10-Day Weather Forecast - Lanark, IL

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  • 67|45°F
    Mostly Sunny
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    Today

    67°F

    Mostly sunny. Warmer with highs around 70. Southwest winds 15 to 20 mph with gusts up to 30 mph.

    Tonight

    45°F

    Clear. Lows in the mid 40s. West winds 5 to 10 mph with gusts up to 20 mph becoming southwest after midnight.

    Hourly details
  • Day

    77°F

    Sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

    Night

    48°F

    Partly cloudy in the evening then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the mid 40s. Northwest winds 10 to 15 mph becoming north 5 to 10 mph after midnight. Chance of rain 50 percent.

    Hourly details
  • Day

    55°F

    Mostly cloudy with a 40 percent chance of showers. Much cooler with highs in the mid 50s. North winds 5 to 10 mph.

    Night

    38°F

    Mostly cloudy. Lows in the upper 30s. Highs in the upper 50s.

    Hourly details
  • Day

    56°F

    Mostly cloudy. Lows in the upper 30s. Highs in the upper 50s.

    Night

    40°F

    Mostly cloudy. Lows in the upper 30s. Highs in the upper 50s.

    Hourly details
  • Day

    61°F

    Partly sunny. A chance of showers in the afternoon. Highs in the lower 60s. Chance of rain 40 percent.

    Night

    43°F

    Partly cloudy. Lows around 40. Highs in the lower 60s.

    Hourly details
  • Day

    64°F

    Partly cloudy. Lows around 40. Highs in the lower 60s.

    Night

    45°F

    Partly cloudy. Lows around 40. Highs in the lower 60s.

    Hourly details
  • Weekend Weather

  • Day

    69°F

    Sunny. Highs in the upper 60s.

    Night

    49°F

    Mostly clear. Low temperature around 49F. Dew point will be around 42F with an average humidity of 61%. Winds will be 4 mph from the E.

  • Day

    64°F

    Partly cloudy. High temperature around 64F. Dew point will be around 45F with an average humidity of 62%. Winds will be 3 mph from the E.

    Night

    46°F

    Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 46F. Dew point will be around 41F with an average humidity of 64%. Winds will be 5 mph from the NE.

  • Day

    64°F

    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 64F. Dew point will be around 42F with an average humidity of 59%. Winds will be 4 mph from the N.

    Night

    46°F

    Partly cloudy. Low temperature around 46F. Dew point will be around 42F with an average humidity of 65%. Winds will be 3 mph from the NW.

  • Day

    65°F

    Mostly sunny. High temperature around 65F. Dew point will be around 42F with an average humidity of 59%. Winds will be 4 mph from the NW.

    Night

    48°F

    Partly cloudy. Low temperature around 48F. Dew point will be around 42F with an average humidity of 63%. Winds will be 2 mph from the NW.