Lake Washington Weather Forecast

    • 64
    • 85

    Mostly Sunny

    • 68
    • 87

    Partly Sunny

    • 73
    • 89

    Rain Showers Likely

    • 68
    • 88

    Chance Thunderstorms

    • 65
    • 86

    Slight Chance Thunderstorms

    • 65
    • 86

    Mostly Sunny

Today 25 Jul Putnam

Mostly sunny. Highs in the mid 80s. West Winds around 5 Mph.

Tonight 25 Jul Putnam

Mostly clear. Lows in the lower 60s. Northwest Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Washington Temperature Statistics

July Temperature

Charleston, Yeager Airport (21.7 miles)

  • Lowest 14 July, 2026

    64.7 °F

  • Average July

    78.7 °F

  • Highest 3 July, 2026

    95.6 °F

Climate (2021–2026)

Charleston, Yeager Airport (21.7 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    57.1 °F

  • Average High 2021–2026

    68.5 °F
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