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Summit Argo, IL 7-Day Weather Forecast
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Summit Argo Weather Forecast
Summit Argo, IL Weather Forecast Date: 156 PM CDT Thu Sep 03 2026
Weather forecast for Summit Argo, IL
Today Hi: 85°FHi: 29°C Lo: 75°F Lo: 24°C |
This Afternoon... Partly cloudy. A chance of showers and thunderstorms. Near steady temperature in the mid 80s. East winds 10 to 15 mph. Chance of precipitation 30%. |
| Fri Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Friday... Partly cloudy. A chance of showers early in the morning. A slight chance of thunderstorms in the morning. A slight chance of showers late in the morning. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of precipitation 40%. Heat index values up to 100. |
| Sat Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Saturday... Mostly cloudy in the morning, then becoming partly cloudy. A slight chance of showers and thunderstorms in the morning. Humid with highs in the mid 80s inland, but only in the upper 70s near the lake. Northeast winds 5 to 10 mph. Chance of precipitation 20%. |
Sun Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Sunday... Partly cloudy. Highs in the lower 80s inland, but only in the upper 70s near the lake. |
| Labor Day Hi: 81°FHi: 27°C Lo: 69°F Lo: 21°C |
Labor Day... Partly cloudy. Highs in the lower 80s. |
| Tue Hi: 89°FHi: 32°C Lo: 71°F Lo: 22°C |
Tuesday... Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 80s. |
| Wed Hi: 89°FHi: 32°C |
Wednesday... Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 80s. |
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