National Weather Service

News Headlines

Severe storms likely Friday through early next week

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fair

61°F

16°C

Humidity	93%
Wind Speed	S 9 mph
Barometer	29.75 in (1006.7 mb)
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Last update	16 May 4:53 am CDT

More Information:

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

Extended Forecast for

Union IA

Today
High: 85 °F
Mostly Sunny
Tonight
Low: 60 °F
Showers
Likely
Sunday
High: 85 °F
Showers
Likely and
Windy
Sunday Night
Low: 63 °F
Chance
T-storms and
Windy then
Showers and
Breezy
Monday
High: 86 °F
Showers and
Windy
Monday Night
Low: 56 °F
T-storms and
Breezy
Tuesday
High: 69 °F
Partly Sunny
and Breezy
Tuesday Night
Low: 43 °F
Partly Cloudy
Wednesday
High: 64 °F
Mostly Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 85. Calm wind becoming east 5 to 9 mph in the afternoon.

Tonight

Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 60. East wind 8 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

Sunday

Showers and thunderstorms likely, mainly before noon. Mostly cloudy, with a high near 85. Windy, with a south wind 14 to 19 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 63. Windy, with a south wind 15 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday

Showers and possibly a thunderstorm. High near 86. Windy, with a south wind 15 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Showers and possibly a thunderstorm before 4am, then showers likely. Low around 56. Breezy. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Tuesday

Partly sunny, with a high near 69. Breezy.

Tuesday Night

Partly cloudy, with a low around 43.

Wednesday

Mostly sunny, with a high near 64.

Wednesday Night

Partly cloudy, with a low around 42.

Thursday

Mostly sunny, with a high near 69.

Thursday Night

Partly cloudy, with a low around 46.