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Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
67°F
19°C
| Humidity | 96% |
| Wind Speed | Calm |
| Barometer | 29.96 in |
| Dewpoint | 66°F (19°C) |
| Visibility | 7.00 mi |
| Last update | 25 Jun 3:15 am CDT |
Extended Forecast for
Gillespie IL
Flood Watch June 25, 01:00pm until June 26, 07:00am
Overnight

Low: 64 °F
Chance
T-stormsThursday

High: 83 °F
Chance
T-stormsThursday Night
Low: 65 °F
Chance
T-storms then
T-stormsFriday

High: 78 °F
Heavy Rain
Friday Night

Low: 66 °F
Showers
LikelySaturday

High: 84 °F
Chance
T-stormsSaturday Night

Low: 70 °F
Chance
T-stormsSunday

High: 92 °F
Sunny
Sunday Night

Low: 73 °F
Mostly Clear
Detailed Forecast
Overnight
A 40 percent chance of showers and thunderstorms, mainly before 5am. Mostly cloudy, with a low around 64. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 83. Light and variable wind.
Thursday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Low around 65. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 90%.
Friday
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could produce heavy rainfall. High near 78. Southeast wind 7 to 9 mph becoming south in the afternoon. Chance of precipitation is 90%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 66. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny, with a high near 94.
Monday Night
Clear, with a low around 74.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Sunny, with a high near 95.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Gillespie IL
39.12°N 89.81°W (Elev. 653 ft)
39.12°N 89.81°W (Elev. 653 ft)
1:51 am CDT Jun 25, 2026
3am CDT Jun 25, 2026-6pm CDT Jul 1, 2026



