Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Overcast

70°F

21°C

Humidity	82%
Wind Speed	SW 8 mph
Barometer	30.02 in (1015.9 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Last update	18 Aug 4:54 am CDT

More Information:

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

Extended Forecast for

Norwalk IA

Overnight
Low: 66 °F
Slight Chance
T-storms
Tuesday
High: 80 °F
Showers
Likely then
Chance
T-storms
Tuesday Night
Low: 65 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 79 °F
Decreasing
Clouds
Wednesday Night
Low: 62 °F
Slight Chance
T-storms then
Partly Cloudy
Thursday
High: 80 °F
Sunny
Thursday Night
Low: 64 °F
Mostly Clear
then Slight
Chance
T-storms
Friday
High: 83 °F
Slight Chance
T-storms
Friday Night
Low: 65 °F
Mostly Clear
then Chance
T-storms

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. South wind around 5 mph.

Tuesday

A chance of showers and thunderstorms before 10am, then showers likely and possibly a thunderstorm between 10am and 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 80. West wind 5 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 65. West northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

Mostly cloudy, then gradually becoming sunny, with a high near 79. East northeast wind 3 to 6 mph.

Wednesday Night

A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 62. East northeast wind around 5 mph becoming calm in the evening.

Thursday

Sunny, with a high near 80.

Thursday Night

A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 64.

Friday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.

Friday Night

A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 65.

Saturday

Sunny, with a high near 80.

Saturday Night

Mostly clear, with a low around 62.