Thornton Lake Weather Forecast

    • 43
    • 52

    Mostly Cloudy

    • 35
    • 56

    Rain/Snow

    • 34
    • 43

    Rain/Snow

    • 31
    • 38

    Rain/Snow

    • 28
    • 38

    Snow

    • 32
    • 45

    Rain/Snow Likely

    • 29
    • 37

    Snow

Today 25 Mar West Slopes North Central Cascades and Passes

Partly sunny. A slight chance of rain and snow in the morning. Snow level near 8000 feet.

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Thornton Lake Temperature Statistics

March Temperature

Arlington Municipal Airport (34.8 miles)

  • Lowest 6 March, 2025

    28 °F

  • Average March

    44.6 °F

  • Highest 1 March, 2025

    62.1 °F

Climate (2020–Present)

Arlington Municipal Airport (34.8 miles)

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  • Average Low 2020–2025

    42.3 °F

  • Average 2020–2025

    50.4 °F

  • Average High 2020–2025

    59.5 °F
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