Severe Thunderstorms in the Upper Midwest; Heat Continues in the Southwest

Scattered severe thunderstorms may produce damaging winds, large hail, a tornado or two, and heavy rain across parts of the Upper Midwest, mainly this evening through Saturday. Very hot temperatures will continue through today across the Desert Southwest, which could break daily high temperature records. Read More >

Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

73°F

23°C

Humidity	84%
Wind Speed	S 10 mph
Barometer	29.93 in (1012.9 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Last update	8 Aug 5:53 am CDT

More Information:

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

Extended Forecast for

3 Miles SSE Delta IA

Heat Advisory August 8, 12:00pm until August 8, 07:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 92 °F
Sunny
Tonight
Low: 75 °F
Mostly Clear
then Slight
Chance
T-storms
Saturday
High: 91 °F
Chance
T-storms
Saturday Night
Low: 71 °F
Chance
T-storms then
T-storms
Sunday
High: 84 °F
Showers
Likely
Sunday Night
Low: 67 °F
Heavy Rain
Monday
High: 83 °F
Chance
T-storms
Monday Night
Low: 66 °F
Chance
T-storms
Tuesday
High: 84 °F
Partly Sunny

Detailed Forecast

Today

Sunny, with a high near 92. Heat index values as high as 102. South wind 10 to 15 mph, with gusts as high as 25 mph.

Tonight

A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 75. South wind around 15 mph, with gusts as high as 20 mph.

Saturday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 20 mph.

Saturday Night

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 71. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 67. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.

Monday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.

Monday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

Tuesday

Partly sunny, with a high near 84.

Tuesday Night

Partly cloudy, with a low around 66.

Wednesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.

Wednesday Night

Partly cloudy, with a low around 67.