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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fog/Mist

49°F

9°C

Humidity 90%
Wind Speed Calm
Barometer 30.20 in (1022.7 mb)
Dewpoint 46°F (8°C)
Visibility 6.00 mi
Last update 19 Nov 11:53 am CST
Extended Forecast for

2 Miles E Valmeyer IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 54. Light east wind.

    High: 54 °F

    Cloudy

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 5am. Cloudy, with a low around 47. Southeast wind 3 to 5 mph.

    Low: 47 °F

    Cloudy then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 60. Southeast wind 5 to 8 mph. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 9pm, then showers between 9pm and midnight, then rain after midnight. Low around 55. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 55 °F

    Showers

  • Friday

    Friday: Rain, with thunderstorms also possible after 3pm. High near 62. East wind 5 to 7 mph. Chance of precipitation is 90%.

    High: 62 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 54. Light east wind.
Tonight
A 30 percent chance of showers, mainly after 5am. Cloudy, with a low around 47. Southeast wind 3 to 5 mph.
Thursday
Showers likely before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 60. Southeast wind 5 to 8 mph. Chance of precipitation is 60%.
Thursday Night
Showers and possibly a thunderstorm before 9pm, then showers between 9pm and midnight, then rain after midnight. Low around 55. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.
Friday
Rain, with thunderstorms also possible after 3pm. High near 62. East wind 5 to 7 mph. Chance of precipitation is 90%.
Friday Night
A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
A 20 percent chance of rain after midnight. Partly cloudy, with a low around 44.
Monday
A 30 percent chance of rain. Partly sunny, with a high near 61.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 46.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Valmeyer IL
 38.31°N 90.27°W (Elev. 699 ft)
Last Update:
11:06 am CST Nov 19, 2025
Forecast Valid:
1pm CST Nov 19, 2025-6pm CST Nov 25, 2025
 
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