Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89° N Lon: 90.03° W Elev: 518 ft.

Fair

70°F

21°C

Humidity	83%
Wind Speed	SE 7 mph
Barometer	30.05 in
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Last update	15 Sep 6:50 am CDT

More Information:

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

Detailed forecast for

Macoupin County

Today

Sunny. A chance of showers and thunderstorms this afternoon. Warmer with highs in the upper 90s. Southwest winds 10 to 15 mph. Chance of rain 50 percent. Heat index values up to 105.

Tonight

Mostly cloudy with a chance of showers and thunderstorms. Lows around 70. Southeast winds around 5 mph, becoming northeast after midnight. Chance of rain 50 percent.

Wednesday

Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly sunny in the afternoon. Humid with highs in the lower 90s. Northeast winds around 5 mph, becoming southeast in the afternoon. Chance of rain 40 percent. Heat index values up to 103 in the afternoon.

Wednesday Night

Partly cloudy in the evening, then clearing. Lows in the lower 70s. Southeast winds around 5 mph. Heat index values up to 100 early in the evening.

Thursday

Sunny. Highs in the mid 90s. Southwest winds around 5 mph, becoming northwest in the afternoon. Heat index values up to 103.

Thursday Night

Partly cloudy in the evening, then becoming mostly clear. Lows around 70.

Friday

Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent.

Friday Night

Mostly clear. Lows around 70.

Saturday

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent.