Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

61°F

16°C

Humidity 90%
Wind Speed S 6 mph
Barometer 29.76 in (1007.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 26 Dec 2:53 am CST
Extended Forecast for

Valmeyer IL

  • Overnight

    Overnight: Mostly clear, with a low around 59. South wind around 7 mph.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 71. Southwest wind 5 to 8 mph becoming north in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46. Light and variable wind.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 70. Light southeast wind increasing to 5 to 9 mph in the morning.

    High: 70 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after midnight.  Cloudy, with a low around 62. South wind 6 to 9 mph.

    Low: 62 °F

    Cloudy then
    Slight Chance
    Rain

  • Sunday

    Sunday: Rain, with thunderstorms also possible after 3pm.  High near 73. Chance of precipitation is 80%.

    High: 73 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain likely before midnight, then a slight chance of rain and snow between midnight and 3am, then a slight chance of snow after 3am.  Mostly cloudy, with a low around 21. Chance of precipitation is 60%.

    Low: 21 °F

    Rain Likely
    then Slight
    Chance
    Rain/Snow

  • Monday

    Monday: Sunny, with a high near 30.

    High: 30 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 59. South wind around 7 mph.
Friday
Mostly sunny, with a high near 71. Southwest wind 5 to 8 mph becoming north in the afternoon.
Friday Night
Mostly cloudy, with a low around 46. Light and variable wind.
Saturday
Partly sunny, with a high near 70. Light southeast wind increasing to 5 to 9 mph in the morning.
Saturday Night
A 20 percent chance of rain after midnight. Cloudy, with a low around 62. South wind 6 to 9 mph.
Sunday
Rain, with thunderstorms also possible after 3pm. High near 73. Chance of precipitation is 80%.
Sunday Night
Rain likely before midnight, then a slight chance of rain and snow between midnight and 3am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Monday
Sunny, with a high near 30.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 26.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 22.
New Year's Day
Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Valmeyer IL
 38.31°N 90.3°W (Elev. 397 ft)
3:15 am CST Dec 26, 2025
3am CST Dec 26, 2025-6pm CST Jan 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database