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.

Light Rain

42°F

6°C

Humidity 92%
Wind Speed NE 14 mph
Barometer 30.14 in (1021.0 mb)
Dewpoint 40°F (4°C)
Visibility 8.00 mi
Wind Chill35°F (2°C)
Last update 9 Apr 11:53 pm CDT
Extended Forecast for

Grundy Center IA

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers between 2am and 4am. Mostly cloudy, with a low around 36. North wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 36 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 55. North wind 7 to 10 mph.

    High: 55 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35. Light and variable wind becoming east around 6 mph after midnight.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Increasing clouds, with a high near 59. Breezy, with a southeast wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 53. Breezy, with a south southeast wind 16 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Showers
    Likely and
    Breezy

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Windy. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely and
    Windy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 60. Windy.

    Low: 60 °F

    Chance
    Showers and
    Windy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Breezy.

    Low: 61 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers between 2am and 4am. Mostly cloudy, with a low around 36. North wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, then gradually becoming sunny, with a high near 55. North wind 7 to 10 mph.
Friday Night
Mostly clear, with a low around 35. Light and variable wind becoming east around 6 mph after midnight.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Increasing clouds, with a high near 59. Breezy, with a southeast wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 53. Breezy, with a south southeast wind 16 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Windy. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 60. Windy.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Breezy.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Breezy. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 68. Breezy.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 73. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
10:26 pm CDT Apr 9, 2026
Forecast Valid:
12am CDT Apr 10, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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