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 >

Current conditions at

Grangeville - Idaho County Airport (KGIC)

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

Overcast

46°F

8°C

Humidity 75%
Wind Speed N 0 MPH
Barometer 29.61 in (1002.71 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 24 Dec 07:55 PM PST
Extended Forecast for

Grangeville ID

  • Tonight

    Tonight: Rain likely, mainly before 1am. Mostly cloudy, with a low around 35. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 35 °F

    Rain Likely
    then Chance
    Rain

  • Christmas Day

    Christmas Day: A 30 percent chance of rain, mainly after 3pm. Partly sunny, with a high near 47. Calm wind becoming south 5 to 8 mph in the morning.

    High: 47 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 36. South wind around 10 mph. Chance of precipitation is 60%.

    Low: 36 °F

    Rain Likely

  • Friday

    Friday: Rain before 8am, then rain and snow between 8am and 11am, then rain after 11am. Snow level 4400 feet lowering to 3800 feet in the afternoon . High near 44. South wind 8 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 44 °F

    Rain/Snow
    then Rain

  • Friday Night

    Friday Night: Rain and snow likely before 8pm, then snow. Low around 28. West southwest wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain/Snow
    then Snow

  • Saturday

    Saturday: Snow likely, mainly before 11am. Mostly cloudy, with a high near 33. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Snow Likely
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain likely, mainly before 1am. Mostly cloudy, with a low around 35. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Christmas Day
A 30 percent chance of rain, mainly after 3pm. Partly sunny, with a high near 47. Calm wind becoming south 5 to 8 mph in the morning.
Thursday Night
Rain likely. Mostly cloudy, with a low around 36. South wind around 10 mph. Chance of precipitation is 60%.
Friday
Rain before 8am, then rain and snow between 8am and 11am, then rain after 11am. Snow level 4400 feet lowering to 3800 feet in the afternoon . High near 44. South wind 8 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
Rain and snow likely before 8pm, then snow. Low around 28. West southwest wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 33. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 37.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Partly sunny, with a high near 42.
Tuesday Night
Partly cloudy, with a low around 28.
Wednesday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grangeville ID
 45.95°N 116.12°W (Elev. 3301 ft)
Last Update:
1:02 pm MST Dec 24, 2025
Forecast Valid:
9pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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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