10-Day Weather Forecast - McHenry, IL

-
  • |3°F
    Very Cold
    Arrow up

    Tonight

    3°F

    Partly cloudy late in the evening then becoming mostly cloudy. Blustery. Very cold. Lows around 2 below. Southwest winds 5 to 10 mph increasing to 10 to 15 mph with gusts up to 30 mph after midnight. Wind chill values as low as 19 below.

    Hourly details
  • Day

    23°F

    Mostly cloudy and blustery. Not as cold with highs in the lower 20s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 15 below in the morning.

    Night

    19°F

    Partly cloudy. Lows around 13. Southwest winds around 5 mph.

    Hourly details
  • Day

    34°F

    Mostly cloudy. Highs in the mid 30s. Southwest winds 5 to 10 mph increasing to 10 to 15 mph with gusts up to 25 mph in the afternoon.

    Night

    31°F

    Mostly cloudy. Lows in the upper 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph becoming west 5 to 10 mph after midnight.

    Hourly details
  • Day

    38°F

    Partly cloudy in the morning then becoming mostly cloudy. Highs in the upper 30s.

    Night

    34°F

    Mostly cloudy. A chance of rain showers after midnight. Blustery with lows in the lower 30s. Temperature rising into the upper 30s after midnight. Chance of precipitation 40 percent.

    Hourly details
  • Day

    44°F

    Mostly cloudy. Rain showers likely in the morning then a chance of rain and snow showers in the afternoon. Breezy with highs in the mid 40s. Temperature falling to around 30 in the afternoon. Chance of precipitation 70 percent.

    Night

    16°F

    Mostly cloudy and blustery. Lows 5 to 10 above.

    Hourly details
  • Day

    21°F

    Partly cloudy in the morning then becoming mostly cloudy. Highs in the mid 20s.

    Night

    21°F

    Mostly cloudy. Lows around 20. Temperature rising into the upper 20s after midnight.

    Hourly details
  • Weekend Weather

  • Day

    39°F

    Mostly cloudy. Highs around 40.

    Night

    22°F

    Mostly cloudy. Lows around 20.

    Hourly details
  • Day

    30°F

    Partly cloudy. Highs around 30.

    Night

    26°F

    Mostly clear. Low temperature around 26F. Dew point will be around 19F with an average humidity of 72%. Winds will be 3 mph from the SE.

  • Day

    38°F

    Partly cloudy. High temperature around 38F. Dew point will be around 23F with an average humidity of 63%. Winds will be 7 mph from the S.

    Night

    35°F

    Cloudy. Low temperature around 35F. Dew point will be around 30F with an average humidity of 79%. Winds will be 5 mph from the S.

  • Day

    40°F

    Cloudy. High temperature around 40F. Dew point will be around 31F with an average humidity of 74%. Winds will be 3 mph from the W.

    Night

    31°F

    Mostly cloudy. Low temperature around 31F. Dew point will be around 29F with an average humidity of 82%. Winds will be 3 mph from the N.