National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fair

43°F

6°C

Humidity 65%
Wind Speed SW 7 mph
Barometer 30.04 in (1018.2 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 12 Jan 4:53 pm CST
Extended Forecast for

4 Miles WSW Union IA

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 37. West southwest wind 7 to 14 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 49. Breezy, with a west northwest wind 14 to 18 mph, with gusts as high as 30 mph.

    High: 49 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22. Windy, with a northwest wind 15 to 23 mph, with gusts as high as 32 mph.

    Low: 22 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: Mostly sunny, with a temperature falling to around 20 by 5pm. Wind chill values as low as 5. Windy, with a north northwest wind 15 to 24 mph, with gusts as high as 33 mph.

    High: 25 °F⇓

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 11. North northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 20 mph.

    Low: 11 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 25. Blustery.

    Low: 25 °F

    Chance Snow
    and Blustery

  • Friday

    Friday: A 40 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 33. Windy.

    High: 33 °F

    Chance Snow
    and Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 6. Windy.

    Low: 6 °F

    Mostly Cloudy
    and Windy

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 37. West southwest wind 7 to 14 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 49. Breezy, with a west northwest wind 14 to 18 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 22. Windy, with a northwest wind 15 to 23 mph, with gusts as high as 32 mph.
Wednesday
Mostly sunny, with a temperature falling to around 20 by 5pm. Wind chill values as low as 5. Windy, with a north northwest wind 15 to 24 mph, with gusts as high as 33 mph.
Wednesday Night
Mostly clear, with a low around 11. North northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 20 mph.
Thursday
A 30 percent chance of snow after noon. Partly sunny, with a high near 31.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 25. Blustery.
Friday
A 40 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 33. Windy.
Friday Night
Mostly cloudy, with a low around 6. Windy.
Saturday
Mostly cloudy, with a high near 15. Blustery.
Saturday Night
Mostly cloudy, with a low around 0.
Sunday
Mostly sunny, with a high near 16.
Sunday Night
Mostly cloudy, with a low around 6.
M.L.King Day
Mostly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Union IA
 42.21°N 93.15°W
Last Update:
3:16 pm CST Jan 12, 2026
Forecast Valid:
5pm CST Jan 12, 2026-6pm CST Jan 19, 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