Lake Washington Weather Forecast

    • 68
    • 88

    Chance Thunderstorms

    • 65
    • 88

    Chance Thunderstorms

    • 60
    • 85

    Partly Sunny

    • 61
    • 85

    Partly Sunny

    • 65
    • 87

    Mostly Sunny

    • 68
    • 91

    Mostly Sunny

Today 9 Jul Orange

Partly sunny. Patchy fog this morning. A slight chance of Showers this Morning, then a chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may produce heavy rainfall this afternoon. Highs in the mid 80s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 9 Jul Orange

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Patchy fog after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Humid with Lows in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

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Lake Washington Temperature Statistics

July Temperature

Newburgh / Stewart (1.2 miles)

  • Lowest 6 July, 2026

    64.4 °F

  • Average July

    80.6 °F

  • Highest 2 July, 2026

    102.2 °F

Climate (2021–2026)

Newburgh / Stewart (1.2 miles)

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  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    61.3 °F
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