Thornton Lake Weather Forecast

    • 34
    • 37

    Rain/Snow

    • 36
    • 39

    Rain

    • 34
    • 38

    Rain/Snow

    • 33
    • 40

    Snow

    • 28
    • 34

    Snow

    • 32
    • 43

    Partly Sunny

Today 21 Feb West Slopes North Central Cascades and Passes

A slight chance of rain and snow in the morning. Rain and snow in the afternoon. Snow level near 4500 feet. Rainfall Amounts a quarter to a half inch possible. Snow accumulation up to 1 inch. Afternoon pass Temperatures in the mid to upper 30s. East wind in the Passes 10 to 15 Mph becoming southeast in the afternoon.

Tonight 21 Feb West Slopes North Central Cascades and Passes

Rain and snow. Snow level near 5500 feet. Rainfall Amounts a half inch to one inch possible. Snow accumulation up to 2 Inches. Total snow accumulation up to 3 Inches. Southeast wind in the Passes around 10 Mph.

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Thornton Lake Temperature Statistics

February Temperature

Arlington Municipal Airport (34.8 miles)

  • Lowest 12 February, 2025

    14 °F

  • Average February

    34.4 °F

  • Highest 18 February, 2025

    54 °F

Climate (2020–Present)

Arlington Municipal Airport (34.8 miles)

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  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    59.4 °F
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