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 Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Partly Cloudy
90°F
32°C
| Humidity | 52% |
| Wind Speed | NW 7 mph |
| Barometer | 29.97 in |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 96°F (36°C) |
| Last update | 26 Aug 2:50 pm CDT |
Extended Forecast for
Pontoon Beach IL
This Afternoon
High: 92 °F
Isolated
T-stormsTonight
Low: 66 °F
Mostly Clear
Thursday
High: 88 °F
Sunny
Thursday Night
Low: 63 °F
Mostly Clear
Friday
High: 86 °F
Sunny
Friday Night
Low: 61 °F
Mostly Clear
Saturday
High: 90 °F
Mostly Sunny
Saturday Night
Low: 68 °F
Partly Cloudy
Sunday
High: 96 °F
Sunny
Detailed Forecast
This Afternoon
Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Northwest wind around 9 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 66. Northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 88. Calm wind becoming north 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 63. 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 61.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny and hot, with a high near 98.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny and hot, with a high near 98.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Mostly sunny and hot, with a high near 98.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Pontoon Beach IL
38.73°N 90.06°W (Elev. 423 ft)
38.73°N 90.06°W (Elev. 423 ft)
2:56 pm CDT Aug 26, 2026
3pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
