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Summum Weather Forecast
Summum, IL Weather Forecast Date: 207 PM CDT Sun Sep 13 2026
Weather forecast for Summum, IL
Today Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
This Afternoon... Partly sunny with isolated showers. Near steady temperature in the mid 70s. North winds 10 to 15 mph. Chance of rain 20%. |
Mon Hi: 79°FHi: 26°C Lo: 70°F Lo: 21°C |
Monday... Partly sunny with a 20% chance of showers. Highs in the upper 70s. Southeast winds 10 to 15 mph. |
Tue Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Tuesday... Mostly sunny with a chance of showers. Warmer with highs in the upper 80s. South winds 5 to 10 mph with gusts up to 25 mph, becoming west in the afternoon. Chance of rain 50%. |
Wed Hi: 81°FHi: 27°C Lo: 69°F Lo: 21°C |
Wednesday... Showers likely in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 70%. |
| Thu Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Thursday... Showers likely in the morning. Highs in the mid 80s. Chance of rain 60%. |
| Fri Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Friday... Partly cloudy with a chance of showers. Highs in the lower 80s. Lows in the mid 60s. Chance of rain 40%. |
| Sat Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Saturday... Partly cloudy with a chance of showers. Highs in the lower 80s. Lows in the mid 60s. Chance of rain 40%. |
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