
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.
Light Rain
77°F
25°C
| Humidity | 62% |
| Wind Speed | S 6 mph |
| Barometer | 29.79 in (1008.3 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 16 May 2:53 am CDT |
Extended Forecast for
2 Miles WSW O'Fallon IL
Overnight

Low: 69 °F
Chance
ShowersSaturday
High: 84 °F
Showers then
Chance
T-stormsSaturday Night

Low: 66 °F
Partly Cloudy
Sunday

High: 89 °F
Sunny
Sunday Night

Low: 70 °F
Partly Cloudy
Monday
High: 89 °F
Breezy.
Partly Sunny
then Chance
T-stormsMonday Night
Low: 72 °F
Slight Chance
T-storms then
Chance
ShowersTuesday

High: 87 °F
Showers
Tuesday Night

Low: 62 °F
Showers
Likely
Detailed Forecast
Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 69. South wind around 8 mph.
Saturday
Showers and thunderstorms, mainly before 2pm. High near 84. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Saturday Night
Partly cloudy, with a low around 66. Southeast wind around 8 mph.
Sunday
Sunny, with a high near 89. South wind 10 to 18 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 70. South wind 14 to 16 mph, with gusts as high as 24 mph.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Breezy.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72.
Tuesday
Showers and possibly a thunderstorm. High near 87. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 74.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 55.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles WSW O'Fallon IL
38.59°N 89.95°W (Elev. 545 ft)
38.59°N 89.95°W (Elev. 545 ft)
1:25 am CDT May 16, 2026
3am CDT May 16, 2026-6pm CDT May 22, 2026



