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

Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Grangeville - Idaho County Airport (KGIC)

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

Overcast

43°F

6°C

Humidity 81%
Wind Speed WSW 8 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 15 Apr 04:35 AM PDT
Extended Forecast for

Grangeville ID

  • Overnight

    Overnight: Showers. Low around 39. South southwest wind around 6 mph. Chance of precipitation is 90%.

    Low: 39 °F

    Showers

  • Wednesday

    Wednesday: Rain showers before 4pm, then snow showers. Some thunder is also possible. Snow level 5000 feet lowering to 3300 feet in the afternoon . High near 48. South southwest wind 7 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 48 °F

    Showers then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before 8pm. Low around 28. West southwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Snow Showers

  • Thursday

    Thursday: Snow showers. Some thunder is also possible. High near 40. West southwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 27. Northwest wind 6 to 10 mph becoming south after midnight. Little or no snow accumulation expected.

    Low: 27 °F

    Chance Snow
    Showers

  • Friday

    Friday: A chance of snow showers before 3pm, then a chance of rain and snow showers. Partly sunny, with a high near 47. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 47 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers. Low around 39. South southwest wind around 6 mph. Chance of precipitation is 90%.
Wednesday
Rain showers before 4pm, then snow showers. Some thunder is also possible. Snow level 5000 feet lowering to 3300 feet in the afternoon . High near 48. South southwest wind 7 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Snow showers, mainly before 8pm. Low around 28. West southwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
Snow showers. Some thunder is also possible. High near 40. West southwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Thursday Night
A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 27. Northwest wind 6 to 10 mph becoming south after midnight. Little or no snow accumulation expected.
Friday
A chance of snow showers before 3pm, then a chance of rain and snow showers. Partly sunny, with a high near 47. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday Night
Mostly clear, with a low around 27.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 65.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 41.
Monday
A slight chance of rain. Partly sunny, with a high near 66.
Monday Night
A chance of rain. Mostly cloudy, with a low around 43.
Tuesday
A chance of rain. Partly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grangeville ID
 45.95°N 116.12°W (Elev. 3301 ft)
Last Update:
2:01 am MDT Apr 15, 2026
Forecast Valid:
5am MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
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