Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fair

73°F

23°C

Humidity	96%
Wind Speed	SE 6 mph
Barometer	29.97 in (1014.0 mb)
Dewpoint	72°F (22°C)
Visibility	7.00 mi
Last update	17 Aug 1:53 am CDT

More Information:

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

Extended Forecast for

4 Miles NNW Saint Anthony IA

Overnight
Low: 74 °F
Mostly Clear
Sunday
High: 90 °F
Sunny
Sunday Night
Low: 72 °F
Partly Cloudy
then Chance
T-storms
Monday
High: 90 °F
Slight Chance
T-storms
Monday Night
Low: 68 °F
Chance
T-storms
Tuesday
High: 83 °F
Slight Chance
T-storms
Tuesday Night
Low: 63 °F
Partly Cloudy
Wednesday
High: 79 °F
Sunny
Wednesday Night
Low: 59 °F
Mostly Clear

Detailed Forecast

Overnight

Mostly clear, with a steady temperature around 74. South southwest wind 3 to 5 mph.

Sunday

Sunny, with a high near 90. Light south southeast wind increasing to 5 to 10 mph in the morning.

Sunday Night

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Heat index values as high as 102. South southwest wind 7 to 9 mph.

Monday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. West wind around 6 mph becoming north northwest after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 83.

Tuesday Night

Partly cloudy, with a low around 63.

Wednesday

Sunny, with a high near 79.

Wednesday Night

Mostly clear, with a low around 59.

Thursday

Sunny, with a high near 80.

Thursday Night

Mostly clear, with a low around 59.