Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

64°F

18°C

Humidity 96%
Wind Speed W 3 mph
Barometer 30.00 in (1014.9 mb)
Dewpoint 63°F (17°C)
Visibility 8.00 mi
Last update 27 Aug 4:54 am CDT
Extended Forecast for

Saint Peters MO

  • Today

    Today: Sunny, with a high near 85. Calm wind becoming north 5 to 7 mph in the morning.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. North wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. Light north wind.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Calm wind becoming south around 6 mph in the morning.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 96.

    High: 96 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 85. Calm wind becoming north 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 62. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 86. Light north wind.
Friday Night
Mostly clear, with a low around 63. Calm wind.
Saturday
Mostly sunny, with a high near 89. Calm wind becoming south around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 75.
Monday
Mostly sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Mostly sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Peters MO
 38.78°N 90.59°W (Elev. 492 ft)
4:31 am CDT Aug 27, 2026
5am CDT Aug 27, 2026-6pm CDT Sep 2, 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