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

Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fair

68°F

20°C

Humidity 61%
Wind Speed S 9 mph
Barometer 29.99 in (1014.7 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 26 May 1:53 am CDT
Extended Forecast for

Grundy Center IA

  • Overnight

    Overnight: Mostly clear, with a low around 60. South southwest wind around 9 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. South wind 7 to 10 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 58. South wind 5 to 7 mph becoming calm in the evening.

    Low: 58 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. Light east wind becoming east northeast 5 to 9 mph after midnight.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 60. South southwest wind around 9 mph.
Tuesday
Sunny, with a high near 86. South wind 7 to 10 mph.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 58. South wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 60. Light east wind becoming east northeast 5 to 9 mph after midnight.
Thursday
Sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 53.
Monday
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 92.76°W
Last Update:
1:26 am CDT May 26, 2026
Forecast Valid:
2am CDT May 26, 2026-6pm CDT Jun 1, 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