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.

Light Snow

21°F

-6°C

Humidity 74%
Wind Speed NW 17 G 29 mph
Barometer 30.29 in (1026.9 mb)
Dewpoint 14°F (-10°C)
Visibility 5.00 mi
Wind Chill7°F (-14°C)
Last update 11 Jan 12:53 am CST
Extended Forecast for

Union IA

  • Overnight

    Overnight: A chance of flurries before 3am. Cloudy, then gradually becoming partly cloudy, with a low around 17. Wind chill values as low as 5. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 33 mph.

    Low: 17 °F

    Chance
    Flurries and
    Blustery

  • Sunday

    Sunday: Mostly sunny, with a high near 33. Wind chill values as low as 5. Northwest wind 8 to 13 mph becoming southwest in the afternoon.

    High: 33 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a steady temperature around 29. Southwest wind 6 to 13 mph, with gusts as high as 18 mph.

    Low: 29 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 45. West wind 6 to 8 mph.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. Southwest wind 8 to 13 mph, with gusts as high as 18 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51. Breezy.

    High: 51 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26. Blustery.

    Low: 26 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Blustery

  • Wednesday

    Wednesday: Partly sunny, with a high near 30. Blustery.

    High: 30 °F

    Partly Sunny
    and Blustery

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of flurries before 3am. Cloudy, then gradually becoming partly cloudy, with a low around 17. Wind chill values as low as 5. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 33 mph.
Sunday
Mostly sunny, with a high near 33. Wind chill values as low as 5. Northwest wind 8 to 13 mph becoming southwest in the afternoon.
Sunday Night
Increasing clouds, with a steady temperature around 29. Southwest wind 6 to 13 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 45. West wind 6 to 8 mph.
Monday Night
Mostly cloudy, with a low around 34. Southwest wind 8 to 13 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 51. Breezy.
Tuesday Night
Mostly cloudy, with a low around 26. Blustery.
Wednesday
Partly sunny, with a high near 30. Blustery.
Wednesday Night
Partly cloudy, with a low around 17.
Thursday
Partly sunny, with a high near 36.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 27.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 34. Windy.
Friday Night
Mostly cloudy, with a low around 14. Blustery.
Saturday
Partly sunny, with a high near 23. Blustery.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Union IA
 42.23°N 93.06°W
Last Update:
11:43 pm CST Jan 10, 2026
Forecast Valid:
12am CST Jan 11, 2026-6pm CST Jan 17, 2026
 
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Additional Resources

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Chance of Precipitation