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.
Fair
67°F
19°C
| Humidity | 93% |
| Wind Speed | S 3 mph |
| Barometer | 29.97 in (1014.4 mb) |
| Dewpoint | 65°F (18°C) |
| Visibility | 10.00 mi |
| Last update | 19 May 3:53 am CDT |
Extended Forecast for
4 Miles S Waterloo IL
Flood Watch May 19, 04:31am until May 19, 01:00pm
NOW until 1:00pm Tue
Flood Watch
Overnight
Low: 65 °F
Slight Chance
ShowersTuesday
High: 78 °F
Showers
Likely then
T-storms
LikelyTuesday Night
Low: 56 °F
Chance
T-stormsWednesday
High: 68 °F
Slight Chance
Showers then
Mostly CloudyWednesday Night
Low: 52 °F
Mostly Cloudy
Thursday
High: 71 °F
Mostly Cloudy
Thursday Night
Low: 57 °F
Chance
Showers then
Showers
LikelyFriday
High: 73 °F
Showers
Detailed Forecast
Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 65. South wind around 8 mph.
Tuesday
Showers and thunderstorms likely, mainly before 2pm. Mostly cloudy, with a high near 78. Southwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms. Cloudy, with a low around 56. North wind 7 to 10 mph. Chance of precipitation is 40%.
Wednesday
A 20 percent chance of showers before 8am. Mostly cloudy, with a high near 68. North wind 8 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 52. Northeast wind around 8 mph.
Thursday
Mostly cloudy, with a high near 71.
Thursday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Friday
Showers and possibly a thunderstorm. High near 73. Chance of precipitation is 80%.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 58.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Memorial Day
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles S Waterloo IL
38.26°N 90.16°W (Elev. 659 ft)
38.26°N 90.16°W (Elev. 659 ft)
2:11 am CDT May 19, 2026
4am CDT May 19, 2026-6pm CDT May 25, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
