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

72°F

22°C

Humidity 55%
Wind Speed N 3 mph
Barometer 29.93 in (1013.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 Jun 7:53 pm CDT
Extended Forecast for

Grundy Center IA

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 4am. Increasing clouds, with a low around 57. Northwest wind around 5 mph becoming calm. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers. High near 67. Breezy, with an east wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 67 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 8pm. Mostly cloudy, with a low around 53. Breezy, with an east northeast wind 7 to 16 mph, with gusts as high as 22 mph.

    Low: 53 °F

    Slight Chance
    Showers and
    Breezy then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 75. Northeast wind 6 to 8 mph.

    High: 75 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. East northeast wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76.

    High: 76 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly after 4am. Increasing clouds, with a low around 57. Northwest wind around 5 mph becoming calm. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers. High near 67. Breezy, with an east wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A 20 percent chance of showers before 8pm. Mostly cloudy, with a low around 53. Breezy, with an east northeast wind 7 to 16 mph, with gusts as high as 22 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 75. Northeast wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 54. East northeast wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.79°W
Last Update:
5:56 pm CDT Jun 20, 2026
Forecast Valid:
7pm CDT Jun 20, 2026-6pm CDT Jun 27, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation