Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

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

Fair

43°F

6°C

Humidity 56%
Wind Speed Calm
Barometer 30.25 in (1025.0 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 3 Nov 8:53 pm CST
Detailed forecast for

Grundy County

Tonight
Partly cloudy this evening, then becoming mostly cloudy. Lows in the upper 30s. Southwest winds around 5 mph.
Tuesday
Mostly sunny. Highs in the lower 60s. South winds 10 to 15 mph with gusts up to 25 mph.
Tuesday Night
Mostly clear. Lows in the lower 40s. Southwest winds around 5 mph, increasing to northwest 15 to 20 mph with gusts up to 30 mph after midnight.
Wednesday
Sunny. Highs in the mid 50s. Northwest winds 15 to 20 mph with gusts up to 30 mph.
Wednesday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 30s. North winds around 5 mph, becoming southeast after midnight.
Thursday
Partly sunny in the morning, then becoming mostly cloudy. Highs in the upper 50s.
Thursday Night
Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows in the lower 40s. Chance of rain 40 percent.
Friday
Mostly sunny. Highs in the mid 50s. Temperature falling into the upper 40s in the afternoon.
Friday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 30s.
Saturday
A chance of snow in the morning. Partly sunny with a chance of rain. Highs in the lower 50s. Chance of precipitation 40 percent.
Saturday Night
Mostly cloudy with a slight chance of rain and snow in the evening, then partly cloudy after midnight. Lows in the upper 20s. Chance of precipitation 20 percent.
Sunday
Mostly sunny. Highs around 40.
Sunday Night
Partly cloudy. Lows in the mid 20s.
Monday
Mostly sunny. Highs in the lower 40s.



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752 PM CST Mon Nov 3 2025
 
 

Additional Resources

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