Swift Reservoir Weather Forecast

    • 58
    • 81

    Increasing Clouds

    • 57
    • 82

    Rain Showers Likely

    • 53
    • 68

    Rain Showers Likely

    • 53
    • 74

    Mostly Sunny

    • 56
    • 78

    Sunny

    • 60
    • 82

    Mostly Sunny

    • 64
    • 85

    Partly Sunny

Today 14 Jul South Washington Cascade Foothills

Sunny. Highs in the upper 80s. Winds light.

Tonight 14 Jul South Washington Cascade Foothills

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Swift Reservoir Temperature Statistics

July Temperature

Southwest Washington Regional Airport (37.3 miles)

  • Lowest 9 July, 2026

    48.9 °F

  • Average July

    63.8 °F

  • Highest 6 July, 2026

    84.9 °F

Climate (2021–2026)

Southwest Washington Regional Airport (37.3 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.5 °F
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