

  • Saturday

    Clear. High of 95F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 55F. Winds less than 5 mph.

  • Sunday

    Partly cloudy. High of 97F. Winds less than 5 mph.

  • Sunday Night

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

  • Monday

    Clear. High of 91F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Record Report  Statement as of 1:00 am PDT on July 31, 2014


... Record temperatures recorded across the region...

A record high temperature of 103 degrees was tied at Wenatchee WA
pangborn field today. This ties the old record of 103 set in 2003.

The low temperature at Wenatchee Airport in the past 24 hours was 73
degrees. This sets the record for the warmest low temperature for
this date. The previous record of 71 degrees was set in 1998.
Records have been kept at this site since 1959.

A record high temperature of 104 degrees was tied at Omak Airport
today. The previous occurrence of 105 was in 2003.

The high temperature at Mullan Pass in the past 24 hours
was 81 degrees. This sets the record for the highest temperature
for this date. The previous record of 77 degrees was set in 2005.

The low temperature at Mullan Pass in the past 24 hours
was 67 degrees. This sets the record for the warmest low temperature
for this date. The previous record of 61 degrees was set in 2005.
Records have been kept at this site since 1938.

The low temperature at Spokane Airport in the past 24 hours was 68
degrees. This ties the record for the warmest low temperature for
this date. The previous record of 68 degrees was set in 1930.
Records have been kept at this site site since 1881.

The high temperature at Colville in the past 24 hours ending at 600
PM was 104 degrees. This sets the record for the highest temperature
for this period. The previous record of 103 degrees was set in 1929.
Records have been kept at this site since 1899.

The high temperature at Lind in the past 24 hours ending at 430 PM
was 103 degrees. This ties the record for the highest temperature
for this period. The previous record of 103 degrees was set in 1971.
Records have been kept at this site since 1931.



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Vern Eide Motorcars, Lewiston, ID

Updated: 7:35 PM PDT

Temperature: 78.7 °F Dew Point: 48 °F Humidity: 34% Wind: Calm Pressure: 29.70 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Normal Hill Weather Station, Lewiston, ID

Updated: 10:43 PM PDT

Temperature: 85.6 °F Dew Point: 18 °F Humidity: 8% Wind: Calm Pressure: 29.06 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Nick's Weather Station, Lewiston, ID

Updated: 10:43 PM PDT

Temperature: 85.7 °F Dew Point: 46 °F Humidity: 25% Wind: ESE at 1.6 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

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

Updated: 10:43 PM PDT

Temperature: 80.7 °F Dew Point: 47 °F Humidity: 31% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Clarkston Heights, Clarkston, WA

Updated: 8:25 PM PDT

Temperature: 92.1 °F Dew Point: 50 °F Humidity: 24% Wind: WNW at 3.1 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

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

Updated: 8:15 PM PDT

Temperature: 94 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: ITD Cottonwood ID US, Juliaetta, ID

Updated: 9:45 PM PDT

Temperature: 85 °F Dew Point: 45 °F Humidity: 25% Wind: South at 3 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

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

Updated: 9:10 PM PDT

Temperature: 76 °F Dew Point: 46 °F Humidity: 34% Wind: SW at 7 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: ITD Shirrod Hill ID US, Genesee, ID

Updated: 9:45 PM PDT

Temperature: 78 °F Dew Point: 42 °F Humidity: 28% Wind: West at 10 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Town of Colton, Colton, WA

Updated: 10:39 PM PDT

Temperature: 65.6 °F Dew Point: 45 °F Humidity: 48% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 7:43 PM HST

Temperature: 83.9 °F Dew Point: 46 °F Humidity: 27% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Westview, Moscow, ID

Updated: 10:41 PM PDT

Temperature: 73.3 °F Dew Point: 47 °F Humidity: 39% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Lamb Road, Troy, ID

Updated: 10:40 PM PDT

Temperature: 77.1 °F Dew Point: 40 °F Humidity: 26% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: RAWS MISSION CREEK ID US, Winchester, ID

Updated: 10:03 PM PDT

Temperature: 80 °F Dew Point: 40 °F Humidity: 24% Wind: North at 3 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Montgomery Ridge Road, Anatone, WA

Updated: 10:42 PM PDT

Temperature: 71.6 °F Dew Point: 42 °F Humidity: 35% Wind: West at 2.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Camas Prairie, Reubens, ID

Updated: 10:43 PM PDT

Temperature: 73.0 °F Dew Point: 44 °F Humidity: 35% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: ITD Winchester ID US,

Updated: 4:44 AM GMT

Temperature: 72 °F Dew Point: 50 °F Humidity: 45% Wind: SSW at 2 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

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

Updated: 9:45 PM PDT

Temperature: 82 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated 
National Weather Service Spokane Washington 
1039 PM PDT Thursday Jul 31 2014 


Synopsis... 
it will be partly cloudy and hot with isolated thunderstorms 
through the end of the week and into the weekend. No significant 
relief from the hot weather is forecast through the seven-day 
forecast period. However, only a few spots may reach the 100-degree 
mark. Isolated thunderstorms the next several days are not 
expected to be strong or severe but could bring localized heavy 
downpours. 


&& 


Update... 
update this evening was to issue a Flash Flood Watch for late 
Friday morning through Friday evening for the Washington Cascades. 
Brief downpours from thunderstorms could produce flash flooding 
across areas that have experienced recent wildfires. 


