
Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley
Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >
Current conditions at
St. Louis Lambert International Airport (KSTL)
Lat: 38.75°NLon: 90.37°WElev: 604ft.
A Few Clouds
80°F
27°C
| Humidity | 64% |
| Wind Speed | S 6 mph |
| Barometer | 30.01 in (1015.0 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 26 Aug 8:51 am CDT |
Extended Forecast for
Saint Louis MO
Today

High: 92 °F
Mostly Sunny
Tonight

Low: 69 °F
Mostly Clear
Thursday

High: 87 °F
Sunny
Thursday Night

Low: 66 °F
Decreasing
CloudsFriday

High: 86 °F
Sunny
Friday Night

Low: 65 °F
Mostly Clear
Saturday

High: 88 °F
Sunny
Saturday Night

Low: 69 °F
Partly Cloudy
Sunday

High: 93 °F
Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 92. Light and variable wind becoming west 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 69. West wind around 6 mph becoming calm after midnight.
Thursday
Sunny, with a high near 87. North wind 3 to 8 mph.
Thursday Night
Mostly cloudy, then gradually becoming clear, with a low around 66. North wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 86. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 74.
Monday
Mostly sunny, with a high near 96.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Mostly sunny, with a high near 95.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Saint Louis MO
38.64°N 90.23°W (Elev. 538 ft)
38.64°N 90.23°W (Elev. 538 ft)
7:36 am CDT Aug 26, 2026
9am CDT Aug 26, 2026-6pm CDT Sep 1, 2026


