Hurricane and Storm Surge Watches Issued for the Northern Gulf Coast for Strengthening Tropical Storm Isaias

Tropical Storm Isaias is forecast to track toward the central Gulf Coast while strengthening into a hurricane on Thursday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts along portions of the northern Gulf Coast Friday into Saturday. Isaias will bring heavy rainfall to the central Gulf Coast and much of the Southeast Friday into the weekend. Read More >

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

70°F

21°C

Humidity 36%
Wind Speed W 3 mph
Barometer 29.98 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 7 Oct 6:35 pm CDT
Extended Forecast for

5 Miles SSW Gilman IA

  • Tonight

    Tonight: Mostly clear, with a low around 51. West northwest wind 3 to 7 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 73. Calm wind.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after midnight.  Increasing clouds, with a low around 55. Calm wind becoming east southeast around 5 mph after midnight.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny, then gradually becoming sunny, with a high near 79. Southeast wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 79 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Clear, with a low around 63. South wind around 9 mph, with gusts as high as 18 mph.

    Low: 63 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Breezy.

    High: 81 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 51. West northwest wind 3 to 7 mph.
Thursday
Mostly sunny, with a high near 73. Calm wind.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 55. Calm wind becoming east southeast around 5 mph after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, then gradually becoming sunny, with a high near 79. Southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 63. South wind around 9 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 81. Breezy.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 60.
Columbus Day
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
A 40 percent chance of showers. Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Gilman IA
 41.82°N 92.83°W
5:51 pm CDT Oct 7, 2026
6pm CDT Oct 7, 2026-6pm CDT Oct 14, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database