&& 


Previous discussion... 
tonight through friday: the mid-level 
ridge axis shifts east and the southwest flow begins to carry 
disturbances more directly into the inland NW, increasing the 
threat of thunder for some areas. Tonight one disturbance moving 
across northeast or tracks by southeast Washington and the southern 
Panhandle of Idaho. Interacting with the SBCAPE around The Blues and 
Camas Prairie into southeast Shoshone County, this will lead to 
the continued threat of some showers/T-storms largely this 
evening. The threat wanes with the loss of daytime heating the 
SBCAPE. However, a second and deeper disturbance was coming into 
southwest or this afternoon. It is projected to move northeast 
toward southern Washington overnight into Friday morning, then into Washington 
during the day Friday. 


First overnight into Friday morning look for some increasing 
clouds. The brunt of the available instability and deeper 
moisture, however, appears to remain south of our forecast area 
until after about 2 or 3 am. So overnight the main shower/T-storm 
chances will be over The Blues and over southwest Chelan County 
Cascades. There is also concern that some activity may develop 
over the lower Columbia Basin overnight and creep into the upper 
Columbia Basin early Friday morning. However confidence is low and 
pops will remain around 10 percent here. 


Going into Friday afternoon the SBCAPE reinvigorates around the 
mountain zones and secondarily toward the southeast Washington/lower Idaho. 
This includes the Palouse. With the aforementioned disturbance 
lifting in, this will bring a broader shower/T-storm threat about 
the mountain zones and southeast Washington going into tomorrow afternoon. 
General precipitation amounts are expected to be light, meaning a 
concern for dry lightning and fire weather concerns. With these 
factors and ongoing wildfires near the Cascades, a Fire Weather 
Watch was issued for the Cascades and Okanogan Valley, Waterville 
Plateau and Wenatchee area. Temperatures will remain well above 
normal and relatively humidity values remain low. There could also 
be an increase in winds near the Cascades with the increased 
onshore flow and cross-Cascade pressure gradient. /J. Cote' 


Fri nt through sunday: following the exit of the thunder-producing 
short-wave trough into srn British Columbia Fri nt, Sat through Sunday will be 
under the influence of a very slow moving upper trough whose pcpn 
will be highly terrain and diurnally driven. Large-scale forcing 
for ascent won't be very impressive with the main vort Max moving 
into ern WA Sat nt, shearing and weakening as it does. However, 
there will be a chance of nocturnal (overnight) showers or 
isolated thunder both Fri nt and Sat nt. The afternoon thunder 
threats will be located mostly across the Idaho Panhandle and NE 
WA. Based on the cape/deep lyr shear combo, widespread strong 
thunderstorms are not expected. New fire starts will potentially be 
an issue though. Bz 


Sunday evening through Thursday...subtle deamplification of the 
persistent long-wave ridge that has remained in place for quite 
some time takes place during this interval. The other persistent 
features such as the offshore trof/Gulf of Alaska low pressure 
area an another trof/low pressure area over eastern Canada remain 
in place as well helping to "lock" our long-wave ridge in place. 
The ridge axis remains generally in Montana for most of the 
interval which means there could be some clutter/disturbances/moisture 
coming up from the south or southwest off the east Pacific which 
could affect our sensible weather in the form of clouds and/or 
some thunderstorm potential. /Pelatti 


&& 


Aviation... 
06z tafs: VFR conditions expected the next 24 hours. Cirrus is 
spreading in from the south and thickening. There is a slight 
chance of showers and thunderstorms aft 21z for klws, kpuw and 
keat. If any thunderstorms do develop near airports...strong gusty 
outflow winds will be possible. 


&& 


Preliminary point temps/pops... 
Spokane 66 95 66 92 66 92 / 10 10 10 20 20 10 
Coeur D'Alene 61 94 62 91 63 90 / 10 10 10 20 20 20 
Pullman 58 94 57 92 59 91 / 10 20 20 20 20 10 
Lewiston 71 100 69 97 71 97 / 10 30 30 20 20 10 
Colville 57 97 59 95 58 94 / 10 10 20 20 20 20 
Sandpoint 53 92 56 88 56 87 / 10 10 20 20 20 20 
Kellogg 59 90 62 88 62 86 / 10 20 20 30 20 20 
Moses Lake 66 99 64 97 65 97 / 10 20 20 20 20 10 
Wenatchee 71 97 71 96 71 97 / 10 20 20 20 20 10 
Omak 65 101 68 96 67 96 / 10 30 30 20 20 10 


&& 


Otx watches/warnings/advisories... 
Idaho...heat advisory until 8 PM PDT this evening for Lewiston area. 


Washington...Fire Weather Watch from Friday morning through Friday evening 
for East Washington central Cascade mountains (zone 682)- 
East Washington central Cascade valleys (zone 677)-East 
Washington north Cascades (zone 685)-East Washington 
northern Columbia Basin (zone 673)-East Washington 
Okanogan/Methow valleys (zone 684). 


Flash Flood Watch from Friday morning through Friday evening for 
east slopes northern Cascades-Okanogan Valley-Wenatchee 
area. 


Heat advisory until 8 PM PDT this evening for lower Garfield and 
Asotin counties. 


Fire Weather Watch from late tonight through Friday evening for 
East Washington south central Cascade mountains (zone 680)- 
East Washington south central Cascade valleys (zone 676). 


&& 



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