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Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
81°F
27°C
| Humidity | 79% |
| Wind Speed | Vrbl 3 mph |
| Barometer | 30.09 in (1018.6 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 2 Jul 7:53 am CDT |
Extended Forecast for
Festus MO
Extreme Heat Warning July 2, 08:48am until July 3, 10:00pm
NOW until 10:00pm Fri
Extreme Heat Warning
Today
High: 96 °F
Sunny then
Slight Chance
T-stormsTonight
Low: 76 °F
Slight Chance
T-storms then
Mostly ClearFriday

High: 97 °F
Hot
Friday Night

Low: 75 °F
Mostly Clear
Independence Day
High: 96 °F
Sunny then
Chance
T-stormsSaturday Night

Low: 73 °F
Chance
ShowersSunday

High: 94 °F
Chance
T-stormsSunday Night

Low: 72 °F
Partly Cloudy
Detailed Forecast
Today
A 20 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 96. Heat index values as high as 112. Calm wind becoming south around 6 mph in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Light south wind.
Friday
Sunny and hot, with a high near 97. Heat index values as high as 110. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 75. Light south wind.
Independence Day
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Light southwest wind.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94.
Sunday Night
Partly cloudy, with a low around 72.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Monday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Festus MO
38.22°N 90.39°W (Elev. 446 ft)
38.22°N 90.39°W (Elev. 446 ft)
8:21 am CDT Jul 2, 2026
8am CDT Jul 2, 2026-6pm CDT Jul 8, 2026



