Likelihood of HISTORIC Northern Rockies 3-5 day precipitation and snowmelt this week in some valleys and west slopes resulting in poor drainage ponding and stream flooding threats along with rockslides. Several feet of heavy snow above 8000 feet possible.

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Current conditions at

Grangeville - Idaho County Airport (KGIC)

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

Overcast

46°F

8°C

Humidity 87%
Wind Speed SW 12 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 43°F (6°C)
Visibility 7.00 mi
Wind Chill40°F (4°C)
Last update 09 Dec 05:55 AM PST
Extended Forecast for

Grangeville ID

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

    NOW until 5:00pm Thu

    Flood Watch

  • Today

    High: 46 °F

    Rain and
    Breezy then
    Rain Likely

  • Tonight

    Tonight: Rain.  Temperature falling to near 39 by 10pm, then rising to around 47 during the remainder of the night. Southwest wind 6 to 16 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 51. South southwest wind around 16 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain.  Cloudy, with a low around 45. South southwest wind 14 to 17 mph, with gusts as high as 30 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely.  Cloudy, with a high near 52. Southwest wind 11 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 70%.

    High: 52 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of rain.  Cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

  • Friday

    Friday: A 20 percent chance of rain before 11am.  Mostly cloudy, with a high near 52.

    High: 52 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of rain after 11pm.  Mostly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Rain, mainly before 1pm. High near 46. Breezy, with a southwest wind 17 to 22 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain. Temperature falling to near 39 by 10pm, then rising to around 47 during the remainder of the night. Southwest wind 6 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. High near 51. South southwest wind around 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 50 percent chance of rain. Cloudy, with a low around 45. South southwest wind 14 to 17 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain likely. Cloudy, with a high near 52. Southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 44.
Friday
A 20 percent chance of rain before 11am. Mostly cloudy, with a high near 52.
Friday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 50.
Saturday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 37.
Sunday
A chance of rain. Mostly cloudy, with a high near 47.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Monday
A chance of rain. Mostly cloudy, with a high near 50.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Grangeville ID
 45.93°N 116.12°W (Elev. 3389 ft)
1:02 am MST Dec 9, 2025
7am MST Dec 9, 2025-6pm MST Dec 15, 2025
 
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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