Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fog/Mist
45°F
7°C
| Humidity | 93% |
| Wind Speed | S 6 mph |
| Barometer | 30.17 in |
| Dewpoint | 43°F (6°C) |
| Visibility | 5.00 mi |
| Wind Chill | 42°F (6°C) |
| Last update | 23 Nov 5:50 pm CST |
Extended Forecast for
Troy ILSimilar City Names
Dense Fog Advisory November 23, 06:00pm until November 24, 09:00am
Tonight

Low: 43 °F
Dense Fog
Monday
High: 58 °F
Dense Fog
then Rain
LikelyMonday Night
Low: 50 °F
Rain and
Patchy Fog
then Rain
Likely and
Areas FogTuesday
High: 61 °F
Mostly Cloudy
then Slight
Chance RainTuesday Night

Low: 36 °F
Partly Cloudy
Wednesday
High: 45 °F
Sunny then
Mostly Sunny
and BreezyWednesday Night

Low: 27 °F
Partly Cloudy
Thanksgiving Day

High: 43 °F
Sunny
Thursday Night

Low: 26 °F
Partly Cloudy
Detailed Forecast
Tonight
Widespread dense fog, mainly after 2am. Otherwise, cloudy, with a low around 43. South wind 3 to 6 mph.
Monday
Rain likely, mainly after 4pm. Widespread dense fog, mainly before 7am. Otherwise, cloudy, with a high near 58. Southeast wind 6 to 9 mph. Chance of precipitation is 60%.
Monday Night
Rain. Patchy fog between 7pm and 1am. Low around 50. Southeast wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 90%.
Tuesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 61. Calm wind becoming west 5 to 8 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 36. West wind 6 to 16 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 45. Breezy.
Wednesday Night
Partly cloudy, with a low around 27.
Thanksgiving Day
Sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 43.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 50%.
Saturday Night
Rain likely. Cloudy, with a low around 36. Chance of precipitation is 60%.
Sunday
Rain likely. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.
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)
5:46 pm CST Nov 23, 2025
5pm CST Nov 23, 2025-6pm CST Nov 30, 2025



