Hart Lake Weather Forecast

    • 30
    • 43

    Snow Showers

    • 31
    • 41

    Partly Sunny

    • 33
    • 48

    Mostly Sunny

    • 37
    • 48

    Chance Rain Showers

    • 36
    • 41

    Rain Showers Likely

    • 36
    • 46

    Chance Rain/Snow

Today 25 Sep Western Chelan County

Rain Showers and a chance of Thunderstorms. Highs in the upper 50s to upper 60s. Temperature falling into the lower 40s in the afternoon. West wind 5 to 15 Mph in the Afternoon, Gusts up to 20 Mph increasing to 35 Mph in the afternoon. Chance of precipitation near 100 percent. Rainfall Amounts up to a half inch Possible, except higher Amounts possible in Thunderstorms.

Tonight 25 Sep Western Chelan County

Rain and mountain snow Showers in the Evening, then a chance of rain and mountain snow Showers overnight. Mountain snow accumulation up to 2 Inches. Snow level 5500 feet. Lows in the upper 30s to upper 40s. Breezy. West wind 5 to 15 Mph with Gusts up to 45 Mph, except west 10 to 20 Mph with Gusts up to 40 Mph in the Mountains. Chance of precipitation near 100 percent.

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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 °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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