10-Day Weather Forecast - Lanark, IL

Areas of dense fog in the morning. Cloudy. Highs in the mid 40s. Southeast winds 10 to 15 mph.

Mostly cloudy. A chance of showers after midnight. Lows in the lower 40s. Southeast winds 5 to 10 mph. Chance of rain 30 percent.

Cloudy. A chance of showers in the morning then rain likely in the afternoon. Highs in the lower 50s. Temperature falling into the mid 40s in the afternoon. Southwest winds 5 to 10 mph increasing to northwest 15 to 20 mph with gusts up to 30 mph in the afternoon. Chance of rain 70 percent.

A chance of rain in the evening. Mostly cloudy with a chance of snow. Light snow accumulation possible. Windy and much cooler with lows around 13. Northwest winds 20 to 30 mph with gusts up to 40 mph. Chance of precipitation 50 percent. Wind chill values as low as 6 below after midnight.

Mostly cloudy in the morning then becoming partly sunny. Windy and much cooler with highs around 20. Wind chill values as low as 5 below in the morning.

Partly cloudy in the evening then becoming mostly clear. Cold with lows around 10 above. Wind chill values as low as zero.

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

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

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

Mostly cloudy in the evening then becoming partly cloudy. Colder with lows around 5 above. Wind chill values as low as 10 below after midnight.

Mostly clear. Highs around 15. Lows around zero. Wind chill values as low as 10 below.

Mostly clear. Highs around 15. Lows around zero. Wind chill values as low as 10 below.

Mostly sunny. Highs around 20.

Clear. Low temperature around 17F. Dew point will be around 8F with an average humidity of 63%. Winds will be 2 mph from the SW.

Partly cloudy. High temperature around 23F. Dew point will be around 9F with an average humidity of 59%. Winds will be 2 mph from the W.

Partly cloudy. Low temperature around 19F. Dew point will be around 12F with an average humidity of 67%. Winds will be 1 mph from the SW.

Mostly sunny with a slight chance of snow. Chance of precipitation 25%. High temperature around 25F. Dew point will be around 13F with an average humidity of 65%. Winds will be 3 mph from the W.

Cloudy with a chance of snow. Chance of precipitation 35%. Low temperature around 23F. Dew point will be around 17F with an average humidity of 73%. Winds will be 1 mph from the W.