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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

68°F

20°C

Humidity 53%
Wind Speed W 7 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 13 May 1:53 am CDT
Extended Forecast for

3 Miles ENE Valmeyer IL

  • Overnight

    Overnight: Mostly cloudy early, then clearing, with a low around 58. Northwest wind around 8 mph.

    Low: 58 °F

    Clearing

  • Wednesday

    Wednesday: Sunny, with a high near 75. Northwest wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 3am. Otherwise, clear, with a low around 44. North wind 5 to 8 mph becoming calm in the evening.

    Low: 44 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, sunny, with a high near 73. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 73 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 57. Southeast wind 7 to 9 mph. Chance of precipitation is 40%.

    Low: 57 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84.

    High: 84 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy early, then clearing, with a low around 58. Northwest wind around 8 mph.
Wednesday
Sunny, with a high near 75. Northwest wind 6 to 13 mph, with gusts as high as 22 mph.
Wednesday Night
Patchy fog after 3am. Otherwise, clear, with a low around 44. North wind 5 to 8 mph becoming calm in the evening.
Thursday
Patchy fog before 9am. Otherwise, sunny, with a high near 73. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Thursday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 57. Southeast wind 7 to 9 mph. Chance of precipitation is 40%.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 70.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 70%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Valmeyer IL
 38.33°N 90.27°W (Elev. 459 ft)
Last Update:
2:01 am CDT May 13, 2026
Forecast Valid:
2am CDT May 13, 2026-6pm CDT May 19, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation