10-Day Weather Forecast - Colchester, IL

Mostly sunny. Hot with highs in the lower 90s. Light and variable winds, becoming northwest around 5 mph. Heat index values up to 107.

Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 60s. Northeast winds 5 to 10 mph. Heat index values up to 106 early in the evening.

Mostly sunny. Humid with highs in the mid 80s. East winds 5 to 10 mph.

Mostly clear. Lows in the lower 60s. East winds 5 to 10 mph.

Sunny. Highs in the mid 80s. Southeast winds 5 to 10 mph.

Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s.

Mostly sunny. Hot with highs in the lower 90s.

Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s.

Mostly sunny. Hot with highs in the lower 90s.

Partly cloudy. A chance of showers after midnight. Lows in the mid 60s. Chance of rain 40 percent.

Mostly sunny. Highs in the mid 80s.

Mostly clear. Lows in the lower 60s.

Mostly sunny. Highs in the upper 80s.

Clear. Low temperature around 63F. Dew point will be around 61F with an average humidity of 74%. Winds will be 4 mph from the E.

Sunny. High temperature around 83F. Dew point will be around 61F with an average humidity of 61%. Winds will be 3 mph from the S.

Clear. Low temperature around 66F. Dew point will be around 62F with an average humidity of 68%. Winds will be 4 mph from the S.

Sunny. High temperature around 86F. Dew point will be around 63F with an average humidity of 59%. Winds will be 6 mph from the S.

Clear. Low temperature around 68F. Dew point will be around 64F with an average humidity of 70%. Winds will be 4 mph from the S.