10-Day Weather Forecast - Flat Rock, IL

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  • |49°F
    Mostly Cloudy
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    Tonight

    49°F

    Mostly cloudy. Patchy fog. Not as cool. Near steady temperature in the upper 40s. Southwest winds around 10 mph with gusts up to 25 mph.

    Hourly details
  • Day

    60°F

    Partly sunny. Highs in the lower 60s. West winds 5 to 10 mph with gusts up to 20 mph.

    Night

    39°F

    Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s. North winds around 5 mph becoming northeast after midnight.

    Hourly details
  • Day

    55°F

    Mostly cloudy. Highs around 60. East winds 5 to 10 mph becoming southeast in the afternoon.

    Night

    55°F

    Mostly cloudy with a 50 percent chance of rain. Not as cool. Near steady temperature in the mid 50s. South winds 5 to 10 mph becoming southwest after midnight.

    Hourly details
  • Day

    61°F

    Mostly cloudy. Highs in the mid 60s. Lows in the upper 50s.

    Night

    56°F

    Mostly cloudy. Highs in the mid 60s. Lows in the upper 50s.

    Hourly details
  • Day

    67°F

    Partly cloudy. Highs around 70. Lows in the upper 40s.

    Night

    51°F

    Partly cloudy. Highs around 70. Lows in the upper 40s.

    Hourly details
  • Weekend Weather

  • Day

    65°F

    Mostly cloudy. Highs in the mid 60s.

    Night

    47°F

    Mostly cloudy with a 40 percent chance of rain. Lows in the upper 30s.

    Hourly details
  • Day

    44°F

    Mostly cloudy in the morning then becoming partly sunny. Much cooler with highs in the upper 40s. Temperature falling into the mid 30s in the afternoon.

    Night

    25°F

    Mostly clear. Lows around 20. Highs in the lower 30s.

    Hourly details
  • Day

    41°F

    Mostly clear. Lows around 20. Highs in the lower 30s.

    Night

    31°F

    Mostly clear. Low temperature around 31F. Dew point will be around 21F with an average humidity of 60%. Winds will be 1 mph from the SW.

  • Day

    44°F

    Sunny. High temperature around 44F. Dew point will be around 25F with an average humidity of 57%. Winds will be 6 mph from the SW.

    Night

    38°F

    Mostly cloudy. Low temperature around 38F. Dew point will be around 32F with an average humidity of 75%. Winds will be 6 mph from the S.

  • Day

    49°F

    Cloudy. High temperature around 49F. Dew point will be around 37F with an average humidity of 73%. Winds will be 8 mph from the SW.

    Night

    44°F

    Cloudy. Low temperature around 44F. Dew point will be around 39F with an average humidity of 82%. Winds will be 6 mph from the S.