10-Day Weather Forecast - Lanark, IL

Mostly cloudy. Not as cool with highs in the mid 20s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Wind chill values as low as 14 below early this morning.

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Not as cool with lows around 12. Southwest winds around 5 mph becoming southeast around 5 mph after midnight.

Patchy fog in the morning. Partly sunny. Not as cool with highs in the mid 30s. South winds 10 to 15 mph.

Mostly cloudy in the evening then becoming partly cloudy. Not as cool with lows in the mid 20s. Southwest winds 5 to 10 mph with gusts up to 20 mph becoming west after midnight.

Mostly sunny. Highs in the upper 30s. West winds around 5 mph becoming south in the afternoon.

Mostly cloudy. Rain likely after midnight. Lows in the lower 30s. Temperature rising into the upper 30s after midnight. Chance of rain 60 percent.

Mostly cloudy in the morning then becoming partly sunny. A chance of rain in the morning. Breezy with highs in the lower 40s. Temperature falling into the mid 20s in the afternoon. Chance of rain 50 percent.

Mostly cloudy in the evening then becoming partly cloudy. Much colder with lows around 5 above. Wind chill values as low as 5 below after midnight.

Mostly cloudy. Highs in the upper 20s. Lows around 20. Wind chill values as low as 5 below.

Mostly cloudy. Highs in the upper 20s. Lows around 20. Wind chill values as low as 5 below.

Mostly cloudy. Highs around 40. Lows around 20.

Mostly cloudy. Highs around 40. Lows around 20.

Mostly sunny. Highs in the lower 30s.

Clear. Low temperature around 22F. Dew point will be around 17F with an average humidity of 76%. Winds will be 5 mph from the SE.

Mostly cloudy. High temperature around 35F. Dew point will be around 25F with an average humidity of 75%. Winds will be 8 mph from the S.

Cloudy. Low temperature around 31F. Dew point will be around 29F with an average humidity of 86%. Winds will be 4 mph from the S.

Cloudy. High temperature around 38F. Dew point will be around 31F with an average humidity of 86%. Winds will be 2 mph from the W.

Cloudy. Low temperature around 28F. Dew point will be around 27F with an average humidity of 86%. Winds will be 2 mph from the N.