Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

77°F

25°C

Humidity 74%
Wind Speed Calm
Barometer 29.99 in (1014.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 10 Sep 6:51 pm CDT
Extended Forecast for

3 Miles N East Carondelet IL

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, cloudy, with a low around 69. Light northeast wind.

    Low: 69 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: A 30 percent chance of showers, mainly between 11am and 4pm.  Patchy fog before 8am.  Otherwise, mostly cloudy, with a high near 83. Calm wind becoming southeast around 5 mph.

    High: 83 °F

    Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Partly cloudy, with a low around 69. Light south wind.

    Low: 69 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 1pm.  Mostly sunny, with a high near 90. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, cloudy, with a low around 69. Light northeast wind.
Friday
A 30 percent chance of showers, mainly between 11am and 4pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 83. Calm wind becoming southeast around 5 mph.
Friday Night
Partly cloudy, with a low around 69. Light south wind.
Saturday
Mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 70. Calm wind.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 70.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Wednesday
A 40 percent chance of showers. Mostly sunny, with a high near 89.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N East Carondelet IL
 38.58°N 90.23°W (Elev. 515 ft)
5:41 pm CDT Sep 10, 2026
7pm CDT Sep 10, 2026-6pm CDT Sep 17, 2026
 
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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