The Weather Hazard Threefold

A large dome of high pressure will continue the sweltering heat in parts of the West and the central Plains. Meanwhile, a cold front will produce severe thunderstorms, capable of all hazards, the next few days from the Mid-Upper Mississippi Valley into the Ohio Valley and Great Lakes. Finally, Potential Tropical Cyclone Three will bring heavy rain and flooding to the northern Gulf Coast. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

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

Fair

84°F

29°C

Humidity 70%
Wind Speed SE 8 mph
Barometer 29.91 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 17 Jun 8:50 pm CDT
Detailed forecast for

Macoupin County

Tonight
Warmer. Mostly clear. Low in the mid 70s. South wind around 10 mph.
Friday
Hot and humid. Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. High around 100. Highest heat index readings of around 106 in the late morning and afternoon. Southwest wind 10 to 15 mph with gusts to around 25 mph.
Friday Night
Partly cloudy with a 40 percent chance of showers and thunderstorms. Low in the mid 70s. Highest heat index readings of around 100 early in the evening. Southwest wind around 10 mph.
Saturday
Hot. Partly cloudy with a 30 percent chance of showers and thunderstorms. High in the 90s. Southwest wind around 10 mph.
Saturday Night
Partly cloudy with a 20 percent chance of showers and thunderstorms. Low in the lower 70s. Light wind.
Sunday
Partly cloudy with a 30 percent chance of showers and thunderstorms. High in the mid 90s.
Sunday Night
Partly cloudy with a 40 percent chance of showers and thunderstorms. Low in the lower 70s.
Monday And Monday Night
Partly cloudy. A 30 percent chance of showers and thunderstorms. High in the mid 80s. Low in the mid 50s.
Tuesday Through Wednesday
Mostly clear. High in the upper 70s. Low in the mid 50s.
Wednesday Night
Mostly clear with a 20 percent chance of showers. Low around 60.
Thursday
Partly cloudy with a 30 percent chance of showers. High in the mid 80s.



Click Map For Forecast
836 PM CDT Thu Jun 17 2021
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database