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.

Fair

78°F

26°C

Humidity 82%
Wind Speed S 17 G 29 mph
Barometer 29.69 in (1004.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 21 Jun 4:53 am CDT
Extended Forecast for

5 Miles NW Le Grand IA

Heat Advisory June 21, 05:26am until June 22, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 21, 05:26am until June 22, 09:00pm

    NOW until 9:00pm Sun

    Heat Advisory

  • Today

    High: 95 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Clear, with a low around 76. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 29 mph.

    Low: 76 °F

    Clear and
    Breezy

  • Sunday

    Sunday: Sunny, with a high near 95. Heat index values as high as 103. Windy, with a south wind 17 to 24 mph, with gusts as high as 36 mph.

    High: 95 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. Windy, with a south southwest wind 15 to 21 mph, with gusts as high as 30 mph.

    Low: 75 °F

    Mostly Clear
    and Windy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Southwest wind 13 to 15 mph, with gusts as high as 23 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    T-storms then
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.

    Low: 68 °F

    T-storms
    Likely

Detailed Forecast

Today
Sunny, with a high near 95. Heat index values as high as 105. Windy, with a south southwest wind 20 to 24 mph, with gusts as high as 36 mph.
Tonight
Clear, with a low around 76. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 95. Heat index values as high as 103. Windy, with a south wind 17 to 24 mph, with gusts as high as 36 mph.
Sunday Night
Mostly clear, with a low around 75. Windy, with a south southwest wind 15 to 21 mph, with gusts as high as 30 mph.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Southwest wind 13 to 15 mph, with gusts as high as 23 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Le Grand IA
 42.06°N 92.83°W
Last Update:
3:38 am CDT Jun 21, 2025
Forecast Valid:
5am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
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