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.

Clear

46°F

8°C

Humidity 65%
Wind Speed S 5 MPH
Barometer 29.59 in (1002.03 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 24 Dec 09:30 AM PST
Extended Forecast for

Kooskia ID

  • Today

    Today: A 30 percent chance of rain, mainly after 5pm. Mostly cloudy, with a high near 52. East southeast wind 3 to 5 mph.

    High: 52 °F

    Chance Rain

  • Tonight

    Tonight: A 50 percent chance of rain after 3am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 38. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance Rain
    and Patchy
    Fog

  • Christmas Day

    Christmas Day: A 40 percent chance of rain. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 50. Calm wind.

    High: 50 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 37. Light south southeast wind. Chance of precipitation is 60%.

    Low: 37 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 46. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Rain

  • Friday Night

    Friday Night: Rain before 8pm, then rain, possibly mixed with snow. Snow level 3500 feet lowering to 2200 feet. Low around 32. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow

  • Saturday

    Saturday: A 40 percent chance of snow before 11am. Mostly cloudy, with a high near 39. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday Night

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

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Today
A 30 percent chance of rain, mainly after 5pm. Mostly cloudy, with a high near 52. East southeast wind 3 to 5 mph.
Tonight
A 50 percent chance of rain after 3am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 38. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Christmas Day
A 40 percent chance of rain. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 50. Calm wind.
Thursday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 37. Light south southeast wind. Chance of precipitation is 60%.
Friday
Rain. High near 46. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain before 8pm, then rain, possibly mixed with snow. Snow level 3500 feet lowering to 2200 feet. Low around 32. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
A 40 percent chance of snow before 11am. Mostly cloudy, with a high near 39. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kooskia ID
 46.16°N 115.98°W (Elev. 1896 ft)
Last Update:
1:02 am MST Dec 24, 2025
Forecast Valid:
11am MST Dec 24, 2025-6pm MST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation