Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Grangeville - Idaho County Airport (KGIC)

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

Clear

43°F

6°C

Humidity 60%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 18 Apr 08:55 PM PDT
Extended Forecast for

Grangeville ID

  • Tonight

    Tonight: Mostly clear, with a low around 36. South southeast wind around 7 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 67. South southeast wind around 5 mph becoming light and variable.

    High: 67 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 44. Calm wind becoming south around 6 mph after midnight.

    Low: 44 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75. South wind around 5 mph becoming calm.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48. North northeast wind around 6 mph becoming light and variable.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then rain likely after midnight.  Mostly cloudy, with a low around 47. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Rain before noon, then showers and possibly a thunderstorm after noon.  Cloudy, with a high near 51.

    High: 51 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain.  Cloudy, with a low around 41.

    Low: 41 °F

    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 36. South southeast wind around 7 mph.
Sunday
Mostly sunny, with a high near 67. South southeast wind around 5 mph becoming light and variable.
Sunday Night
Mostly cloudy, with a low around 44. Calm wind becoming south around 6 mph after midnight.
Monday
Mostly sunny, with a high near 75. South wind around 5 mph becoming calm.
Monday Night
Partly cloudy, with a low around 48. North northeast wind around 6 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
A chance of showers and thunderstorms, then rain likely after midnight. Mostly cloudy, with a low around 47. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Rain before noon, then showers and possibly a thunderstorm after noon. Cloudy, with a high near 51.
Wednesday Night
Rain. Cloudy, with a low around 41.
Thursday
Rain likely, mainly before noon. Mostly cloudy, with a high near 48.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 35.
Friday
A slight chance of rain. Snow level 4300 feet rising to 5500 feet in the afternoon. Mostly sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 36.
Saturday
A slight chance of rain. Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Grangeville ID
 45.93°N 116.12°W (Elev. 3389 ft)
2:01 pm MDT Apr 18, 2026
10pm MDT Apr 18, 2026-6pm MDT Apr 25, 2026
 
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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