Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
82°F
28°C
| Humidity | 79% |
| Wind Speed | S 8 mph |
| Barometer | 30.07 in |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 89°F (32°C) |
| Last update | 18 Aug 8:50 am CDT |
Extended Forecast for
Saint Jacob IL
Heat Advisory August 18, 09:34am until August 18, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Today
High: 93 °F
Sunny
Tonight
Low: 73 °F
Mostly Clear
Tuesday
High: 92 °F
Chance
Showers then
Chance
T-stormsTuesday Night
Low: 72 °F
Chance
T-stormsWednesday
High: 87 °F
Chance
T-stormsWednesday Night
Low: 65 °F
Partly Cloudy
Thursday
High: 85 °F
Mostly Sunny
Thursday Night
Low: 64 °F
Mostly Clear
Detailed Forecast
Today
Sunny, with a high near 93. Heat index values as high as 105. South wind around 7 mph.
Tonight
Mostly clear, with a low around 73. Light southeast wind.
Tuesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 72. Light north wind. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87. Light north wind increasing to 5 to 10 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 86.
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:
Saint Jacob IL
38.72°N 89.77°W (Elev. 499 ft)
38.72°N 89.77°W (Elev. 499 ft)
8:46 am CDT Aug 18, 2025
9am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
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