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 Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Overcast
70°F
21°C
| Humidity | 83% |
| Wind Speed | N 13 mph |
| Barometer | 30.06 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Last update | 19 May 7:45 pm CDT |
Extended Forecast for
Troy IL
Tonight
Low: 56 °F
Chance
T-stormsWednesday
High: 63 °F
Cloudy
Wednesday Night
Low: 52 °F
Mostly Cloudy
Thursday
High: 71 °F
Partly Sunny
Thursday Night
Low: 57 °F
Chance
Showers then
Showers
LikelyFriday
High: 72 °F
Showers
Friday Night
Low: 58 °F
Chance
ShowersSaturday
High: 79 °F
Partly Sunny
then Slight
Chance
T-stormsSaturday Night
Low: 60 °F
Chance
Showers
Detailed Forecast
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Cloudy, with a low around 56. North wind 8 to 10 mph.
Wednesday
Cloudy, with a high near 63. Northeast wind 9 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 52. Northeast wind around 7 mph.
Thursday
Partly sunny, with a high near 71. Northeast wind 8 to 11 mph.
Thursday Night
Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 57. East wind 8 to 10 mph. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm. High near 72. Chance of precipitation is 80%.
Friday Night
A 30 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 chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Memorial Day
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Troy IL
38.72°N 89.89°W (Elev. 551 ft)
38.72°N 89.89°W (Elev. 551 ft)
5:31 pm CDT May 19, 2026
8pm CDT May 19, 2026-6pm CDT May 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
