Lake Washington Weather Forecast

    • 53
    • 80

    Increasing Clouds

    • 52
    • 77

    Partly Sunny

    • 49
    • 76

    Mostly Sunny

    • 51
    • 77

    Mostly Sunny

    • 58
    • 82

    Mostly Sunny

    • 63
    • 85

    Chance Rain Showers

Today 31 May Putnam

Mostly sunny. Highs around 80. East Winds around 5 Mph.

Tonight 31 May Putnam

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Washington Temperature Statistics

May Temperature

Charleston, Yeager Airport (21.7 miles)

  • Lowest 3 May, 2026

    32.6 °F

  • Average May

    63.3 °F

  • Highest 18 May, 2026

    93.7 °F

Climate (2021–Present)

Charleston, Yeager Airport (21.7 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    57 °F

  • Average High 2021–2026

    68.4 °F
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