Hart Lake Weather Forecast

    • 36
    • 51

    Increasing Clouds

    • 37
    • 50

    Mostly Cloudy

    • 38
    • 51

    Rain Showers

    • 32
    • 40

    Rain/Snow Likely

    • 32
    • 41

    Mostly Cloudy

    • 33
    • 42

    Mostly Cloudy

Today 22 Sep Western Chelan County

Mostly cloudy in the morning then clearing. Highs in the mid 60s to mid 70s. Northwest wind 5 to 15 Mph in the afternoon. Gusts up to 30 Mph.

Tonight 22 Sep Western Chelan County

Mostly cloudy. Lows in the lower 40s to lower 50s. Gusts up to 25 Mph.

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Hart Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (59.7 miles)

  • Lowest 16 September, 2026

    44.1 °F

  • Average September

    59.3 °F

  • Highest 9 September, 2026

    78.1 °F

Climate (2021–2026)

Arlington Municipal Airport (59.7 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
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