Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fog/Mist

74°F

23°C

Humidity 100%
Wind Speed S 3 mph
Barometer 29.88 in (1010.8 mb)
Dewpoint 74°F (23°C)
Visibility 2.00 mi
Last update 26 Jul 4:53 am CDT
Extended Forecast for

4 Miles NNW Le Grand IA

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Extreme Heat Warning July 26, 12:00pm until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning
  • Overnight

    Overnight: A 20 percent chance of showers.  Mostly cloudy, with a low around 72. South southeast wind around 5 mph.

    Low: 72 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers before 7am, then a slight chance of showers and thunderstorms between 7am and 8am.  Partly sunny, with a high near 94. Heat index values as high as 111. Light and variable wind becoming west southwest 5 to 9 mph in the morning.  Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms between 1am and 4am.  Partly cloudy, with a low around 76. Southwest wind around 9 mph.  Chance of precipitation is 20%.

    Low: 76 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Sunny, with a high near 95. Heat index values as high as 107. South southwest wind 6 to 9 mph becoming west northwest in the afternoon.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 70. Northwest wind 5 to 7 mph.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 72. South southeast wind around 5 mph.
Sunday
A slight chance of showers before 7am, then a slight chance of showers and thunderstorms between 7am and 8am. Partly sunny, with a high near 94. Heat index values as high as 111. Light and variable wind becoming west southwest 5 to 9 mph in the morning. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms between 1am and 4am. Partly cloudy, with a low around 76. Southwest wind around 9 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 95. Heat index values as high as 107. South southwest wind 6 to 9 mph becoming west northwest in the afternoon.
Monday Night
Mostly clear, with a low around 70. Northwest wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
A 40 percent chance of showers. Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 86.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Le Grand IA
 42.06°N 92.8°W
4:47 am CDT Jul 26, 2026
5am CDT Jul 26, 2026-6pm CDT Aug 1, 2026
 
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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