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

69°F

21°C

Humidity 78%
Wind Speed E 14 mph
Barometer 29.96 in (1014.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 27 Jun 9:53 am CDT
Extended Forecast for

Marshalltown IA

Extreme Heat Watch June 28, 01:00pm until June 30, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Today

    Today: Partly sunny, with a high near 82. East southeast wind 9 to 13 mph, with gusts as high as 18 mph.

    High: 82 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 67. Southeast wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 93. Heat index values as high as 103. Breezy, with a south southeast wind 15 to 18 mph, with gusts as high as 30 mph.

    High: 93 °F

    Gradual
    Clearing and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. Breezy, with a south wind 11 to 16 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 96. Breezy, with a south wind 13 to 20 mph, with gusts as high as 31 mph.

    High: 96 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. Breezy.

    Low: 77 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 96. Breezy.

    High: 96 °F

    Slight Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of showers, with thunderstorms also possible after 1am. Mostly clear, with a low around 74. Breezy. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    Showers and
    Breezy then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 82. East southeast wind 9 to 13 mph, with gusts as high as 18 mph.
Tonight
A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 67. Southeast wind 10 to 13 mph, with gusts as high as 21 mph.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 93. Heat index values as high as 103. Breezy, with a south southeast wind 15 to 18 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 76. Breezy, with a south wind 11 to 16 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 96. Breezy, with a south wind 13 to 20 mph, with gusts as high as 31 mph.
Monday Night
Partly cloudy, with a low around 77. Breezy.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 96. Breezy.
Tuesday Night
A slight chance of showers, with thunderstorms also possible after 1am. Mostly clear, with a low around 74. Breezy. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
Sunny, with a high near 95.
Thursday Night
Partly cloudy, with a low around 72.
Friday
Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marshalltown IA
 42.04°N 92.92°W
Last Update:
8:53 am CDT Jun 27, 2026
Forecast Valid:
10am CDT Jun 27, 2026-6pm CDT Jul 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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