Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
70°F
21°C
| Humidity | 59% |
| Wind Speed | SE 6 mph |
| Barometer | 29.76 in (1007.3 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 21 Mar 9:53 pm CDT |
Extended Forecast for
Festus MO
Tonight

Low: 64 °F
Clear
Sunday

High: 91 °F
Increasing
CloudsSunday Night

Low: 38 °F
Decreasing
CloudsMonday

High: 58 °F
Mostly Sunny
Monday Night

Low: 40 °F
Mostly Cloudy
Tuesday

High: 65 °F
Mostly Sunny
Tuesday Night

Low: 45 °F
Mostly Cloudy
Wednesday

High: 76 °F
Partly Sunny
Wednesday Night

Low: 56 °F
Slight Chance
Rain
Detailed Forecast
Tonight
Clear, with a low around 64. South wind around 7 mph.
Sunday
Increasing clouds, with a high near 91. Southwest wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. North wind 10 to 17 mph, with gusts as high as 31 mph.
Monday
Mostly sunny, with a high near 58. Northeast wind 6 to 9 mph.
Monday Night
Mostly cloudy, with a low around 40. Light east wind.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
Partly sunny, with a high near 76.
Wednesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 56.
Thursday
Sunny, with a high near 86.
Thursday Night
A 30 percent chance of rain and thunderstorms. Partly cloudy, with a low around 45.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 59.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
A 20 percent chance of rain. Partly sunny, with a high near 58.
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)
9:51 pm CDT Mar 21, 2026
10pm CDT Mar 21, 2026-6pm CDT Mar 28, 2026


