Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

82°F

28°C

Humidity	55%
Wind Speed	E 8 mph
Barometer	30.06 in
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	25 Aug 1:50 pm CDT

More Information:

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

Extended Forecast for

Glen Carbon IL

This Afternoon
High: 86 °F
Mostly Sunny
Tonight
Low: 69 °F
Mostly Cloudy
Wednesday
High: 90 °F
Mostly Sunny
Wednesday Night
Low: 65 °F
Chance
T-storms then
Mostly Clear
Thursday
High: 87 °F
Sunny
Thursday Night
Low: 65 °F
Mostly Clear
Friday
High: 86 °F
Sunny
Friday Night
Low: 62 °F
Clear
Saturday
High: 88 °F
Sunny

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 86. East wind around 6 mph.

Tonight

Mostly cloudy, with a low around 69. East wind around 5 mph becoming calm in the evening.

Wednesday

Mostly sunny, with a high near 90. Calm wind becoming west 5 to 8 mph in the morning.

Wednesday Night

A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 65. West wind around 6 mph becoming calm in the evening.

Thursday

Sunny, with a high near 87. Light north wind increasing to 5 to 9 mph in the morning.

Thursday Night

Mostly clear, with a low around 65.

Friday

Sunny, with a high near 86.

Friday Night

Clear, with a low around 62.

Saturday

Sunny, with a high near 88.

Saturday Night

Mostly clear, with a low around 67.