Lewiston, Idaho Weather Conditions

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Current Conditions

  • 66°
  • Clear
  • Wind: Variable 4 mph
  • Humidity: 52%
  • Visibility: 10.0 miles
  • Dew Point: 48°
  • Pressure: 29.93 in. -

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Next 12 Hours

8  am
11  am
2  pm
5  pm
8  pm
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
66°
79°
86°
86°
75°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Partly Cloudy
  • High: 90 °
  • Low: 61 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 77 °
  • Low: 55 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 77 °
  • Low: 54 °
  • Partly Cloudy
  • Monday
  • Clear
  • High: 79 °
  • Low: 55 °
  • Clear
  • Tuesday
  • Clear
  • High: 84 °
  • Low: 57 °
  • Clear

Forecast for Lewiston, Idaho

Updated: 8:00 AM PDT on August 29, 2014

  • Friday

    Clear in the morning, then partly cloudy. High of 90F. Winds from the NW at 5 to 15 mph.

  • Friday Night

    Partly cloudy. Low of 61F. Winds from the WNW at 10 to 15 mph.

  • Saturday

    Partly cloudy in the morning, then clear. High of 77F. Winds from the WNW at 10 to 15 mph.

  • Saturday Night

    Partly cloudy. Low of 55F. Winds from the WSW at 5 to 20 mph.

  • Sunday

    Partly cloudy. High of 77F. Winds from the West at 5 to 10 mph.

  • Sunday Night

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

  • Monday

    Clear. High of 79F. Winds from the West at 5 to 10 mph.

  • Monday Night

    Partly cloudy in the evening, then clear. Low of 55F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 84F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 57F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 81F. Winds from the WNW at 5 to 10 mph.

  • Wednesday Night

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

  • Thursday

    Clear. High of 82F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 50F. Winds less than 5 mph.

  • Friday

    Clear. High of 81F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 52F. Winds less than 5 mph.

  • Saturday

    Clear with a chance of rain. High of 79F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday Night

    Partly cloudy with a chance of a thunderstorm. Low of 52F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday

    Partly cloudy. High of 81F. Winds less than 5 mph.

  • Sunday Night

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

  • Monday

    Clear. High of 77F. Winds less than 5 mph.

  • Monday Night

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

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Normal Hill Weather Station, Lewiston, ID

Updated: 9:02 AM PDT

Temperature: 66.2 °F Dew Point: 28 °F Humidity: 23% Wind: Calm Pressure: 29.09 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Nick's Weather Station, Lewiston, ID

Updated: 9:02 AM PDT

Temperature: 68.0 °F Dew Point: 50 °F Humidity: 52% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: - Graphs

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

Updated: 9:02 AM PDT

Temperature: 63.3 °F Dew Point: 48 °F Humidity: 58% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Clarkston Heights, Clarkston, WA

Updated: 9:02 AM PDT

Temperature: 65.3 °F Dew Point: 49 °F Humidity: 55% Wind: SE at 3.3 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Lapwai-ID, Lapwai, ID

Updated: 8:50 AM PDT

Temperature: 64.0 °F Dew Point: - Humidity: 55% Wind: North at - Pressure: 28.78 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: ITD Cottonwood ID US, Juliaetta, ID

Updated: 8:14 AM PDT

Temperature: 61 °F Dew Point: 48 °F Humidity: 63% Wind: SSW at 2 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: - Graphs

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

Updated: 7:10 AM PDT

Temperature: 61 °F Dew Point: 42 °F Humidity: 50% Wind: ENE at 5 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: ITD Shirrod Hill ID US, Genesee, ID

Updated: 8:15 AM PDT

Temperature: 63 °F Dew Point: 43 °F Humidity: 47% Wind: North at 5 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Town of Colton, Colton, WA

Updated: 8:59 AM PDT

Temperature: 67.6 °F Dew Point: 40 °F Humidity: 37% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: - Graphs

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

Updated: 6:02 AM HST

Temperature: 67.7 °F Dew Point: 44 °F Humidity: 43% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Westview, Moscow, ID

Updated: 8:54 AM PDT

Temperature: 68.7 °F Dew Point: 46 °F Humidity: 45% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Lamb Road, Troy, ID

Updated: 7:36 AM PDT

Temperature: 62.1 °F Dew Point: 48 °F Humidity: 59% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Montgomery Ridge Road, Anatone, WA

Updated: 8:58 AM PDT

Temperature: 71.5 °F Dew Point: 42 °F Humidity: 35% Wind: SSE at 6.3 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Reubens-ID, Reubens, ID

Updated: 8:50 AM PDT

Temperature: 61.9 °F Dew Point: - Humidity: 48% Wind: North at - Pressure: 26.39 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Camas Prairie, Reubens, ID

