Day Lake Weather Forecast

    • 47
    • 66

    Mostly Sunny

    • 50
    • 67

    Mostly Sunny

    • 53
    • 72

    Mostly Sunny

    • 48
    • 58

    Rain Showers

    • 45
    • 60

    Slight Chance Rain

    • 53
    • 69

    Mostly Sunny

    • 55
    • 76

    Mostly Sunny

Today 29 Jul Foothills and Valleys of the North Cascades

Mostly sunny. Patchy fog in the morning. Highs in the 70s. Light wind.

Tonight 29 Jul Foothills and Valleys of the North Cascades

Mostly clear. Lows near 50. Light wind.

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Day Lake Temperature Statistics

July Temperature

Arlington Municipal Airport (18.6 miles)

  • Lowest 13 July, 2026

    44.6 °F

  • Average July

    64.1 °F

  • Highest 22 July, 2026

    93 °F

Climate (2021–2026)

Arlington Municipal Airport (18.6 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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