Lewiston, Idaho Weather Conditions

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Current Conditions

  • 75°
  • Clear
  • Wind: North 4 mph
  • Humidity: 41%
  • Visibility: 10.0 miles
  • Dew Point: 50°
  • Pressure: 29.78 in. +

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Next 12 Hours

8  am
11  am
2  pm
5  pm
8  pm
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
74°
88°
99°
103°
96°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Partly Cloudy
  • High: 105 °
  • Low: 70 °
  • Partly Cloudy
  • Sunday
  • Clear
  • High: 100 °
  • Low: 65 °
  • Clear
  • Monday
  • Clear
  • High: 100 °
  • Low: 69 °
  • Clear
  • Tuesday
  • Clear
  • High: 103 °
  • Low: 70 °
  • Clear
  • Wednesday
  • Clear
  • High: 104 °
  • Low: 71 °
  • Clear

Forecast for Lewiston, Idaho

Updated: 2:55 am PDT on July 4, 2015

Near record high temperatures from today through tonight...
  • Today

    Hot...sunny. Highs 95 to 102. West wind 5 to 15 mph in the afternoon. Gusts up to 25 mph.

  • Tonight

    Clear. Lows in the 60s. Northwest wind 5 to 15 mph in the evening...becoming light.

  • Sunday

    Sunny. Highs in the 90s.

  • Sunday Night

    Clear. Lows in the upper 50s to lower 60s.

  • Monday

    Sunny. Highs in the 90s.

  • Monday Night through Thursday

    Mostly clear. Lows in the 60s. Highs in the 90s.

  • Thursday Night and Friday

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the 60s. Highs in the upper 80s to mid 90s.

Severe Weather Alert Descriptions

 Record Report  Statement as of 1:17 am PDT on July 4, 2015


... Temperature records set across the inland northwest...

The high temperature at Ephrata in the past 24 hours
was 105 degrees. This sets the record for the highest temperature
for this date. The previous record of 103 degrees was set in 1968.

The low temperature at Ephrata in the past 24 hours
was 77 degrees. This sets the record for the warmest low temperature
for this date. The previous record of 75 degrees was set in 2008.

Records have been kept at this site since 1948.

The high temperature at Omak in the past 24 hours was 104 degrees.
This sets the record for the highest temperature for this date. The
previous record of 103 degrees was set in 1942.

The low temperature at Omak in the past 24 hours was 69 degrees.
This sets the record for the warmest low temperature for this date.
The previous record of 65 degrees was set in 2004.

Records have been kept at this site since 1931.

The low temperature at Mullan Pass in the past 24 hours was 65
degrees. This sets the record for the warmest low temperature for
this date. The previous record of 63 degrees was set in 1942.

Records have been kept at this site since 1938.

The high temperature at Pullman in the past 24 hours
was 97 degrees. This sets the record for the highest temperature
for this date. The previous record of 93 degrees was set in 2008.

Records have been kept at this site since 1940.



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Hepton Lane, Lewiston, ID

Updated: 8:15 AM PDT

Temperature: 77.2 °F Dew Point: 50 °F Humidity: 38% Wind: NW at 2.7 mph Pressure: 29.11 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Nick's Weather Station, Lewiston, ID

Updated: 7:09 AM PDT

Temperature: 69.7 °F Dew Point: 51 °F Humidity: 52% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Downtown Clarkston 8TH ST, Clarkston, WA

Updated: 8:02 AM PDT

Temperature: 73.8 °F Dew Point: 52 °F Humidity: 46% Wind: East at 1.1 mph Pressure: 29.66 in Hourly Precipitation: - Heat Index: 77 °F Graphs

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

Updated: 8:16 AM PDT

Temperature: 76.1 °F Dew Point: 54 °F Humidity: 46% Wind: Calm Pressure: 29.67 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Clarkston Golf & Country Club, Clarkston, WA

Updated: 8:06 AM PDT

Temperature: 76.8 °F Dew Point: 53 °F Humidity: 44% Wind: WNW at 1.7 mph Pressure: 29.81 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Clarkston Heights-Charnita Dr., Clarkston, WA

