National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

A Few Clouds

78°F

26°C

Humidity 52%
Wind Speed SW 9 mph
Barometer 30.14 in (1019.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 23 Jun 3:53 pm CDT
Extended Forecast for

Garwin IA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 79. Southwest wind around 9 mph.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 4am. Partly cloudy, with a low around 59. South southwest wind 5 to 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 10am. Mostly sunny, with a high near 82. West wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. West northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 79. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 79. Southwest wind around 9 mph.
Tonight
A chance of showers, with thunderstorms also possible after 4am. Partly cloudy, with a low around 59. South southwest wind 5 to 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 10am. Mostly sunny, with a high near 82. West wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 57. West northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 79. Calm wind becoming north northwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Partly sunny, with a high near 83.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 90. Windy.
Sunday Night
Mostly clear, with a low around 72. Windy.
Monday
Sunny, with a high near 92. Windy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Garwin IA
 42.1°N 92.68°W
Last Update:
2:11 pm CDT Jun 23, 2026
Forecast Valid:
4pm CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation