Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Mostly Cloudy and Breezy

88°F

31°C

Humidity	68%
Wind Speed	S 24 G 38 mph
Barometer	29.74 in (1006.1 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	99°F (37°C)
Last update	29 Jun 3:53 pm CDT

More Information:

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

Extended Forecast for

4 Miles NNW Haverhill IA

Extreme Heat Warning June 29, 04:42pm until July 1, 10:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning June 29, 04:42pm until July 1, 10:00pm
NOW until 10:00pm Wed
Extreme Heat Warning
This Afternoon
High: 93 °F
Sunny and
Windy
Tonight
Low: 76 °F
Partly Cloudy
and Windy
then Partly
Cloudy
Tuesday
High: 94 °F
Sunny and
Breezy
Tuesday Night
Low: 74 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 93 °F
Sunny then
Mostly Sunny
and Breezy
Wednesday Night
Low: 75 °F
Partly Cloudy
then Chance
T-storms
Thursday
High: 91 °F
Chance
T-storms then
Chance
Showers
Thursday Night
Low: 72 °F
Chance
T-storms

Detailed Forecast

This Afternoon

Sunny, with a high near 93. Heat index values as high as 107. Windy, with a south wind around 23 mph, with gusts as high as 33 mph.

Tonight

Partly cloudy, with a low around 76. Windy, with a south wind 14 to 21 mph, with gusts as high as 32 mph.

Tuesday

Sunny, with a high near 94. Heat index values as high as 105. Breezy, with a south southwest wind 14 to 17 mph, with gusts as high as 26 mph.

Tuesday Night

A 40 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 74. South southwest wind 11 to 13 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

Sunny, with a high near 93. Breezy, with a south southwest wind 11 to 17 mph, with gusts as high as 26 mph.

Wednesday Night

A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91.

Thursday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

Friday

Mostly sunny, with a high near 90.

Friday Night

Partly cloudy, with a low around 71.

Independence Day

Mostly sunny, with a high near 90.

Saturday Night

A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.