Lake Washington Weather Forecast

    • 65
    • 85

    Chance Thunderstorms

    • 64
    • 85

    Partly Sunny

    • 63
    • 85

    Chance Thunderstorms

    • 56
    • 82

    Mostly Sunny

    • 56
    • 81

    Slight Chance Thunderstorms

    • 62
    • 81

    Chance Rain Showers

Today 11 Aug Orange

Partly sunny. A chance of Showers and Thunderstorms this afternoon. Highs in the mid 80s. West Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 11 Aug Orange

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the lower 60s. Northwest Winds around 5 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Washington Temperature Statistics

August Temperature

Newburgh / Stewart (1.2 miles)

  • Lowest 4 August, 2026

    60.8 °F

  • Average August

    75.9 °F

  • Highest 6 August, 2026

    89.6 °F

Climate (2021–2026)

Newburgh / Stewart (1.2 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    61.4 °F
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