Swift Reservoir Weather Forecast

    • 60
    • 88

    Mostly Sunny

    • 55
    • 84

    Mostly Sunny

    • 51
    • 74

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

    • 53
    • 75

    Partly Sunny

Today 30 Jun South Washington Cascade Foothills

Sunny. Highs in the lower 90s. North wind 5 to 10 Mph.

Tonight 30 Jun South Washington Cascade Foothills

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. Northwest wind 5 to 10 Mph.

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Swift Reservoir Temperature Statistics

June Temperature

Southwest Washington Regional Airport (37.3 miles)

  • Lowest 2 June, 2025

    43 °F

  • Average June

    60.7 °F

  • Highest 8 June, 2025

    91.9 °F

Climate (2020–Present)

Southwest Washington Regional Airport (37.3 miles)

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  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    62.2 °F
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