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Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Partly Cloudy

71°F

22°C

Humidity	76%
Wind Speed	SE 9 mph
Barometer	29.82 in (1008.9 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	20 Jun 4:53 am CDT

More Information:

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

Extended Forecast for

Grundy Center IA

Heat Advisory June 21, 12:00pm until June 22, 09:00pm

Severe T-storm Warning until June 20, 06:15am

Severe T-storm Warning June 20, 05:22am until June 20, 05:30am

Click here for hazard details and duration

Heat Advisory

Severe T-storm Warning

Severe T-storm Warning until June 20, 06:15am
Severe T-storm Warning June 20, 05:22am until June 20, 05:30am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 67 °F
T-storms
Likely
Friday
High: 91 °F
Breezy.
T-storms
Likely then
Sunny
Friday Night
Low: 77 °F
Mostly Clear
and Windy
Saturday
High: 95 °F
Sunny and
Windy
Saturday Night
Low: 76 °F
Clear and
Windy
Sunday
High: 94 °F
Sunny and
Windy
Sunday Night
Low: 75 °F
Slight Chance
T-storms and
Windy
Monday
High: 91 °F
Slight Chance
T-storms then
Showers
Likely

Detailed Forecast

Overnight

Showers and thunderstorms likely. Mostly cloudy, with a low around 67. South wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Showers and thunderstorms likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 91. Breezy, with a south wind 14 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

Mostly clear, with a low around 77. Windy, with a south southwest wind 18 to 22 mph, with gusts as high as 32 mph.

Saturday

Sunny, with a high near 95. Heat index values as high as 103. Windy, with a south southwest wind 22 to 25 mph, with gusts as high as 36 mph.

Saturday Night

Clear, with a low around 76. Windy, with a south southwest wind 20 to 22 mph, with gusts as high as 31 mph.

Sunday

Sunny, with a high near 94. Windy.

Sunday Night

A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 75. Windy.

Monday

A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Sunny, with a high near 91. Chance of precipitation is 60%.

Monday Night

Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 80%.

Tuesday

Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.

Tuesday Night

Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.

Wednesday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Chance of precipitation is 70%.

Wednesday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.

Thursday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Chance of precipitation is 60%.