Thu Feb 20 04:36:42 AM EST 2025 McHenry- Including the cities of Crystal Lake, Algonquin, McHenry, and Woodstock 336 AM CST Thu Feb 20 2025 .TODAY...Partly sunny. Highs in the lower 20s. Northwest winds around 10 mph with gusts up to 20 mph. Wind chill values as low as 15 below in the morning. .TONIGHT...Partly cloudy in the evening, then clearing. Lows around 2 above. Northwest winds around 5 mph. .FRIDAY...Sunny. Highs in the lower 20s. West winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows around 7 above. Southwest winds 5 to 10 mph. Gusts up to 20 mph after midnight. .SATURDAY...Mostly sunny. Highs in the mid 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows around 20. .SUNDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 30s. .SUNDAY NIGHT...Mostly cloudy. Nearly steady temperatures in the lower 30s. .MONDAY...Partly sunny. Highs in the lower 40s. .MONDAY NIGHT...Mostly cloudy. Lows in the lower 30s. .TUESDAY...Partly sunny. Highs in the lower 40s. .TUESDAY NIGHT...Mostly cloudy. Lows around 30. .WEDNESDAY...Partly sunny in the morning, then mostly cloudy with a chance of rain in the afternoon. Highs in the mid 40s. Chance of precipitation 40 percent.