Lewiston, Idaho Weather Conditions

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Current Conditions

  • 54°
  • Clear
  • Wind: Calm
  • Humidity: 66%
  • Visibility: 10.0 miles
  • Dew Point: 43°
  • Pressure: 29.91 in. +

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Next 12 Hours

7  am
10  am
1  pm
4  pm
7  pm
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
56°
67°
76°
81°
77°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Clear
  • High: 83 °
  • Low: 58 °
  • Clear
  • Wednesday
  • Overcast
  • High: 70 °
  • Low: 50 °
  • Overcast
  • Thursday
  • Clear
  • High: 70 °
  • Low: 46 °
  • Clear
  • Friday
  • Clear
  • High: 72 °
  • Low: 50 °
  • Clear
  • Saturday
  • Chance of Rain
  • High: 70 °
  • Low: 50 °
  • Chance of Rain

Forecast for Lewiston, Idaho

Updated: 2:58 am PDT on September 1, 2015

  • Today

    Partly cloudy in the morning...becoming sunny. Patchy smoke. Highs in the upper 70s to lower 80s.

  • Tonight

    Mostly clear in the evening...becoming mostly cloudy. Patchy smoke through the night. A chance of rain showers overnight. Lows in the lower to mid 50s. West wind 5 to 15 mph. Chance of precipitation 20 percent.

  • Wednesday

    Mostly cloudy. Patchy smoke. A chance of rain showers. Highs in the upper 60s to lower 70s. West wind 5 to 15 mph in the afternoon. Chance of precipitation 20 percent.

  • Wednesday Night

    Mostly cloudy. A 20 percent chance of rain showers in the evening. Patchy smoke through the night. Lows in the mid to upper 40s.

  • Thursday

    Partly cloudy. Patchy smoke through the day. A 20 percent chance of rain showers in the afternoon. Highs in the mid 60s to lower 70s.

  • Thursday Night

    Partly cloudy with a 20 percent chance of rain showers. Patchy smoke. Lows in the mid to upper 40s.

  • Friday through Saturday Night

    Mostly cloudy with a chance of showers and thunderstorms. Highs in the mid 60s to lower 70s. Lows in the mid 40s to mid 50s. Chance of precipitation 40 percent.

  • Sunday and Sunday Night

    Partly cloudy with a 20 percent chance of rain showers. Highs in the mid 60s to lower 70s. Lows in the upper 40s to lower 50s.

  • Labor Day

    Warmer...sunny. Highs in the 70s.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: 9th Avenue, Lewiston, ID

Updated: 6:55 AM PDT

Temperature: 55.9 °F Dew Point: 44 °F Humidity: 64% Wind: North at - Pressure: 29.79 in Hourly Precipitation: - Windchill: - Graphs

Location: Hepton Lane, Lewiston, ID

Updated: 7:05 AM PDT

Temperature: 54.7 °F Dew Point: 47 °F Humidity: 74% Wind: ESE at 5.1 mph Pressure: 29.20 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Nick's Weather Station, Lewiston, ID

Updated: 7:05 AM PDT

Temperature: 53.3 °F Dew Point: 44 °F Humidity: 72% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Downtown Clarkston 8TH ST, Clarkston, WA

Updated: 6:55 AM PDT

Temperature: 52.3 °F Dew Point: 46 °F Humidity: 79% Wind: Calm Pressure: 29.76 in Hourly Precipitation: - Windchill: - Graphs

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

Updated: 7:05 AM PDT

Temperature: 54.2 °F Dew Point: 46 °F Humidity: 75% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Clarkston Golf & Country Club, Clarkston, WA

Updated: 6:57 AM PDT

Temperature: 51.6 °F Dew Point: 45 °F Humidity: 78% Wind: SE at 1.7 mph Pressure: 29.98 in Hourly Precipitation: - Windchill: - Graphs

Location: Dan and Judy's, Clarkston, WA

Updated: 7:05 AM PDT

Temperature: 54.1 °F Dew Point: 44 °F Humidity: 70% Wind: West at 5.3 mph Pressure: 28.68 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Linda Vista Street, Clarkston, WA

Updated: 6:55 AM PDT

Temperature: 52.7 °F Dew Point: 44 °F Humidity: 72% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Windchill: - Graphs

Location: Clarkston Heights Dove Drive, Clarkston, WA

Updated: 7:05 AM PDT

Temperature: 55.0 °F Dew Point: 44 °F Humidity: 67% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Owen Mounce Ranch, Lewiston, ID

Updated: 6:59 AM PDT

Temperature: 56.8 °F Dew Point: 44 °F Humidity: 63% Wind: ESE at 8.0 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Town of Colton, Colton, WA

Updated: 7:05 AM PDT

Temperature: 49.8 °F Dew Point: 42 °F Humidity: 74% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Moose Draw, Troy, ID

