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

58°F

14°C

Humidity 93%
Wind Speed Calm
Barometer 29.86 in (1011.1 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 21 Nov 12:53 pm CST
Extended Forecast for

2 Miles E Valmeyer IL

  • This Afternoon

    This Afternoon: A chance of rain, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 59. East wind around 5 mph. Chance of precipitation is 40%.

    High: 59 °F

    Chance Rain

  • Tonight

    Tonight: A 30 percent chance of rain between midnight and 3am. Patchy fog between 8pm and midnight. Otherwise, cloudy, with a low around 46. Light northeast wind becoming north 5 to 9 mph in the evening.

    Low: 46 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 57. North wind 5 to 8 mph becoming west in the afternoon.

    High: 57 °F

    Gradual
    Clearing

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40. West wind around 6 mph becoming calm after midnight.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63. Light and variable wind.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Rain likely, mainly after noon. Cloudy, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Chance Rain
    then Rain
    Likely

  • Monday Night

    Monday Night: Rain and possibly a thunderstorm before midnight, then a chance of rain. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Rain then
    Chance Rain

  • Tuesday

    Tuesday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A chance of rain, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 59. East wind around 5 mph. Chance of precipitation is 40%.
Tonight
A 30 percent chance of rain between midnight and 3am. Patchy fog between 8pm and midnight. Otherwise, cloudy, with a low around 46. Light northeast wind becoming north 5 to 9 mph in the evening.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 57. North wind 5 to 8 mph becoming west in the afternoon.
Saturday Night
Mostly clear, with a low around 40. West wind around 6 mph becoming calm after midnight.
Sunday
Sunny, with a high near 63. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Rain likely, mainly after noon. Cloudy, with a high near 59. Chance of precipitation is 70%.
Monday Night
Rain and possibly a thunderstorm before midnight, then a chance of rain. Low around 51. Chance of precipitation is 80%.
Tuesday
Partly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 29.
Thanksgiving Day
Mostly sunny, with a high near 46.
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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:
11:11 am CST Nov 21, 2025
Forecast Valid:
1pm CST Nov 21, 2025-6pm CST Nov 27, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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