Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11° N Lon: 92.92° W Elev: 971 ft.

Fair

50°F

10°C

Humidity 83%
Wind Speed S 18 G 29 mph
Barometer 29.33 in (993.4 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 17 Feb 9:53 pm CST
Detailed forecast for

Grundy County

Rest Of Tonight
Partly cloudy with a slight chance of thunderstorms. A chance of showers early this evening, then a slight chance of showers. Lows in the lower 40s. South winds around 20 mph, becoming southwest. Chance of rain 30 percent.
Wednesday
Sunny and very windy. Highs around 60. West winds 30 to 40 mph.
Wednesday Night
Partly cloudy. Lows in the lower 30s. West winds 10 to 15 mph, becoming north 5 to 10 mph after midnight.
Thursday
Partly sunny. A slight chance of rain and snow in the morning, then a chance of rain in the afternoon. Little or no snow accumulation. Highs in the upper 40s. Northeast winds 10 to 15 mph. Chance of precipitation 50 percent.
Thursday Night
Rain likely in the evening. Snow likely. Light snow accumulation possible. Lows in the mid 20s. Northwest winds 15 to 20 mph. Chance of precipitation 60 percent.
Friday
Mostly cloudy with a chance of snow in the morning, then mostly sunny in the afternoon. Cooler with highs in the lower 30s. Chance of snow 30 percent.
Friday Night
Partly cloudy. Lows 15 to 20.
Saturday
Mostly sunny. A slight chance of snow in the afternoon. Highs in the lower 30s. Chance of snow 20 percent.
Saturday Night
Partly cloudy. Lows 10 to 15.
Sunday
Mostly sunny. Highs in the mid 20s.
Sunday Night
Partly cloudy in the evening, then becoming mostly clear. Lows around 10 above.
Monday
Sunny. Highs around 30.
Monday Night
Partly cloudy. Lows around 20.
Tuesday
Mostly sunny. Highs in the mid 40s.



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837 PM CST Tue Feb 17 2026
 
 

Additional Resources

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