Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

80°F

27°C

Humidity 64%
Wind Speed S 6 mph
Barometer 30.01 in (1015.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 26 Aug 8:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: Mostly sunny, with a high near 92. Light and variable wind becoming west 5 to 7 mph in the morning.

    High: 92 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 69. West wind around 6 mph becoming calm  after midnight.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. North wind 3 to 8 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming clear, with a low around 66. North wind 5 to 7 mph becoming calm  in the evening.

    Low: 66 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 92. Light and variable wind becoming west 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 69. West wind around 6 mph becoming calm after midnight.
Thursday
Sunny, with a high near 87. North wind 3 to 8 mph.
Thursday Night
Mostly cloudy, then gradually becoming clear, with a low around 66. North wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 86. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 74.
Monday
Mostly sunny, with a high near 96.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Mostly sunny, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
7:36 am CDT Aug 26, 2026
9am CDT Aug 26, 2026-6pm CDT Sep 1, 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