Island Lake Weather Forecast

    • 42
    • 53

    Increasing Clouds

    • 43
    • 48

    Mostly Cloudy

    • 45
    • 60

    Partly Sunny

    • 47
    • 59

    Partly Sunny

    • 53
    • 70

    Mostly Sunny

    • 49
    • 71

    Mostly Sunny

    • 43
    • 66

    Mostly Sunny

Today 3 Jun South Washington Cascades

Sunny. Free air freezing level 11000 Feet, decreasing to free air freezing level 10000 feet this afternoon. Northwest wind 10 to 15 Mph.

Tonight 3 Jun South Washington Cascades

Mostly clear this Evening, then becoming partly cloudy. Free air freezing level 11000 feet. Northwest wind 10 to 15 Mph, becoming light after midnight.

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Island Lake Temperature Statistics

June Temperature

Southwest Washington Regional Airport (38.5 miles)

  • Lowest 1 June, 2025

    45 °F
  • Average June

    57.5 °F
  • Highest 1 June, 2025

    72 °F

Climate (2020–Present)

Southwest Washington Regional Airport (38.5 miles)

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  • Average Low 2020–2025

    45 °F
  • Average 2020–2025

    52.7 °F
  • Average High 2020–2025

    62.1 °F
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