Twin Lakes Weather Forecast

    • 48
    • 55

    Becoming Sunny

    • 51
    • 66

    Sunny

    • 43
    • 58

    Partly Sunny

    • 45
    • 56

    Mostly Sunny

    • 49
    • 63

    Mostly Sunny

    • 46
    • 60

    Chance Rain

Today 15 Sep Cascades of Whatcom and Skagit Counties

Partly sunny in the morning then becoming sunny. Areas of dense fog in the morning. Patchy dense fog late in the morning. Freezing level near 11000 feet increasing to 13000 feet in the afternoon.

Tonight 15 Sep Cascades of Whatcom and Skagit Counties

Mostly clear. Freezing level near 14500 feet.

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Twin Lakes Temperature Statistics

September Temperature

Bellingham, Bellingham International Airport (42.3 miles)

  • Lowest 11 September, 2025

    54 °F

  • Average September

    62.4 °F

  • Highest 3 September, 2025

    79 °F

Climate (2020–Present)

Bellingham, Bellingham International Airport (42.3 miles)

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    59 °F
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