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.

Light Snow

8°F

-13°C

Humidity 80%
Wind Speed NW 16 mph
Barometer 29.99 in (1017.4 mb)
Dewpoint 3°F (-16°C)
Visibility 1.25 mi
Wind Chill-10°F (-23°C)
Last update 17 Jan 7:53 am CST
Extended Forecast for

3 Miles SW Union IA

  • Today

    Today: Snow, mainly before noon. High near 13. Wind chill values as low as -10. Windy, with a northwest wind 15 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.

    High: 13 °F

    Windy. Snow
    then Chance
    Snow

  • Tonight

    Tonight: Mostly cloudy, with a low around 5. Wind chill values as low as -10. Northwest wind 7 to 15 mph becoming southwest after midnight. Winds could gust as high as 23 mph.

    Low: 5 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of snow. Mostly cloudy, with a high near 24. Wind chill values as low as -5. Windy, with a south southwest wind 11 to 16 mph becoming northwest 21 to 26 mph in the afternoon. Winds could gust as high as 34 mph. New snow accumulation of less than a half inch possible.

    High: 24 °F

    Chance Snow
    and Windy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -2. Wind chill values as low as -25. Windy, with a northwest wind 20 to 26 mph, with gusts as high as 34 mph.

    Low: -2 °F

    Mostly Cloudy
    and Windy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 11. Blustery, with a west northwest wind 11 to 18 mph, with gusts as high as 24 mph.

    High: 11 °F

    Mostly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 2.

    Low: 2 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

Detailed Forecast

Today
Snow, mainly before noon. High near 13. Wind chill values as low as -10. Windy, with a northwest wind 15 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.
Tonight
Mostly cloudy, with a low around 5. Wind chill values as low as -10. Northwest wind 7 to 15 mph becoming southwest after midnight. Winds could gust as high as 23 mph.
Sunday
A 50 percent chance of snow. Mostly cloudy, with a high near 24. Wind chill values as low as -5. Windy, with a south southwest wind 11 to 16 mph becoming northwest 21 to 26 mph in the afternoon. Winds could gust as high as 34 mph. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around -2. Wind chill values as low as -25. Windy, with a northwest wind 20 to 26 mph, with gusts as high as 34 mph.
M.L.King Day
Mostly sunny, with a high near 11. Blustery, with a west northwest wind 11 to 18 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 2.
Tuesday
Mostly sunny, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 26.
Wednesday Night
Mostly cloudy, with a low around 9.
Thursday
Mostly sunny, with a high near 21.
Thursday Night
Mostly cloudy, with a low around 8.
Friday
Partly sunny, with a high near 23.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Union IA
 42.21°N 93.09°W
Last Update:
6:43 am CST Jan 17, 2026
Forecast Valid:
8am CST Jan 17, 2026-6pm CST Jan 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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