Updated: 7:02 AM PDT

Temperature: 45.2 °F Dew Point: 42 °F Humidity: 89% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: APRSWXNET, Moscow, ID

Updated: 6:49 AM PDT

Temperature: 52 °F Dew Point: 44 °F Humidity: 74% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Windchill: - Graphs

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

Updated: 7:05 AM PDT

Temperature: 54.9 °F Dew Point: 46 °F Humidity: 72% Wind: West at 6.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Lamb Road, Troy, ID

Updated: 7:04 AM PDT

Temperature: 49.3 °F Dew Point: 42 °F Humidity: 75% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Montgomery Ridge Road, Anatone, WA

Updated: 7:03 AM PDT

Temperature: 55.6 °F Dew Point: 40 °F Humidity: 57% Wind: SW at 8.3 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Camas Prairie, Reubens, ID

Updated: 7:05 AM PDT

Temperature: 46.3 °F Dew Point: 41 °F Humidity: 82% Wind: SW at 2.3 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Spokane Washington 
428 am PDT Tuesday Sep 1 2015 


Synopsis... 
today will feature dry and breezy conditions. A weak cold front 
brings a reinforcing shot of cooler air Wednesday along with a 
chance for showers and gusty winds. A cooler and showery weather 
pattern will linger over the region late week and into the 
weekend. 


&& 


Discussion... 


Today through Wednesday...long-wave trof pattern continues to 
influence this portion of the forecast and beyond. Shortwaves 
nested towards the center and the edges rotate around and brush 
the forecast area with forcing and moisture maximizing along 
the Cascade crest and near the northern Canadian border today 
and tonight. A somewhat stronger frontal feature sweeps through 
Wednesday with enough intensity and speed to place higher pops 
in place for those same locations noted earlier and in addition 
include a good portion of the north Idaho Panhandle. Southwest 
winds should prevail with such a scenario allowing breezy 
conditions here and there today with slightly more gusts 
Wednesday. Forecast temps with such a trof in place should remain 
on the cool side of normal for this time of year. /Pelatti 


Thursday through Saturday...model agreement is decent and 
consistent over previous runs during this period. Wednesday's cold 
front will be the surface harbinger of a cool upper level closed 
low descending into the forecast area from Canada. In addition to 
continued unseasonably cool conditions...a showery transition 
season type pattern will envelop the region as the cool air in 
the center of this low produces instability each afternoon through 
Friday. Thursday the shower activity will likely be concentrated 
over the mountains around the basin as the upper low begins to 
move in...while on Friday just about any location in the forecast 
area will be subject to a hit-and-miss shower or brief 
thunderstorm with the cold pocket square over the region. Both the 
GFS and ec models develop a wrap around moisture band by early 
Saturday over southeastern Washington and the Idaho Panhandle. 


Winds during this period will be relatively light over most of 
the area but the Okanogan Valley and eventually the Purcell Trench 
will begin to funnel some drier Canadian Continental air into the 
basin...first noticeable on Friday in the Okanogan and Friday 
night/Saturday down the Purcell Trench. These terrain 
constrictions could produce breezy northerly winds Friday and 
Saturday. 


Sunday and Monday...models diverge during this period with the 
European model (ecmwf) much slower to eject the upper low to the east...implying a 
continued (but improving) unsettled and cool pattern...while the 
GFS aggressively moves the low out of the region and implies a 
well defined warming and drying trend. Confidence is low...but 
compared to previous runs the ec appears to have a more consistent 
idea of a slower ejection. Thus the far reaches of the forecast 
will maintain some chance of rain in the Idaho Panhandle with a 
more anemic warming trend than the GFS would suggest. /Fugazzi 






&& 


Aviation... 
12z tafs: light showers near the Cascade crest and the Canadian 
border will not impact taf sites. Some smoke from area fires may 
impact klws and kpuw this morning but not to the degree that 
occurred last week. Winds expected to be breezy during the 
afternoon and evening. /Pelatti 


&& 


Preliminary point temps/pops... 
Spokane 74 52 68 44 66 45 / 10 20 20 10 10 10 
Coeur D'Alene 74 52 67 43 65 41 / 10 20 20 10 20 20 
Pullman 76 50 68 42 66 40 / 0 20 30 10 10 10 
Lewiston 83 58 73 49 71 48 / 0 10 20 20 20 10 
Colville 74 50 70 40 68 40 / 10 20 30 10 20 30 
Sandpoint 72 48 66 40 65 37 / 10 20 20 10 20 20 
Kellogg 73 49 65 41 63 40 / 0 20 40 20 20 20 
Moses Lake 77 53 73 47 71 45 / 10 10 10 10 10 10 
Wenatchee 75 56 71 50 69 52 / 10 10 10 10 10 20 
Omak 75 49 72 43 68 45 / 20 20 20 10 30 30 


&& 


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


$$ 



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