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

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

71°F

22°C

Humidity 100%
Wind Speed N 5 mph
Barometer 29.92 in (1012.6 mb)
Dewpoint 71°F (22°C)
Visibility 8.00 mi
Last update 20 Aug 4:53 am CDT
Extended Forecast for

2 Miles NE Pevely MO

  • Today

    Today: Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 83. Calm wind becoming north around 6 mph in the afternoon.

    High: 83 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 66. Light north wind.

    Low: 66 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 88. Calm wind.

    High: 88 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 86. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 86 °F

    Slight Chance
    Showers

  • Saturday Night

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

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.

    High: 82 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 83. Calm wind becoming north around 6 mph in the afternoon.
Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 66. Light north wind.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 88. Calm wind.
Friday Night
Mostly clear, with a low around 68. Calm wind.
Saturday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 86. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Mostly cloudy, with a low around 63.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Pevely MO
 38.31°N 90.39°W (Elev. 499 ft)
Last Update:
4:26 am CDT Aug 20, 2026
Forecast Valid:
5am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
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