Slide Lake Weather Forecast

    • 44
    • 60

    Mostly Sunny

    • 45
    • 60

    Mostly Sunny

    • 50
    • 66

    Mostly Sunny

    • 42
    • 53

    Rain Showers

    • 39
    • 51

    Slight Chance Rain

    • 49
    • 63

    Mostly Sunny

    • 53
    • 69

    Mostly Sunny

Today 29 Jul Cascades of Whatcom and Skagit Counties

Mostly sunny. Freezing level near 13000 feet.

Tonight 29 Jul Cascades of Whatcom and Skagit Counties

Partly cloudy. Freezing level near 13000 feet.

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Slide Lake Temperature Statistics

July Temperature

Arlington Municipal Airport (41.6 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 (41.6 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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