Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
Partly Cloudy
77°F
25°C
| Humidity | 45% |
| Wind Speed | E 14 mph |
| Barometer | 30.27 in (1024.6 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 2 Aug 12:54 pm CDT |
Extended Forecast for
Byrnes Mill MO
This Afternoon
High: 80 °F
Mostly Sunny
Tonight
Low: 59 °F
Partly Cloudy
Sunday
High: 82 °F
Mostly Sunny
Sunday Night
Low: 62 °F
Partly Cloudy
Monday
High: 83 °F
Partly Sunny
Monday Night
Low: 65 °F
Partly Cloudy
Tuesday
High: 86 °F
Mostly Sunny
then Slight
Chance
T-stormsTuesday Night
Low: 67 °F
Mostly Clear
Wednesday
High: 89 °F
Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 80. Northeast wind around 8 mph.
Tonight
Partly cloudy, with a low around 59. Northeast wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 82. Calm wind becoming northeast around 6 mph in the morning.
Sunday Night
Partly cloudy, with a low around 62. Calm wind.
Monday
Partly sunny, with a high near 83. Light northeast wind.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny, with a high near 94.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Byrnes Mill MO
38.43°N 90.58°W (Elev. 495 ft)
38.43°N 90.58°W (Elev. 495 ft)
12:01 pm CDT Aug 2, 2025
1pm CDT Aug 2, 2025-6pm CDT Aug 8, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
