Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

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

Fair

70°F

21°C

Humidity	82%
Wind Speed	Calm
Barometer	30.03 in (1016.6 mb)
Dewpoint	64°F (18°C)
Visibility	9.00 mi
Last update	13 Jul 8:53 am CDT

More Information:

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

Detailed forecast for

Grundy County

Today

Sunny. Highs in the lower 80s. Southwest winds around 5 mph, increasing to around 10 mph this afternoon.

Tonight

Mostly clear. Lows in the mid 60s. Southwest winds 5 to 10 mph.

Monday

Sunny with highs in the upper 80s. Southwest winds around 5 mph.

Monday Night

Mostly clear. Humid with lows in the mid 60s. South winds around 5 mph.

Tuesday

Sunny with highs in the upper 80s. South winds 5 to 10 mph.

Tuesday Night

Partly cloudy. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 30 percent.

Wednesday

Partly sunny with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 50 percent.

Wednesday Night

Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows around 60. Chance of rain 50 percent.

Thursday

Mostly sunny. A slight chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.

Thursday Night

Partly cloudy. Lows in the upper 50s.

Friday

Mostly sunny. A slight chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.

Friday Night

Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 60s. Chance of rain 30 percent.

Saturday

Partly sunny with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 30 percent.