Bluff Lake Weather Forecast

    • 44
    • 50

    Rain Showers

    • 51
    • 55

    Decreasing Clouds

    • 53
    • 67

    Sunny

    • 47
    • 60

    Partly Sunny

    • 49
    • 57

    Mostly Sunny

    • 52
    • 65

    Mostly Sunny

    • 50
    • 61

    Partly Sunny

Today 14 Sep Cascades of Whatcom and Skagit Counties

Showers likely in the morning. A chance of snow Showers through the day. Rain Showers and a slight chance of Thunderstorms in the afternoon. Patchy fog in the late morning and early afternoon. Areas of dense fog late in the afternoon. Snow level near 9000 feet. Rainfall Amounts a quarter to a half inch Possible, except higher Amounts possible in Thunderstorms. No snow accumulation.

Tonight 14 Sep Cascades of Whatcom and Skagit Counties

Mostly cloudy. Patchy fog in the Evening, then Areas of fog in the late evening and early morning. Widespread dense fog late in the night. Showers, a slight chance of Thunderstorms and Showers in the Evening, then a chance of rain and snow after midnight. Snow level near 8500 feet. Rainfall Amounts less than a tenth of an inch Likely, except higher Amounts possible in Thunderstorms. No snow accumulation.

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Bluff Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (39.1 miles)

  • Lowest 9 September, 2025

    51.8 °F
  • Average September

    63.3 °F
  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Arlington Municipal Airport (39.1 miles)

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  • Average Low 2020–2025

    42.4 °F
  • Average 2020–2025

    50.6 °F
  • Average High 2020–2025

    59.7 °F
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