National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Grangeville - Idaho County Airport (KGIC)

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

Clear

37°F

3°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.72 in (1006.44 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 25 Dec 09:55 PM PST
Extended Forecast for

Grangeville ID

Winter Weather Advisory December 26, 05:00pm until December 27, 11:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A chance of rain before midnight, then rain likely after 2am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 35. South southwest wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 35 °F

    Rain Likely
    and Patchy
    Fog

  • Friday

    Friday: Rain, possibly mixed with snow. Snow level 4700 feet lowering to 3500 feet in the afternoon . High near 42. Windy, with a south southwest wind 8 to 13 mph becoming south southwest 23 to 33 mph in the morning. Winds could gust as high as 39 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow and
    Windy

  • Friday Night

    Friday Night: Snow, possibly mixed with rain, becoming all snow after 11pm. Patchy blowing snow after 11pm. Low around 27. Breezy, with a southwest wind around 26 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Saturday

    Saturday: Snow, mainly before 11am. Patchy blowing snow before 2pm. High near 31. Breezy, with a west southwest wind 13 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 31 °F

    Snow and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 15. West northwest wind around 6 mph becoming calm in the evening.

    Low: 15 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of rain before midnight, then rain likely after 2am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 35. South southwest wind 6 to 8 mph. Chance of precipitation is 60%.
Friday
Rain, possibly mixed with snow. Snow level 4700 feet lowering to 3500 feet in the afternoon . High near 42. Windy, with a south southwest wind 8 to 13 mph becoming south southwest 23 to 33 mph in the morning. Winds could gust as high as 39 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday Night
Snow, possibly mixed with rain, becoming all snow after 11pm. Patchy blowing snow after 11pm. Low around 27. Breezy, with a southwest wind around 26 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday
Snow, mainly before 11am. Patchy blowing snow before 2pm. High near 31. Breezy, with a west southwest wind 13 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
Partly cloudy, with a low around 15. West northwest wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Partly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Mostly cloudy, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
A slight chance of rain and snow. Snow level 4800 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 31.
New Year's Day
A chance of rain and snow. Snow level 3500 feet rising to 4100 feet in the afternoon. Mostly cloudy, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grangeville ID
 45.95°N 116.12°W (Elev. 3301 ft)
Last Update:
1:01 pm MST Dec 25, 2025
Forecast Valid:
11pm MST Dec 25, 2025-6pm MST Jan 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation