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Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
A Few Clouds
82°F
28°C
| Humidity | 55% |
| Wind Speed | SW 7 G 16 mph |
| Barometer | 30.07 in (1017.8 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 84°F (29°C) |
| Last update | 24 Jun 12:53 pm CDT |
Extended Forecast for
3 Miles WSW Mascoutah IL
Flood Watch June 25, 01:00pm until June 26, 07:00am
This Afternoon

High: 83 °F
Partly Sunny
Tonight

Low: 67 °F
Chance
T-stormsThursday

High: 85 °F
Chance
T-stormsThursday Night
Low: 69 °F
T-storms
Likely then
T-stormsFriday

High: 83 °F
T-storms
Friday Night

Low: 69 °F
T-storms
LikelySaturday

High: 87 °F
Showers
LikelySaturday Night

Low: 72 °F
Chance
T-stormsSunday

High: 93 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Partly sunny, with a high near 83. Southwest wind around 6 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 67. Light south wind.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 85. Light and variable wind.
Thursday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 69. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 90%.
Friday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 83. Southwest wind 5 to 7 mph. Chance of precipitation is 80%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 95.
Monday Night
Clear, with a low around 76.
Tuesday
Sunny, with a high near 95.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles WSW Mascoutah IL
38.48°N 89.84°W (Elev. 400 ft)
38.48°N 89.84°W (Elev. 400 ft)
1:21 pm CDT Jun 24, 2026
1pm CDT Jun 24, 2026-6pm CDT Jun 30, 2026



