Dangerous Surf and Rip Currents for most of the Atlantic Shoreline; Record Heat for the West

Hurricane Erin continues to track northward. Tropical storm force winds, storm surge conditions will increase for the Outer Banks today and portions of coastal Virginia. Life-threatening surf and rip currents along much of the east coast of the U.S. this week. Major to extreme HeatRisk with new record high temperatures are expected for many areas of the western U.S. this week. Read More >

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fog/Mist

67°F

19°C

Humidity 100%
Wind Speed W 3 mph
Barometer 30.09 in (1018.2 mb)
Dewpoint 67°F (19°C)
Visibility 5.00 mi
Last update 20 Aug 5:53 am CDT
Extended Forecast for

Garwin IA

  • Today

    Today: Patchy fog before 8am.  Otherwise, sunny, with a high near 83. Calm wind becoming north northeast 5 to 7 mph in the morning.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. East wind 3 to 6 mph.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 79. East wind 3 to 5 mph.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 59. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 83. Calm wind becoming north northeast 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 63. East wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 79. East wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 60. Calm wind.
Friday
Mostly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Sunny, with a high near 75.
Saturday Night
Clear, with a low around 52.
Sunday
Sunny, with a high near 68.
Sunday Night
Clear, with a low around 47.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Garwin IA
 42.1°N 92.68°W
6:34 am CDT Aug 20, 2025
6am CDT Aug 20, 2025-6pm CDT Aug 26, 2025
 
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Additional Resources

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