Updated: 8:10 AM PDT

Temperature: 86.9 °F Dew Point: 59 °F Humidity: 39% Wind: SW at 1.6 mph Pressure: 29.79 in Hourly Precipitation: - Heat Index: 86 °F Graphs

Location: Dan and Judy's, Clarkston, WA

Updated: 8:16 AM PDT

Temperature: 83.3 °F Dew Point: 54 °F Humidity: 36% Wind: NNE at 3.7 mph Pressure: 28.58 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Linda Vista Street, Clarkston, WA

Updated: 8:11 AM PDT

Temperature: 75.7 °F Dew Point: 57 °F Humidity: 51% Wind: North at - Pressure: 29.86 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Clarkston Heights Dove Drive, Clarkston, WA

Updated: 8:16 AM PDT

Temperature: 75.9 °F Dew Point: 54 °F Humidity: 46% Wind: ESE at 1.5 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Owen Mounce Ranch, Lewiston, ID

Updated: 8:07 AM PDT

Temperature: 82.5 °F Dew Point: 46 °F Humidity: 28% Wind: Calm Pressure: 29.55 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Town of Colton, Colton, WA

Updated: 8:14 AM PDT

Temperature: 76.0 °F Dew Point: 51 °F Humidity: 42% Wind: Calm Pressure: 29.71 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Moose Draw, Troy, ID

Updated: 8:07 AM PDT

Temperature: 78.2 °F Dew Point: 53 °F Humidity: 42% Wind: East at 1.0 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: APRSWXNET, Moscow, ID

Updated: 7:53 AM PDT

Temperature: 75 °F Dew Point: 52 °F Humidity: 45% Wind: Calm Pressure: 29.64 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

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

Updated: 8:16 AM PDT

Temperature: 74.7 °F Dew Point: 52 °F Humidity: 45% Wind: WSW at 1.3 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Montgomery Ridge Road, Anatone, WA

Updated: 8:15 AM PDT

Temperature: 79.6 °F Dew Point: 46 °F Humidity: 31% Wind: SSE at 5.4 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Camas Prairie, Reubens, ID

Updated: 8:16 AM PDT

Temperature: 76.6 °F Dew Point: 48 °F Humidity: 37% Wind: ENE at 4.6 mph Pressure: 29.70 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Spokane Washington 
427 am PDT Sat Jul 4 2015 


Synopsis.... 
hot and dry weather will be featured for the Independence day 
weekend. Today winds will shift to the north and increase as a 
front sags in from Canada. Breezy conditions continue on Sunday. 
It is still looking dry and warm into the beginning of next week. 






&& 


Discussion... 
today through Sunday...a dry cold front will sag south across the 
inland northwest later today, bringing increasing northerly winds 
to the Okanogan Valley late this morning that will spill out into 
the Waterville Plateau and western Columbia Basin by around noon. 
Winds will continue to increase during the afternoon and early 
evening hours with sustained winds of 15 to 25 mph and gusts to 35 
mph. This will combine with very low relative humidity to produce 
critical fire weather conditions. The red flag warning remains in 
effect for these areas, fwz673, 684 and 687, through 10 PM. The 
northeast Washington fire districts will see lighter winds during peak 
daytime heating (and minimum rh) so the decision was made to not 
expand the warning to fwz686. It will still be hot and dry, but 
winds will be less of a concern. There will be almost no 
precipitation with this front so temperatures will remain hot. 
Expect readings a few degrees cooler than friday's numbers, which 
will still be well above seasonal normals. 


