Clear Lake Weather Forecast

    • 49
    • 62

    Rain Likely

    • 47
    • 58

    Chance Rain

    • 43
    • 61

    Partly Sunny

    • 43
    • 66

    Mostly Sunny

    • 45
    • 67

    Mostly Sunny

    • 46
    • 66

    Mostly Sunny

Today 21 Apr Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. A slight chance of rain in the late morning and early afternoon. A chance of rain late in the afternoon. Highs in the upper 50s to mid 60s. South wind 10 to 15 Mph becoming southwest in the afternoon.

Tonight 21 Apr Lowlands of Western Skagit and Northwestern Snohomish Counties

Cloudy with a chance of rain. Lows near 50. Southwest wind 10 to 15 Mph becoming west after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

April Temperature

Burlington/Mount Vernon, Skagit Regional Airport (8.1 miles)

  • Lowest 8 April, 2026

    35.6 °F
  • Average April

    49.1 °F
  • Highest 6 April, 2026

    68 °F

Climate (2021–Present)

Burlington/Mount Vernon, Skagit Regional Airport (8.1 miles)

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  • Average Low 2021–2026

    43.8 °F
  • Average 2021–2026

    51.3 °F
  • Average High 2021–2026

    59.6 °F
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