Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Current conditions at

Grangeville - Idaho County Airport (KGIC)

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

Partly Cloudy

64°F

18°C

Humidity 48%
Wind Speed N 0 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 06 Sep 11:35 AM PDT
Extended Forecast for

Kooskia ID

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm.  Partly sunny, with a high near 81. Calm wind becoming north northeast around 5 mph.

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am.  Patchy fog after 2am. Low around 51. North northwest wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers
    Likely then
    Showers and
    Patchy Fog

  • Labor Day

    Labor Day: Rain, mainly before 9am.  Areas of fog before 7am. High near 68. Calm wind becoming south southwest around 5 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 68 °F

    Rain and
    Areas Fog
    then Chance
    Rain

  • Monday Night

    Monday Night: A chance of rain between 8pm and 10pm.  Patchy fog before 3am, then patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 45. Calm wind.  Chance of precipitation is 30%.

    Low: 45 °F

    Chance Rain
    then Patchy
    Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Calm wind.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny, with a high near 81. Calm wind becoming north northeast around 5 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Patchy fog after 2am. Low around 51. North northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Labor Day
Rain, mainly before 9am. Areas of fog before 7am. High near 68. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
A chance of rain between 8pm and 10pm. Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 45. Calm wind. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 77. Calm wind.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 51.
Friday
A slight chance of rain. Mostly sunny, with a high near 78.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Saturday
A chance of rain. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Kooskia ID
 46.13°N 115.98°W (Elev. 1352 ft)
12:21 pm MDT Sep 6, 2026
1pm MDT Sep 6, 2026-6pm MDT Sep 12, 2026
 
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Additional Resources

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