Dangerous Surf and Rip Currents for most of the Atlantic Shoreline; Record Heat for the West

Hurricane Erin continues to track northward. Tropical storm force winds, storm surge conditions will increase for the Outer Banks today and portions of coastal Virginia. Life-threatening surf and rip currents along much of the east coast of the U.S. this week. Major to extreme HeatRisk with new record high temperatures are expected for many areas of the western U.S. this week. 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

72°F

22°C

Humidity	97%
Wind Speed	N 6 mph
Barometer	30.10 in (1018.7 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	20 Aug 8:53 am CDT

More Information:

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

Extended Forecast for

4 Miles WSW Union IA

Today
High: 83 °F
Sunny
Tonight
Low: 63 °F
Partly Cloudy
Thursday
High: 80 °F
Patchy Fog
then Sunny
Thursday Night
Low: 60 °F
Mostly Clear
Friday
High: 81 °F
Mostly Sunny
Friday Night
Low: 59 °F
Chance
T-storms
Saturday
High: 74 °F
Sunny
Saturday Night
Low: 51 °F
Mostly Clear
Sunday
High: 69 °F
Sunny

Detailed Forecast

Today

Sunny, with a high near 83. North northeast wind 5 to 7 mph.

Tonight

Partly cloudy, with a low around 63. Northeast wind 3 to 6 mph.

Thursday

Patchy fog before 7am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming east southeast around 5 mph in the morning.

Thursday Night

Mostly clear, with a low around 60. Light and variable wind.

Friday

Mostly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the morning.

Friday Night

A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 59. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Sunny, with a high near 74.

Saturday Night

Mostly clear, with a low around 51.

Sunday

Sunny, with a high near 69.

Sunday Night

Mostly clear, with a low around 47.

Monday

Sunny, with a high near 69.

Monday Night

Partly cloudy, with a low around 45.