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Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Grangeville - Idaho County Airport (KGIC)

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

Clear

36°F

2°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 19 May 01:55 AM PDT
Extended Forecast for

Grangeville ID

Frost Advisory until May 19, 10:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until May 19, 10:00am

    NOW until 10:00am Tue

    Frost Advisory

  • Overnight

    Low: 35 °F

    Areas Frost

  • Tuesday

    Tuesday: Areas of frost before 7am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 63 °F

    Areas Frost
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain between 9pm and 10pm. Mostly cloudy, with a low around 40. North wind 5 to 8 mph becoming calm in the evening.

    Low: 40 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain after 3pm. Partly sunny, with a high near 63. Calm wind becoming north northwest 5 to 9 mph in the afternoon.

    High: 63 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain. Partly cloudy, with a low around 40. North northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 40 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Overnight
Areas of frost after 5am. Otherwise, mostly clear, with a low around 35. South southwest wind 3 to 5 mph.
Tuesday
Areas of frost before 7am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming north 5 to 8 mph in the afternoon.
Tuesday Night
A 20 percent chance of rain between 9pm and 10pm. Mostly cloudy, with a low around 40. North wind 5 to 8 mph becoming calm in the evening.
Wednesday
A 20 percent chance of rain after 3pm. Partly sunny, with a high near 63. Calm wind becoming north northwest 5 to 9 mph in the afternoon.
Wednesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 40. North northwest wind 5 to 10 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 46.
Memorial Day
A slight chance of rain. Mostly 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 May 19, 2026
Forecast Valid:
3am MDT May 19, 2026-6pm MDT May 25, 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