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Pontoon Beach, IL 7-Day Weather Forecast
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Pontoon Beach Weather Forecast
Pontoon Beach, IL Weather Forecast Date: 127 PM CDT Fri Aug 14 2026
Weather forecast for Pontoon Beach, IL
Today Hi: 95°FHi: 35°C Lo: 75°F Lo: 24°C |
This Afternoon... Mostly sunny with a slight chance of showers and thunderstorms. Hot. Near steady temperature in the mid 90s. South winds around 5 mph. Chance of rain 20%. Heat index values up to 108. |
Sat Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Saturday... Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 108. |
| Sun Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Sunday... Mostly sunny. Hot with highs in the mid 90s. West winds 5 to 10 mph. Heat index values up to 110. |
| Mon Hi: 89°FHi: 32°C Lo: 69°F Lo: 21°C |
Monday... Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20%. |
Tue Hi: 89°FHi: 32°C Lo: 71°F Lo: 22°C |
Tuesday... Partly cloudy. Lows in the upper 60s. Highs in the upper 80s. |
| Wed Hi: 95°FHi: 35°C Lo: 70°F Lo: 21°C |
Wednesday... Partly cloudy. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105. |
| Thu Hi: 85°FHi: 29°C |
Thursday... Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning. Highs in the mid 80s. Chance of rain 40%. |
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