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July 20, 2026 - Tornado Track Update

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

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

Fog/Mist

61°F

16°C

Humidity	97%
Wind Speed	SE 5 mph
Barometer	29.95 in (1013.8 mb)
Dewpoint	60°F (16°C)
Visibility	6.00 mi
Last update	3 Aug 4:53 am CDT

More Information:

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

Detailed forecast for

Tama County

Today

Mostly sunny. Patchy fog this morning. Highs in the lower 80s. Southeast winds 5 to 10 mph.

Tonight

Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Southeast winds 5 to 10 mph.

Tuesday

Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 80s. South winds 5 to 10 mph, becoming west in the afternoon. Chance of rain 20 percent.

Tuesday Night

Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows around 60. North winds 5 to 10 mph. Chance of rain 90 percent.

Wednesday

Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Northeast winds around 5 mph. Chance of rain 90 percent.

Wednesday Night

Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 50 percent.

Thursday

Mostly sunny. Highs around 80.

Thursday Night

Mostly clear. Lows in the upper 50s.

Friday

Mostly sunny. Highs in the lower 80s.

Friday Night

Mostly clear with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 60s. Chance of rain 20 percent.

Saturday

Sunny. Highs in the mid 80s.

Saturday Night

Mostly clear. Lows in the upper 60s.

Sunday

Mostly sunny. Highs in the upper 80s.