Dangerous Heat and Humidity Building from the Plains to the East Coast

Strengthening high pressure will bring much above normal high and low temperatures. Widespread highs in the 90s to 100 combined with dewpoints surging into the mid and upper 70s will create heat indices as high as 110 through this weekend. In addition, overnight temperatures in the 70s to low 80s will reduce the ability of the body to recover from daytime heating. Read More >

Hazardous Weather Conditions

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Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Mostly Cloudy

71°F

22°C

Humidity	90%
Wind Speed	NE 9 mph
Barometer	29.90 in (1012.0 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Last update	17 Jul 2:54 pm CDT

More Information:

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

Extended Forecast for

Des Moines IA

Excessive Heat Warning until July 20, 07:00pm

Click here for hazard details and duration

Excessive Heat Warning

Excessive Heat Warning until July 20, 07:00pm

NOW until
7:00pm Sat

Excessive Heat Warning
This
Afternoon

Severe
Thunderstorms
High: 91 °F
Tonight

Scattered
T-storms
Low: 78 °F
Thursday

Chance
T-storms then
Sunny
High: 99 °F
Thursday
Night

Mostly Clear
Low: 80 °F
Friday

Hot
High: 99 °F
Friday
Night

Partly Cloudy
Low: 78 °F
Saturday

Mostly Sunny
High: 95 °F
Saturday
Night

Chance
T-storms
Low: 73 °F

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms before 4pm. Some storms could be severe, with large hail and damaging winds. Mostly sunny, with a high near 91. Heat index values as high as 101. South southeast wind around 14 mph, with gusts as high as 21 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Scattered showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 78. South wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny and hot, with a high near 99. Heat index values as high as 110. South southwest wind 10 to 14 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Mostly clear, with a low around 80. South southwest wind around 11 mph, with gusts as high as 25 mph.

Friday

Sunny and hot, with a high near 99. Southwest wind around 11 mph, with gusts as high as 23 mph.

Friday Night

Partly cloudy, with a low around 78.

Saturday

Mostly sunny, with a high near 95.

Saturday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73.

Sunday

Partly sunny, with a high near 90.