Updated: 9:02 AM PDT

Temperature: 70.3 °F Dew Point: 44 °F Humidity: 38% Wind: ENE at 4.6 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: ITD Winchester ID US,

Updated: 2:44 PM GMT

Temperature: 48 °F Dew Point: 45 °F Humidity: 87% Wind: SW at 2 mph 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 
420 am PDT Friday Aug 29 2014 


Synopsis... 
the Labor Day weekend will be cooler than normal with locally 
breezy conditions over portions of central and eastern 
Washington. With the exception of some isolated mountain showers, 
the majority of the inland northwest will remain dry through the 
weekend. A continuation of the cool weather pattern is expected 
through next week. The best chance for showers and thunderstorms 
will probably occur in the Wednesday or Thursday time frame. 


&& 


Discussion... 
today through Saturday night: the weather will turn cooler, breezy 
with mountain showers across the inland northwest as the weather 
pattern evolves from a Flat Ridge to into an upper level trough. 
Today will start the onset of the cooling with the arrival of a 
cold front which will push across eastern Washington this 
afternoon and reaching north Idaho by evening. Most of the 
moisture will be in the mid to upper levels, which will lead to 
little if any precipitation except for the mountains. The best 
chance of showers will be the Cascade crest. The frontal band 
weakens as it pushes east with spotty mountains showers in 
northeast Washington and north Idaho. Instability is lacking with 
the weakening front and will keep the mention of thunder for 
today. Winds will kick up behind the front from the Lee side 
valleys into the Columbia Basin with speeds of 15 to 25 mph. 
Temperatures will cool a few degrees with readings near seasonal 
normals. Winds and chance of showers decrease this evening as a 
drier pushes in from the west and skies clear. 500mb heights 
continue to fall into Saturday as an upper trough digs over the 
region as a shortwave rolls through the flow by Saturday afternoon 
and evening. Expect another chance of showers primarily for the 
mountains. Instability will be the highest near the Canadian 
border where the cold pool will reside. Will keep the mention of 
thunderstorms across the north during Saturday afternoon and 
evening. Westerly winds will kick up again especially in the Lee 
side valleys into the Columbia Basin. More cooling expected with 
widespread 70s across the low lands. /Rfox. 


Sunday through thursday: cooler than average temperatures will be 
the rule next week under a persistent longwave trough over the 
Pacific northwest. The medium range models are in good agreement 
that a large 500mb ridge will be anchored over the southeastern 
and south central U.S. Bringing hotter than average temperatures 
to portions of the country that received very little heat much of 
the Summer. The prevailing mid-level flow pattern Sunday through 
Tuesday is expected to be northwesterly which is generally a dry 
pattern this time of year. The models are progging a progressive 
shortwave in the northwest flow on Monday which may bring enough 
moisture with it for mountain showers with the best shot of rain 
along the Cascade crest. At most, light rain amounts are expected 
given the lack of deep layer instability. 


There is reasonably good agreement that the trough will buckle 
Tuesday night into Wednesday bringing a reinforcing shot of 
cooler air into the region. It also appears that an upper level 
cold pool will set up over northern Washington and the far north 
Idaho Panhandle on Wednesday suggesting the potential for widely 
scattered showers and thunderstorms. At this time the best 
combination of lift and instability looks to be over northeast 
Washington and far north Idaho...away from the Cascade burn scars. 
/Gkoch 


&& 


Aviation... 
12z tafs: an upper level warm front will keep high clouds over the 
region this morning, then a mid level cold front will slide across 
the taf sites by afternoon. Expect west to southwest winds to 
increase late this afternoon and early evening with local gusts to 
25 mph. Clouds and winds will decrease overnight. /Rfox. 


&& 


Preliminary point temps/pops... 
Spokane 81 53 73 48 71 50 / 0 10 10 10 10 10 
Coeur D'Alene 81 52 72 45 70 47 / 0 10 10 10 10 10 
Pullman 81 50 72 43 72 45 / 0 10 10 10 10 10 
Lewiston 88 60 78 53 77 54 / 0 10 10 10 10 10 
Colville 82 46 76 43 74 45 / 10 10 10 20 10 10 
Sandpoint 78 51 70 39 68 44 / 0 10 20 20 10 20 
Kellogg 77 52 68 47 66 49 / 0 10 10 20 20 20 
Moses Lake 84 50 79 47 78 51 / 0 0 0 0 0 0 
Wenatchee 82 56 77 56 78 56 / 0 10 0 10 0 0 
Omak 82 52 77 50 76 50 / 10 10 10 10 10 10 


&& 


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


$$ 



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