10-Day Weather Forecast - Cahokia, IL

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent.

Mostly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 60s. Northwest winds around 5 mph. Chance of rain 40 percent.

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

Mostly clear. Lows in the mid 60s. North winds around 5 mph.

Sunny. Highs in the mid 80s.

Mostly clear. Lows in the lower 60s.

Mostly clear. Highs in the upper 80s.

Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 60s.

Mostly sunny. Highs in the lower 90s.

Mostly clear. Lows in the lower 70s.

Mostly sunny. Highs in the mid 90s. Heat index values up to 100 in the afternoon.

Partly cloudy. A 20 percent chance of showers. Lows in the mid 70s. Heat index values up to 100.

Partly cloudy. A 20 percent chance of showers. Highs in the lower 90s. Heat index values up to 100.

Mostly clear. Low temperature around 71F. Dew point will be around 69F with an average humidity of 74%. Winds will be 1 mph from the SW.

Sunny with a 30% chance for rain and thunderstorms. High temperature around 90F. Dew point will be around 67F with an average humidity of 58%. Winds will be 1 mph from the SW.

Mostly clear with a 35% chance for rain and thunderstorms. Low temperature around 69F. Dew point will be around 68F with an average humidity of 77%. Winds will be 1 mph from the SE.

Mostly sunny with a 30% chance for rain and thunderstorms. High temperature around 88F. Dew point will be around 67F with an average humidity of 61%. Winds will be 1 mph from the SW.

Partly cloudy with a 25% chance for rain and thunderstorms. Low temperature around 68F. Dew point will be around 66F with an average humidity of 77%. Winds will be 2 mph from the NE.