Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

86°F

30°C

Humidity 57%
Wind Speed SE 8 mph
Barometer 30.06 in (1017.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 5 Aug 12:53 pm CDT
Extended Forecast for

Lemay MO

Flood Watch August 5, 10:00pm until August 6, 10:00am
Click here for hazard details and duration
Flood Watch
  • This Afternoon

    This Afternoon: Partly sunny, with a high near 92. South wind around 6 mph.

    High: 92 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 4am.  Mostly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm  after midnight.  Chance of precipitation is 60%.

    Low: 73 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 1pm.  Mostly cloudy, with a high near 85. Calm wind becoming south around 5 mph.  Chance of precipitation is 70%.

    High: 85 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 9pm.  Partly cloudy, then becoming cloudy toward daybreak, with a low around 72. Light and variable wind.

    Low: 72 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 87. Southwest wind 3 to 5 mph.

    High: 87 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 92. South wind around 6 mph.
Tonight
Showers and thunderstorms likely, mainly after 4am. Mostly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 85. Calm wind becoming south around 5 mph. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 9pm. Partly cloudy, then becoming cloudy toward daybreak, with a low around 72. Light and variable wind.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Southwest wind 3 to 5 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 77.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Lemay MO
 38.53°N 90.29°W (Elev. 456 ft)
1:26 pm CDT Aug 5, 2026
1pm CDT Aug 5, 2026-6pm CDT Aug 11, 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