Severe Thunderstorms; Excessive Rainfall; Dangerous Heat; Air Quality Concerns and the Tropics

Wildfire smoke will push into the Midwest, worsening air quality. A frontal system brings severe storms from the Northern Plains to the Mid‑Atlantic the next few days. Heavy Gulf Coast rain is possible as Tropical Depression Two has formed, while monsoonal storms persist in the Southwest with heavy rainfall. Hazardous heat expands from the Plains into the Lower Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Mostly Cloudy

84°F

29°C

Humidity	53%
Wind Speed	Vrbl 5 mph
Barometer	30.00 in (1015.1 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	19 Jul 1:54 pm CDT

More Information:

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

Extended Forecast for

Norwalk IA

Heat Advisory July 20, 12:00pm until July 20, 08:00pm

Click here for hazard details and duration

Heat Advisory

This Afternoon
High: 89 °F
Patchy Smoke
Tonight
Low: 70 °F
Patchy Smoke
Monday
High: 97 °F
Hot
Monday Night
Low: 73 °F
Partly Cloudy
then Showers
Likely
Tuesday
High: 86 °F
Sunny then
Sunny and
Breezy
Tuesday Night
Low: 63 °F
Mostly Clear
Wednesday
High: 81 °F
Mostly Sunny
Wednesday Night
Low: 61 °F
Mostly Cloudy
then Slight
Chance
Showers
Thursday
High: 80 °F
Partly Sunny

Detailed Forecast

This Afternoon

Patchy smoke. Mostly sunny, with a high near 89. East wind around 7 mph.

Tonight

Patchy smoke before 1am. Partly cloudy, with a low around 70. East wind around 7 mph becoming south southeast after midnight.

Monday

Mostly sunny and hot, with a high near 97. Heat index values as high as 108. Southwest wind 7 to 13 mph, with gusts as high as 18 mph.

Monday Night

A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 73. Southwest wind 7 to 10 mph becoming north northwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday

Sunny, with a high near 86. Breezy, with a north northwest wind 8 to 16 mph, with gusts as high as 24 mph.

Tuesday Night

Mostly clear, with a low around 63.

Wednesday

Mostly sunny, with a high near 81.

Wednesday Night

A 20 percent chance of showers after 1am. Partly cloudy, with a low around 61.

Thursday

Partly sunny, with a high near 80.

Thursday Night

A 40 percent chance of showers. Mostly cloudy, with a low around 63.