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.

Fog/Mist

72°F

22°C

Humidity	97%
Wind Speed	E 5 mph
Barometer	30.00 in (1015.0 mb)
Dewpoint	71°F (22°C)
Visibility	5.00 mi
Last update	17 Aug 5:53 am CDT

More Information:

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

Extended Forecast for

5 Miles ENE Clemons IA

Today
High: 91 °F
Sunny
Tonight
Low: 72 °F
Mostly Clear
then Slight
Chance
T-storms
Monday
High: 89 °F
Chance
T-storms
Monday Night
Low: 69 °F
Chance
T-storms
Tuesday
High: 83 °F
Slight Chance
T-storms then
Mostly Sunny
Tuesday Night
Low: 62 °F
Partly Cloudy
Wednesday
High: 79 °F
Mostly Sunny
Wednesday Night
Low: 59 °F
Mostly Clear
Thursday
High: 80 °F
Sunny

Detailed Forecast

Today

Sunny, with a high near 91. Heat index values as high as 103. South wind 3 to 7 mph.

Tonight

A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 72. South southeast wind around 6 mph.

Monday

A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 102. South wind 6 to 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. West southwest wind 3 to 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 83. North wind 5 to 7 mph. Chance of precipitation is 10%.

Tuesday Night

Partly cloudy, with a low around 62.

Wednesday

Mostly 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 60.