Hazardous Weather Conditions
Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
Light Rain
59°F
15°C
| Humidity | 93% |
| Wind Speed | SE 9 mph |
| Barometer | 29.78 in (1008.0 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 7 Mar 6:54 am CST |
Extended Forecast for
Byrnes Mill MO
Flood Warning March 7, 07:22am until March 9, 04:16pm
NOW until 4:16pm Mon
Flood Warning
Today
High: 65 °F⇓
Rain then
Mostly CloudyTonight

Low: 37 °F
Decreasing
CloudsSunday

High: 68 °F
Sunny
Sunday Night

Low: 48 °F
Clear
Monday

High: 80 °F
Sunny
Monday Night
Low: 60 °F
Mostly Clear
then Chance
RainTuesday

High: 80 °F
Rain Likely
Tuesday Night

Low: 53 °F
Rain
Detailed Forecast
Today
Rain and possibly a thunderstorm before 9am, then a chance of rain between 9am and 11am. Temperature rising to near 65 by 10am, then falling to around 56 during the remainder of the day. South wind 7 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 37. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 68. Calm wind becoming southwest around 6 mph in the morning.
Sunday Night
Clear, with a low around 48. Southwest wind 3 to 5 mph.
Monday
Sunny, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 22 mph.
Monday Night
A 30 percent chance of rain and thunderstorms after midnight. Mostly clear, with a low around 60.
Tuesday
Rain likely and possibly a thunderstorm. Partly sunny, with a high near 80. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 53. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm before noon, then a chance of rain. High near 66. Chance of precipitation is 80%.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 56.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Mostly cloudy, with a high near 68.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Byrnes Mill MO
38.45°N 90.58°W (Elev. 525 ft)
38.45°N 90.58°W (Elev. 525 ft)
5:21 am CST Mar 7, 2026
7am CST Mar 7, 2026-6pm CDT Mar 13, 2026



