Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fog
38°F
3°C
| Humidity | 97% |
| Wind Speed | E 7 mph |
| Barometer | 30.14 in |
| Dewpoint | 38°F (3°C) |
| Visibility | 0.50 mi |
| Wind Chill | 33°F (1°C) |
| Last update | 3 Mar 1:15 am CST |
Extended Forecast for
Troy ILSimilar City Names
Overnight

Low: 37 °F
Showers and
Patchy FogTuesday

High: 57 °F
Showers and
Patchy FogTuesday Night

Low: 48 °F
Showers
Wednesday

High: 64 °F
Showers
Wednesday Night

Low: 55 °F
Showers
Thursday
High: 69 °F
Showers
Likely then
Chance
ShowersThursday Night
Low: 56 °F
Chance
Showers then
Showers
LikelyFriday
High: 78 °F
Chance
T-storms then
Slight Chance
Showers and
BreezyFriday Night
Low: 59 °F
Chance
Showers then
Showers
Detailed Forecast
Overnight
A chance of showers, then showers and possibly a thunderstorm after 3am. Patchy fog after 3am. Low around 37. East wind 3 to 5 mph. Chance of precipitation is 90%.
Tuesday
Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. Patchy fog before 10am. High near 57. East wind 5 to 7 mph becoming northeast in the afternoon. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 48. East wind 6 to 8 mph. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 64. East wind 5 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 55. South wind 5 to 7 mph. Chance of precipitation is 90%.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.
Thursday Night
A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 78. Breezy. Chance of precipitation is 40%.
Friday Night
A chance of showers, then showers and possibly a thunderstorm after midnight. Low around 59. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm before noon, then a slight chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 49.
Monday
A 20 percent chance of showers. Sunny, with a high near 72.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Troy ILSimilar City Names
38.72°N 89.89°W (Elev. 551 ft)
38.72°N 89.89°W (Elev. 551 ft)
12:26 am CST Mar 3, 2026
1am CST Mar 3, 2026-6pm CDT Mar 9, 2026



