10-Day Weather Forecast - Lanark, IL

Patchy fog after midnight. A chance of showers and thunderstorms this morning. Occasional showers and thunderstorms this afternoon. Humid with highs in the upper 70s. East winds 5 to 10 mph. Chance of rain 90 percent.

Mostly cloudy. A chance of showers and thunderstorms in the evening, then occasional showers and thunderstorms after midnight. Humid with lows in the mid 60s. East winds around 10 mph. Chance of rain 80 percent.

Mostly cloudy. Showers and thunderstorms likely, mainly in the morning. Humid with highs around 80. East winds 5 to 10 mph. Chance of rain 70 percent.

Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Humid with lows in the upper 60s. East winds 5 to 10 mph. Chance of rain 70 percent.

Showers likely with a chance of thunderstorms in the morning, then partly sunny in the afternoon. Humid with highs in the mid 80s. Southeast winds 5 to 10 mph, becoming southwest in the afternoon. Chance of rain 70 percent. Heat index values up to 101 in the afternoon.

Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows around 70. Chance of rain 70 percent.

Mostly cloudy in the morning, then becoming partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.

Partly cloudy. Lows in the mid 60s.

Partly cloudy. Highs in the upper 70s.

Mostly clear. Lows around 60.

Mostly sunny. Highs in the upper 70s.

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

A chance of showers in the morning. Partly sunny. Highs around 80. Chance of rain 40 percent.

Mostly clear with a 40% chance for rain and thunderstorms. Low temperature around 67F. Dew point will be around 68F with an average humidity of 89%. Winds will be 2 mph from the E.

Mostly sunny. High temperature around 78F. Dew point will be around 69F with an average humidity of 85%. Winds will be 2 mph from the E.

Clear. Low temperature around 64F. Dew point will be around 66F with an average humidity of 88%. Winds will be 1 mph from the E.

Sunny with a 25% chance for rain and thunderstorms. High temperature around 78F. Dew point will be around 67F with an average humidity of 83%. Winds will be 1 mph from the S.

Clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 64F. Dew point will be around 65F with an average humidity of 85%. Winds will be 1 mph from the S.