As the front pivots through the forecast area tonight, the focus 
will shift to northeast Washington and the northern Panhandle of 
Idaho. There may even be an isolated thunderstorm or two for the 
northern Panhandle mountains early Sunday morning but confidence 
is low. The winds continue to be the main concern. Northeast winds 
will be channeled down the Purcell Trench into the West Plains. 
Fortunately, the winds will be increasing during the overnight 
hours while relative humidity is recovering. There is a low 
probability of critical winds and low relative humidity for Sunday afternoon but 
for now it looks like rhs will recover a bit behind the front as 
slightly cooler air arrives from the north. Temperatures will cool 
a bit with some of the northern valley locations in the 80s. We 
will continue to re-evaluate expected fire weather conditions with 
the next forecast package. /Kelch 


Sunday night through Saturday...the models are in decent agreement 
handling the current weather pattern(s). Deep low pressure 
centers anchor the end points in the Gulf of Alaska and in the 
vicinity of Hudson Bay. In between high pressure will build in the 
eastern Pacific. This will put the inland northwest in a northwest 
to northerly flow through about Wednesday, depending on what model 
you like. A weather disturbance moving through the northerly flow 
will clip the northeast zones Tuesday and Tuesday night. Behind 
that disturbance high pressure will build back into the pac northwest 
through Thursday in response to the Gulf of Alaska low moving into 
the eastern Pacific. By Friday night/Saturday the models are 
hinting that the Gulf of Alaska low will move into position just 
off the coast. 


Sunday night to Monday night expect a slight rebound of the 
temperatures and a continued dry forecast gusty winds from Sunday 
will decrease and remain out of the northwest. 


Tuesday and Tuesday night...increased moisture with the aforementioned 
short wave will tap into both surface based and mid level 
instability and result in a chance for showers and thunderstorms. 
These storms will be focused along the northeast Washington 
mountains and the north Idaho Panhandle. The convection should be 
isolated at best, but any lightning after this extended period of 
dry weather will result in potential fire starts. The remainder of 
the region will remain dry with temperatures 8-12 degrees above 
normal. Another thing we will need to keep an eye on will be 
increased winds down the Okanogan Valley Tuesday. At this time it 
doesn't look like a strong front but winds will be on the 
increase. 


Wednesday and Thursday another transient ridge axis will track 
across the area for a period of very warm and dry conditions. 


Friday and Saturday things may get interesting. All of the model 
guidance is indicating the upper low will move to just off the 
Washington coast in some form or other. This is the a very good 
pattern east of the Cascades for a convective outbreak as 
southerly flow will tap into fairly deep sub-tropical moisture. If 
this pattern verifies there will be a chance for thunderstorms 
both Friday ad Saturday. Thunderstorms possibly starting off high 
in the atmosphere for virga, little precipitation, and gusty 
outflow winds on Friday and Friday night...then becoming much 
wetter Saturday. Tobin 


&& 


Aviation... 
12z tafs: a dry airmass will allow for VFR conditions at all taf 
sites. Winds at keat will remain occasionally breezy through 
this afternoon. Elevated smoke layers from area wildfires will 
appear as thin mid level clouds but surface visibility will not be 
affected. Northerly winds will pick up aft 00z along the Canadian 
border and push south through the evening hours towards kgeg kcoe 
and kmwh. /Ek 




&& 


Preliminary point temps/pops... 
Spokane 98 67 89 61 91 67 / 0 10 10 0 0 0 
Coeur D'Alene 95 62 85 57 89 61 / 0 10 10 0 0 0 
Pullman 94 59 89 53 90 56 / 0 0 10 0 0 0 
Lewiston 103 71 98 65 98 68 / 0 0 0 0 0 0 
Colville 100 61 92 57 94 62 / 0 10 10 0 0 10 
Sandpoint 94 54 83 49 88 54 / 0 10 10 0 0 10 
Kellogg 94 61 83 52 88 57 / 0 10 10 0 0 0 
Moses Lake 102 71 97 66 98 68 / 0 0 0 0 0 0 
Wenatchee 103 75 98 72 99 72 / 0 0 0 0 0 0 
Omak 100 66 96 63 97 65 / 0 0 0 0 0 10 


&& 


Otx watches/warnings/advisories... 
Idaho...none. 
Washington...red flag warning from noon today to 10 PM PDT this evening for 
East Washington northern Columbia Basin (zone 673)-East 
Washington Okanogan Highlands (zone 687)-East Washington 
Okanogan/Methow valleys (zone 684). 


&& 


$$ 



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