Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
90°F
32°C
| Humidity | 71% |
| Wind Speed | SE 6 mph |
| Barometer | 29.99 in |
| Dewpoint | 79°F (26°C) |
| Visibility | 10.00 mi |
| Heat Index | 107°F (42°C) |
| Last update | 17 Aug 5:50 pm CDT |
Extended Forecast for
4 Miles NNE Troy IL
Heat Advisory August 17, 06:15pm until August 18, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Tonight
Low: 77 °F
Partly Cloudy
Monday
High: 94 °F
Mostly Sunny
then Slight
Chance
T-stormsMonday Night
Low: 74 °F
Chance
Showers then
Slight Chance
T-stormsTuesday
High: 91 °F
Chance
T-stormsTuesday Night
Low: 72 °F
Chance
T-storms then
Chance
ShowersWednesday
High: 85 °F
Slight Chance
T-stormsWednesday Night
Low: 66 °F
Partly Cloudy
Thursday
High: 85 °F
Mostly Sunny
Detailed Forecast
Tonight
Partly cloudy, with a low around 77. East wind 5 to 7 mph becoming light and variable after midnight.
Monday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 94. Heat index values as high as 105. Southeast wind 3 to 6 mph.
Monday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 101. Calm wind becoming west around 6 mph in the morning.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 85. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 81.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles NNE Troy IL
38.79°N 89.88°W (Elev. 551 ft)
38.79°N 89.88°W (Elev. 551 ft)
5:31 pm CDT Aug 17, 2025
6pm CDT Aug 17, 2025-6pm CDT Aug 24, 2025
Additional Resources
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