Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Grangeville - Idaho County Airport (KGIC)

Lat: 45.94111°NLon: 116.13257°WElev: 3287.0ft.

Overcast

23°F

-5°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 23°F (-5°C)
Visibility 0.25 mi
Last update 20 Jan 02:35 AM PST
Extended Forecast for

Grangeville ID

Air Stagnation Advisory January 20, 04:20am until January 20, 05:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 20, 04:20am until January 20, 05:00pm

    NOW until 5:00pm Tue

    Air Stagnation Advisory

  • Today

    High: 40 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. Light and variable wind.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 35. Light and variable wind.

    High: 35 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 40. Calm wind.
Tonight
Mostly clear, with a low around 21. Calm wind.
Wednesday
Mostly sunny, with a high near 37. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 22. Calm wind.
Thursday
Partly sunny, with a high near 35. Light and variable wind.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 32.
Friday Night
Mostly clear, with a low around 18.
Saturday
Mostly sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
A slight chance of snow. Partly sunny, with a high near 39.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 28.
Monday
A chance of rain and snow. Snow level rising to 3900 feet in the afternoon. Mostly cloudy, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
Grangeville ID
 45.95°N 116.12°W (Elev. 3301 ft)
2:06 am MST Jan 20, 2026
4am MST Jan 20, 2026-6pm MST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database