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

76°F

24°C

Humidity 35%
Wind Speed N 12 mph
Barometer 29.98 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 7 Oct 12:15 pm CDT
Extended Forecast for

4 Miles SW Montezuma IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. North northwest wind around 8 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. Light west northwest wind.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 74. Calm wind.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after midnight.  Increasing clouds, with a low around 56. 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: 56 °F

    Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 79. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 80. North northwest wind around 8 mph.
Tonight
Mostly clear, with a low around 52. Light west northwest wind.
Thursday
Mostly sunny, with a high near 74. Calm wind.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 56. 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. Mostly sunny, with a high near 79. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 62.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 61.
Columbus Day
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Montezuma IA
 41.53°N 92.58°W
2:32 pm CDT Oct 7, 2026
2pm CDT Oct 7, 2026-6pm CDT Oct 13, 2026
 
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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