National Weather Service

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

78°F

26°C

Humidity	79%
Wind Speed	S 3 mph
Barometer	29.92 in (1012.7 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	17 Jun 2:53 am CDT

More Information:

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

Extended Forecast for

Madison IL

Overnight
Low: 76 °F
Mostly Clear
Monday
High: 96 °F
Sunny then
Slight Chance
T-storms
Monday Night
Low: 75 °F
Mostly Cloudy
Tuesday
High: 93 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 75 °F
Partly Cloudy
Juneteenth
High: 94 °F
Mostly Sunny
Wednesday Night
Low: 74 °F
Partly Cloudy
Thursday
High: 97 °F
Hot
Thursday Night
Low: 75 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 76. South wind around 7 mph.

Monday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Heat index values as high as 102. South wind 7 to 16 mph, with gusts as high as 23 mph.

Monday Night

Mostly cloudy, with a low around 75. South wind 9 to 14 mph, with gusts as high as 23 mph.

Tuesday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. South wind 9 to 14 mph, with gusts as high as 24 mph.

Tuesday Night

Partly cloudy, with a low around 75. South wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 21 mph.

Juneteenth

Mostly sunny, with a high near 94.

Wednesday Night

Partly cloudy, with a low around 74.

Thursday

Mostly sunny and hot, with a high near 97.