Dangerous Heat and Possible Flooding
Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >
Current conditions at
St. Louis Lambert International Airport (KSTL)
Lat: 38.75°NLon: 90.37°WElev: 604ft.
Partly Cloudy
73°F
23°C
| Humidity | 64% |
| Wind Speed | Calm |
| Barometer | 30.13 in (1019.1 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 28 Aug 11:51 pm CDT |
Extended Forecast for
Sycamore Hills MO
Overnight
Low: 67 °F
Mostly Clear
Saturday
High: 90 °F
Mostly Sunny
Saturday Night
Low: 71 °F
Partly Cloudy
Sunday
High: 96 °F
Mostly Sunny
Sunday Night
Low: 77 °F
Mostly Clear
Monday
High: 99 °F
Hot
Monday Night
Low: 79 °F
Mostly Clear
Tuesday
High: 99 °F
Hot
Tuesday Night
Low: 81 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly clear, with a low around 67. Calm wind.
Saturday
Mostly sunny, with a high near 90. South wind 3 to 8 mph.
Saturday Night
Partly cloudy, with a low around 71. South wind around 8 mph.
Sunday
Mostly sunny, with a high near 96. South wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 77. South wind around 9 mph.
Monday
Sunny and hot, with a high near 99.
Monday Night
Mostly clear, with a low around 79.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 81.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Mostly clear, with a low around 80.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Partly cloudy, with a low around 80.
Friday
Mostly sunny and hot, with a high near 97.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Sycamore Hills MO
38.71°N 90.34°W (Elev. 597 ft)
38.71°N 90.34°W (Elev. 597 ft)
11:26 pm CDT Aug 28, 2026
12am CDT Aug 29, 2026-6pm CDT Sep 4, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
