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.

Fair

76°F

24°C

Humidity 37%
Wind Speed S 16 G 21 mph
Barometer 29.80 in (1008.7 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Apr 3:53 pm CDT
Extended Forecast for

Grundy Center IA

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 74. South wind around 9 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. South wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 76. Windy, with a south southeast wind 14 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Windy. Slight
    Chance
    T-storms then
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 10pm. Mostly cloudy, with a low around 32. Windy, with a northwest wind 18 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 32 °F

    Windy.
    Showers
    Likely then
    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 49. Windy, with a west northwest wind 18 to 22 mph, with gusts as high as 30 mph.

    High: 49 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Blustery.

    Low: 31 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66. Breezy.

    High: 66 °F

    Sunny then
    Sunny and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 74. South wind around 9 mph.
Tonight
Mostly clear, with a low around 57. South wind 8 to 13 mph, with gusts as high as 22 mph.
Friday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 76. Windy, with a south southeast wind 14 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 10pm. Mostly cloudy, with a low around 32. Windy, with a northwest wind 18 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Sunny, with a high near 49. Windy, with a west northwest wind 18 to 22 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 31. Blustery.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 66. Breezy.
Monday Night
Mostly clear, with a low around 50. Breezy.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
2:36 pm CDT Apr 16, 2026
Forecast Valid:
4pm CDT Apr 16, 2026-6pm CDT Apr 22, 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