Lake Washington Weather Forecast

    • 68
    • 78

    Chance Thunderstorms

    • 63
    • 85

    Mostly Sunny

    • 64
    • 87

    Partly Sunny

    • 60
    • 82

    Chance Rain Showers

    • 61
    • 82

    Chance Rain Showers

    • 62
    • 80

    Chance Rain Showers

Today 17 Aug Orange

Mostly cloudy Early, then becoming partly sunny. A chance of Showers and Thunderstorms. Highs around 80. Northeast Winds around 5 Mph. Chance of rain 40 percent.

Tonight 17 Aug Orange

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Humid with Lows in the mid 60s. North Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Washington Temperature Statistics

August Temperature

Newburgh / Stewart (1.2 miles)

  • Lowest 15 August, 2026

    59 °F

  • Average August

    74.7 °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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