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.

Thunderstorm in Vicinity

68°F

20°C

Humidity 84%
Wind Speed SE 15 mph
Barometer 29.67 in (1004.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 15 Apr 2:53 pm CDT
Extended Forecast for

Grundy Center IA

Severe T-storm Watch until April 15, 07:00pm
Severe T-storm Warning until April 15, 03:45pm
Click here for hazard details and duration
Severe T-storm Watch
Severe T-storm Warning
  •  
    Severe T-storm Watch until April 15, 07:00pm
    Severe T-storm Warning until April 15, 03:45pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 70 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 1am. Some of the storms could be severe. Mostly cloudy, with a low around 50. North northwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Severe
    Thunderstorms
    then Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 74. North northwest wind 6 to 10 mph becoming south southwest in the afternoon.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. South southeast wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 76. Windy, with a south southeast wind 14 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Windy. Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 33. Breezy. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Windy.

    High: 49 °F

    Mostly Sunny
    and Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. Blustery.

    Low: 30 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

Detailed Forecast

This Afternoon
Showers and thunderstorms likely. Some of the storms could be severe. Mostly cloudy, with a high near 70. South southeast wind around 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 1am. Some of the storms could be severe. Mostly cloudy, with a low around 50. North northwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Sunny, with a high near 74. North northwest wind 6 to 10 mph becoming south southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 54. South southeast wind 8 to 13 mph, with gusts as high as 20 mph.
Friday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 76. Windy, with a south southeast wind 14 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 33. Breezy. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 49. Windy.
Saturday Night
Mostly clear, with a low around 30. Blustery.
Sunday
Sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 67. Breezy.
Monday Night
Mostly clear, with a low around 49. Breezy.
Tuesday
Sunny, with a high near 72. Breezy.
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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:
1:27 pm CDT Apr 15, 2026
Forecast Valid:
3pm CDT Apr 15, 2026-6pm CDT Apr 21, 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