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

81°F

27°C

Humidity 77%
Wind Speed S 13 mph
Barometer 29.71 in (1005.5 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 20 Jun 10:53 pm CDT
Extended Forecast for

Morrison IA

Heat Advisory June 21, 12:00pm until June 22, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 77. Windy, with a south southwest wind 13 to 23 mph, with gusts as high as 32 mph.

    Low: 77 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny, with a high near 95. Heat index values as high as 103. Windy, with a south southwest wind 23 to 26 mph, with gusts as high as 38 mph.

    High: 95 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77. Windy, with a south southwest wind 17 to 23 mph, with gusts as high as 33 mph.

    Low: 77 °F

    Mostly Clear
    and Windy

  • Sunday

    Sunday: Sunny, with a high near 95. Heat index values as high as 100. Windy, with a south wind 18 to 24 mph, with gusts as high as 34 mph.

    High: 95 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. Windy, with a south wind 18 to 22 mph, with gusts as high as 32 mph.

    Low: 76 °F

    Mostly Clear
    and Windy

  • Monday

    Monday: Showers likely and possibly a thunderstorm after 1pm. Sunny, with a high near 93. Breezy. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Breezy. Sunny
    then Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.

    Low: 68 °F

    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Windy, with a south southwest wind 13 to 23 mph, with gusts as high as 32 mph.
Saturday
Sunny, with a high near 95. Heat index values as high as 103. Windy, with a south southwest wind 23 to 26 mph, with gusts as high as 38 mph.
Saturday Night
Mostly clear, with a low around 77. Windy, with a south southwest wind 17 to 23 mph, with gusts as high as 33 mph.
Sunday
Sunny, with a high near 95. Heat index values as high as 100. Windy, with a south wind 18 to 24 mph, with gusts as high as 34 mph.
Sunday Night
Mostly clear, with a low around 76. Windy, with a south wind 18 to 22 mph, with gusts as high as 32 mph.
Monday
Showers likely and possibly a thunderstorm after 1pm. Sunny, with a high near 93. Breezy. Chance of precipitation is 60%. 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 66. Chance of precipitation is 80%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.
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 67. Chance of precipitation is 70%.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Morrison IA
 42.34°N 92.68°W
Last Update:
11:01 pm CDT Jun 20, 2025
Forecast Valid:
11pm CDT Jun 20, 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