Lake Lemer Weather Forecast

    • 48
    • 68

    Mostly Cloudy

    • 45
    • 64

    Decreasing Clouds

    • 44
    • 69

    Mostly Sunny

    • 50
    • 69

    Mostly Sunny

    • 53
    • 71

    Chance Rain Showers

    • 54
    • 75

    Partly Sunny

    • 56
    • 76

    Partly Sunny

Today 19 Sep McHenry

Mostly cloudy. Highs in the upper 60s. Northeast Winds around 15 Mph.

Tonight 19 Sep McHenry

Mostly cloudy. Lows in the upper 40s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Lemer Temperature Statistics

September Temperature

RUGBY (25.5 miles)

  • Lowest 13 September, 2026

    35.6 °F

  • Average September

    61.2 °F

  • Highest 5 September, 2026

    84.2 °F

Climate (2021–2026)

RUGBY (25.5 miles)

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  • Average Low 2021–2026

    27 °F

  • Average 2021–2026

    37.6 °F

  • Average High 2021–2026

    47.9 °F
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