National Weather Service

News Headlines

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

77°F

25°C

Humidity	51%
Wind Speed	NE 8 mph
Barometer	30.15 in
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	3 Aug 11:45 am CDT

More Information:

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

Extended Forecast for

Glen Carbon ILSimilar City Names

This Afternoon
High: 81 °F
Mostly Sunny
Tonight
Low: 65 °F
Mostly Cloudy
Monday
High: 81 °F
Mostly Cloudy
then Chance
T-storms
Monday Night
Low: 67 °F
Slight Chance
T-storms
Tuesday
High: 84 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 68 °F
Mostly Clear
Wednesday
High: 87 °F
Mostly Sunny
Wednesday Night
Low: 69 °F
Mostly Clear
Thursday
High: 88 °F
Sunny

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 81. Northeast wind around 8 mph.

Tonight

Mostly cloudy, with a low around 65. Northeast wind 3 to 6 mph.

Monday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. East wind 5 to 7 mph.

Monday Night

A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. East wind around 6 mph becoming calm in the evening.

Tuesday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Calm wind becoming east around 6 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 68.

Wednesday

Mostly sunny, with a high near 87.

Wednesday Night

Mostly clear, with a low around 69.

Thursday

Sunny, with a high near 88.

Thursday Night

Mostly clear, with a low around 70.