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Colchester High School, IL 7-Day Weather Forecast
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Colchester High School Weather Forecast
Colchester High School, IL Weather Forecast Date: 126 AM CDT Tue Aug 11 2026
Weather forecast for Colchester High School, IL
Tonight Lo: 75°F Lo: 24°C |
Tonight... Partly cloudy. Patchy fog. Near steady temperature in the mid 70s. South winds around 5 mph. |
Tue Hi: 90°FHi: 32°C Lo: 71°F Lo: 22°C |
Tuesday... Mostly sunny. Patchy fog in the morning. A chance of showers and thunderstorms, mainly in the morning. Hot with highs around 90. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 30%. Heat index values up to 104 in the afternoon. |
| Wed Hi: 89°FHi: 32°C Lo: 70°F Lo: 21°C |
Wednesday... A chance of thunderstorms in the morning. Partly sunny with a chance of showers. Humid with highs in the upper 80s. Southeast winds around 5 mph. Chance of rain 50%. Heat index values up to 100 in the afternoon. |
| Thu Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Thursday... Showers likely. A chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 70%. |
| Fri Hi: 81°FHi: 27°C Lo: 69°F Lo: 21°C |
Friday... Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 80s. Lows in the upper 60s. Chance of rain 50%. |
Sat Hi: 89°FHi: 32°C Lo: 71°F Lo: 22°C |
Saturday... Partly sunny. Highs in the upper 80s. Heat index values up to 100 in the afternoon. |
| Sun Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Sunday... Partly sunny. Highs in the mid 80s. |
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