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

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

Grangeville - Idaho County Airport (KGIC)

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

Overcast

32°F

0°C

Humidity 100%
Wind Speed SSW 3 MPH
Barometer 29.7 in (1005.76 mb)
Dewpoint 32°F (0°C)
Visibility 0.25 mi
Last update 24 Dec 12:35 AM PST
Extended Forecast for

Kooskia ID

Dense Fog Advisory until December 24, 05:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until December 24, 05:00am

    NOW until 5:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly after 5pm. Mostly cloudy, with a high near 54. East wind 3 to 5 mph.

    High: 54 °F

    Partly Sunny
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain after 3am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 38. Light and variable 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. Mostly cloudy, with a high near 52. Calm wind.

    High: 52 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 38. South wind 3 to 5 mph. Chance of precipitation is 60%.

    Low: 38 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 49. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Rain

  • Friday Night

    Friday Night: Rain likely before 11pm, then rain likely, possibly mixed with snow. Snow level 3500 feet lowering to 2200 feet. Mostly cloudy, with a low around 33. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: A chance of rain and snow before 11am. Snow level 1600 feet. Mostly cloudy, with a high near 41.

    High: 41 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 38. Calm wind.
Wednesday
A 30 percent chance of rain, mainly after 5pm. Mostly cloudy, with a high near 54. East wind 3 to 5 mph.
Wednesday Night
A 50 percent chance of rain after 3am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 38. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Christmas Day
A 40 percent chance of rain. Mostly cloudy, with a high near 52. Calm wind.
Thursday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 38. South wind 3 to 5 mph. Chance of precipitation is 60%.
Friday
Rain. High near 49. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain likely before 11pm, then rain likely, possibly mixed with snow. Snow level 3500 feet lowering to 2200 feet. Mostly cloudy, with a low around 33. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday
A chance of rain and snow before 11am. Snow level 1600 feet. Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 45.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kooskia ID
 46.13°N 115.98°W (Elev. 1352 ft)
Last Update:
1:02 am MST Dec 24, 2025
Forecast Valid:
2am MST Dec 24, 2025-6pm MST Dec 30, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation