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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

Grangeville - Idaho County Airport (KGIC)

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

Clear

45°F

7°C

Humidity 65%
Wind Speed SW 19 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 07 Dec 05:55 PM PST
Extended Forecast for

Grangeville ID

Flood Watch December 8, 05:00pm until December 11, 05:00am
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: A 50 percent chance of rain, mainly before 2am. Patchy fog before 3am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 38. Southwest wind 13 to 16 mph, with gusts as high as 26 mph.

    Low: 38 °F

    Chance Rain
    and Patchy
    Fog

  • Monday

    Monday: Rain. Patchy fog between 7am and 11am. High near 45. South southwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Rain and
    Patchy Fog

  • Monday Night

    Monday Night: Rain. Low around 41. South southwest wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain

  • Tuesday

    Tuesday: Rain. Patchy fog after 8am. High near 45. Southwest wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Rain and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Rain. Patchy fog. Low around 38. South wind 6 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: Rain. Patchy fog before 8am. High near 46. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Rain and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Rain before 11pm, then rain, possibly mixed with snow. Low around 36. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow

  • Thursday

    Thursday: Rain likely, possibly mixed with snow, mainly before 11am. Mostly cloudy, with a high near 43.

    High: 43 °F

    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly before 2am. Patchy fog before 3am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 38. Southwest wind 13 to 16 mph, with gusts as high as 26 mph.
Monday
Rain. Patchy fog between 7am and 11am. High near 45. South southwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Low around 41. South southwest wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain. Patchy fog after 8am. High near 45. Southwest wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Patchy fog. Low around 38. South wind 6 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. Patchy fog before 8am. High near 46. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain before 11pm, then rain, possibly mixed with snow. Low around 36. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
Rain likely, possibly mixed with snow, mainly before 11am. Mostly cloudy, with a high near 43.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 35.
Friday
A chance of rain and snow before 2pm, then a slight chance of rain. Mostly cloudy, with a high near 45.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 35.
Saturday
A slight chance of rain. Partly sunny, with a high near 48.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 36.
Sunday
A chance of rain. Partly sunny, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grangeville ID
 45.93°N 116.12°W (Elev. 3389 ft)
Last Update:
1:01 pm MST Dec 7, 2025
Forecast Valid:
7pm MST Dec 7, 2025-6pm MST Dec 14, 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