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

51°F

11°C

Humidity 86%
Wind Speed SE 20 G 30 mph
Barometer 30.08 in (1019.1 mb)
Dewpoint 47°F (8°C)
Visibility 9.00 mi
Wind Chill45°F (7°C)
Last update 11 Apr 4:53 pm CDT
Extended Forecast for

Grundy Center IA

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 52. Breezy, with a south southeast wind around 16 mph, with gusts as high as 23 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 52 °F

    Chance
    Showers and
    Breezy

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a temperature rising to around 59 by 5am. Windy, with a south southeast wind 17 to 21 mph, with gusts as high as 29 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F⇑

    Chance
    T-storms and
    Windy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 71. Windy, with a south southwest wind 21 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Windy. Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms, mainly between 7pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 58. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely and
    Breezy then
    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 77. Breezy, with a south wind 8 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 77 °F

    Partly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 61. Breezy. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    T-storms and
    Breezy

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 82. Breezy. Chance of precipitation is 60%.

    High: 82 °F

    Mostly Sunny
    then Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 52. Breezy, with a south southeast wind around 16 mph, with gusts as high as 23 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a temperature rising to around 59 by 5am. Windy, with a south southeast wind 17 to 21 mph, with gusts as high as 29 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 71. Windy, with a south southwest wind 21 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms, mainly between 7pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 58. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 77. Breezy, with a south wind 8 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 61. Breezy. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 82. Breezy. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 56.
Wednesday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Sunny, with a high near 78.
Thursday Night
A 30 percent chance of showers. Mostly clear, with a low around 55.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74. Windy.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 37. Breezy.
Saturday
A chance of showers. Mostly sunny, with a high near 53. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
2:46 pm CDT Apr 11, 2026
Forecast Valid:
5pm CDT Apr 11, 2026-6pm CDT Apr 18, 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