National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

86°F

30°C

Humidity 59%
Wind Speed E 9 mph
Barometer 30.04 in (1016.9 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 26 Jul 5:53 pm CDT
Extended Forecast for

Mascoutah IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. East wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. Calm wind becoming southeast 5 to 8 mph in the morning. Chance of precipitation is 30%.

    High: 85 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southeast wind 3 to 7 mph.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 85. South wind 5 to 9 mph. Chance of precipitation is 70%.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 72. South wind 5 to 7 mph.

    Low: 72 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 66. East wind around 6 mph becoming calm in the evening.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. Calm wind becoming southeast 5 to 8 mph in the morning. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southeast wind 3 to 7 mph.
Sunday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 85. South wind 5 to 9 mph. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 72. South wind 5 to 7 mph.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Mascoutah IL
 38.52°N 89.81°W (Elev. 423 ft)
Last Update:
5:22 pm CDT Jul 26, 2024
Forecast Valid:
6pm CDT Jul 26, 2024-6pm CDT Aug 2, 2024
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation