Issaquah Weather Forecast

    • 50
    • 73

    Increasing Clouds

    • 52
    • 75

    Mostly Sunny

    • 57
    • 82

    Sunny

    • 61
    • 86

    Mostly Sunny

    • 63
    • 91

    Partly Sunny

    • 57
    • 85

    Partly Sunny

Today 11 Jun Eastside

Sunny. Highs in the upper 60s to mid 70s. Light wind.

Tonight 11 Jun Eastside

Mostly clear in the evening then becoming mostly cloudy. Lows near 50. Light wind.

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  • Temperature Real-Time

Issaquah Temperature Statistics

June Temperature

Renton Municipal Airport (8.7 miles)

  • Lowest 1 June, 2026

    46 °F

  • Average June

    60.4 °F

  • Highest 2 June, 2026

    86 °F

Climate (2021–Present)

Renton Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    62.3 °F
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