Flat Lake Weather Forecast

    • 5
    • 15

    Chance Snow

    • 19
    • 30

    Chance Snow

    • 28
    • 34

    Mostly Cloudy

    • 17
    • 42

    Partly Sunny

    • 14
    • 24

    Mostly Cloudy

    • 16
    • 29

    Partly Sunny

    • 22
    • 35

    Mostly Cloudy

Today 2 Feb McHenry

Cloudy. East Winds around 10 Mph.

Tonight 2 Feb McHenry

Cloudy. A slight chance of snow in the Evening, then a slight chance of Flurries after midnight. Lows 5 to 10 above. Southeast Winds 5 to 10 Mph. Chance of snow 20 percent.

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Flat Lake Temperature Statistics

February Temperature

Harvey Municipal Airport (22.4 miles)

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  • Average February

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Climate (2021–Present)

Harvey Municipal Airport (22.4 miles)

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  • Average Low 2021–2026

    30.1 °F

  • Average 2021–2026

    41.1 °F

  • Average High 2021–2026

    51.8 °F
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