NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment
After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >
Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fog/Mist
66°F
19°C
| Humidity | 100% |
| Wind Speed | Calm |
| Barometer | 30.05 in (1017.1 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 5.00 mi |
| Last update | 28 May 6:53 am CDT |
Extended Forecast for
Valmeyer IL
Today
High: 84 °F
Patchy Fog
then Partly
SunnyTonight
Low: 65 °F
Mostly Cloudy
Friday
High: 79 °F
Chance
ShowersFriday Night
Low: 63 °F
Chance
ShowersSaturday
High: 81 °F
Slight Chance
Showers then
Slight Chance
T-stormsSaturday Night
Low: 63 °F
Mostly Cloudy
Sunday
High: 82 °F
Mostly Sunny
Sunday Night
Low: 62 °F
Partly Cloudy
then Slight
Chance
T-stormsMonday
High: 84 °F
Mostly Sunny
Detailed Forecast
Today
Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Calm wind becoming east 5 to 8 mph in the morning.
Tonight
Mostly cloudy, with a low around 65. East wind 5 to 7 mph.
Friday
A 30 percent chance of showers, mainly between 8am and 4pm. Mostly cloudy, with a high near 79. East wind around 6 mph.
Friday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 63. East wind around 6 mph becoming calm in the evening.
Saturday
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Partly sunny, with a high near 81. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 82.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Valmeyer IL
38.31°N 90.3°W (Elev. 397 ft)
38.31°N 90.3°W (Elev. 397 ft)
6:01 am CDT May 28, 2026
7am CDT May 28, 2026-6pm CDT Jun 3, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
