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Isaias Expected To Be A Strong Hurricane Approaching The Northern Gulf Coast Friday

Isaias is expected to strengthen and be a strong hurricane when it approaches the northern Gulf Coast on Friday. Damaging hurricane-force winds and life-threatening storm surge impacts are expected Friday into Saturday. Isaias will bring heavy rainfall to the northern Gulf Coast and much of the Southeast U.S. Friday into the weekend. Read More >

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

51°F

11°C

Humidity 79%
Wind Speed N 5 mph
Barometer 30.08 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 8 Oct 5:35 am CDT
Extended Forecast for

Guernsey IA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 74. Light and variable wind.

    High: 74 °F

    Becoming
    Sunny

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 1am. Increasing clouds, with a low around 54. Calm wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 40%.

    Low: 54 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 80. Southeast wind 6 to 10 mph, with gusts as high as 18 mph. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    T-storms then
    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 62. South wind around 8 mph.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 81. South wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 81 °F

    Sunny

  • 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

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 74. Light and variable wind.
Tonight
A chance of showers, with thunderstorms also possible after 1am. Increasing clouds, with a low around 54. Calm wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 40%.
Friday
A 40 percent chance of showers and thunderstorms, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 80. Southeast wind 6 to 10 mph, with gusts as high as 18 mph. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Clear, with a low around 62. South wind around 8 mph.
Saturday
Sunny, with a high near 81. South wind 9 to 13 mph, with gusts as high as 21 mph.
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 77.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Guernsey IA
 41.66°N 92.34°W
Last Update:
4:56 am CDT Oct 8, 2026
Forecast Valid:
5am CDT Oct 8, 2026-6pm CDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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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