Long Lake Weather Forecast

    • 61
    • 81

    Gradual Clearing

    • 64
    • 86

    Rain Showers Likely

    • 63
    • 81

    Rain Showers

    • 61
    • 79

    Rain Showers

    • 52
    • 76

    Mostly Sunny

    • 48
    • 71

    Partly Sunny

    • 51
    • 74

    Mostly Cloudy

Today 4 Sep McHenry

Mostly sunny. Highs around 80. East Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 4 Sep McHenry

Partly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then a chance of Showers and Thunderstorms after midnight. Lows around 60. East Winds around 15 Mph with Gusts up to 30 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Long Lake Temperature Statistics

September Temperature

RUGBY (23 miles)

  • Lowest 1 September, 2026

    51.8 °F

  • Average September

    65.8 °F

  • Highest 2 September, 2026

    80.6 °F

Climate (2021–2026)

RUGBY (23 miles)

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  • Average Low 2021–2026

    26.9 °F

  • Average 2021–2026

    37.5 °F

  • Average High 2021–2026

    47.9 °F
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