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.

Overcast and Breezy

48°F

9°C

Humidity 61%
Wind Speed N 21 mph
Barometer 29.84 in (1010.3 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 31 Mar 10:53 am CDT
Extended Forecast for

Grundy Center IA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 62. Windy, with a north wind around 23 mph, with gusts as high as 30 mph.

    High: 62 °F

    Partly Sunny
    and Windy

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Breezy, with a north wind 14 to 18 mph, with gusts as high as 24 mph.

    Low: 36 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Increasing clouds, with a high near 45. Breezy, with an east wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Breezy.
    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm. Low around 34. Breezy, with an east northeast wind around 18 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 34 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Rain. High near 54. Breezy, with an east northeast wind 14 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Rain and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm before 1am, then rain likely. Low around 39. Breezy. Chance of precipitation is 80%.

    Low: 39 °F

    Rain and
    Breezy

  • Saturday

    Saturday: A 50 percent chance of rain. Mostly cloudy, with a high near 48. Windy.

    High: 48 °F

    Chance Rain
    and Windy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 62. Windy, with a north wind around 23 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 36. Breezy, with a north wind 14 to 18 mph, with gusts as high as 24 mph.
Wednesday
Rain likely, mainly after 1pm. Increasing clouds, with a high near 45. Breezy, with an east wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain and possibly a thunderstorm. Low around 34. Breezy, with an east northeast wind around 18 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Thursday
Rain. High near 54. Breezy, with an east northeast wind 14 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Partly cloudy, with a low around 34.
Friday
A 50 percent chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 59.
Friday Night
Rain and possibly a thunderstorm before 1am, then rain likely. Low around 39. Breezy. Chance of precipitation is 80%.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 48. Windy.
Saturday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 30. Windy.
Sunday
Mostly sunny, with a high near 47. Breezy.
Sunday Night
Mostly clear, with a low around 29.
Monday
Mostly sunny, with a high near 52.
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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:
10:44 am CDT Mar 31, 2026
Forecast Valid:
12pm CDT Mar 31, 2026-6pm CDT Apr 6, 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