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National Weather Service Flood Inundation Mapping Available for Iowa in September 2025

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

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

Fair

87°F

31°C

Humidity	40%
Wind Speed	S 14 G 22 mph
Barometer	30.08 in (1017.9 mb)
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	3 Oct 3:53 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Marshall County

Tonight

Clear. Lows in the mid 60s. South winds 5 to 10 mph.

Saturday

Sunny. Highs in the upper 80s. South winds 10 to 15 mph, increasing to around 20 mph in the afternoon. Gusts up to 35 mph.

Saturday Night

Clear. Lows in the lower 60s. South winds 15 to 20 mph with gusts up to 30 mph.

Sunday

Sunny. A slight chance of showers and thunderstorms in the afternoon. Breezy with highs in the mid 80s. South winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 20 percent.

Sunday Night

A chance of thunderstorms. Showers likely. Lows in the mid 50s. South winds 10 to 15 mph with gusts up to 25 mph, becoming west 5 to 10 mph after midnight. Chance of rain 70 percent.

Monday

Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Cooler with highs in the mid 60s. Chance of rain 50 percent.

Monday Night

Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows around 50. Chance of rain 50 percent.

Tuesday

Mostly sunny. Highs in the upper 60s.

Tuesday Night

Mostly clear. Lows in the mid 40s.

Wednesday

Sunny. Highs in the upper 60s.

Wednesday Night

Mostly clear. A slight chance of showers after midnight. Lows in the mid 40s. Chance of rain 20 percent.