10-Day Weather Forecast - Saint Augustine, IL

Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 107.

Mostly clear. A slight chance of showers and thunderstorms after midnight. Humid with lows in the lower 70s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent.

Sunny with highs in the lower 90s. Northwest winds around 5 mph. Heat index values up to 104.

Mostly clear. Humid with lows in the upper 60s. Northeast winds 5 to 10 mph.

Mostly sunny. Highs in the mid 80s.

Mostly clear. Lows in the lower 60s.

Partly cloudy. Highs in the mid 80s.

Partly cloudy. Lows in the mid 60s.

Mostly sunny. Highs in the lower 90s.

Mostly clear. Lows in the lower 70s.

Mostly sunny. Highs in the lower 90s.

Partly cloudy. A chance of showers after midnight. Lows around 70. Chance of rain 30 percent.

Mostly sunny. Highs in the upper 80s.

Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 66F. Dew point will be around 67F with an average humidity of 79%. Winds will be 1 mph from the E.

Partly cloudy. High temperature around 84F. Dew point will be around 69F with an average humidity of 76%. Winds will be 2 mph from the E.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 64F. Dew point will be around 66F with an average humidity of 82%. Winds will be 3 mph from the SE.

Sunny. High temperature around 85F. Dew point will be around 69F with an average humidity of 74%. Winds will be 4 mph from the S.

Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 64F. Dew point will be around 66F with an average humidity of 80%. Winds will be 3 mph from the S.