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Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
77°F
25°C
| Humidity | 88% |
| Wind Speed | E 3 mph |
| Barometer | 30.00 in (1015.4 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 4 Jul 6:53 am CDT |
Extended Forecast for
Crystal City MO
Extreme Heat Warning July 4, 07:25am until July 4, 08:00pm
NOW until 8:00pm Sat
Extreme Heat Warning
Independence Day
High: 94 °F
Chance
T-stormsTonight
Low: 72 °F
Chance
T-stormsSunday
High: 91 °F
Chance
T-stormsSunday Night
Low: 70 °F
Chance
T-stormsMonday
High: 88 °F
Chance
T-stormsMonday Night
Low: 69 °F
Slight Chance
T-stormsTuesday
High: 89 °F
Slight Chance
T-stormsTuesday Night
Low: 69 °F
Mostly Clear
Detailed Forecast
Independence Day
A 50 percent chance of showers and thunderstorms after 10am. Increasing clouds, with a high near 94. Heat index values as high as 106. Light and variable wind becoming west 5 to 7 mph in the morning.
Tonight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind 3 to 6 mph.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 103. Northwest wind 5 to 7 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. Northwest wind around 6 mph becoming calm in the evening.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Light north wind.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Crystal City MO
38.22°N 90.39°W (Elev. 446 ft)
38.22°N 90.39°W (Elev. 446 ft)
6:06 am CDT Jul 4, 2026
7am CDT Jul 4, 2026-6pm CDT Jul 10, 2026
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