Lake Washington Weather Forecast

    • 59
    • 80

    Rain Showers

    • 63
    • 80

    Chance Rain Showers

    • 64
    • 76

    Rain Showers Likely

    • 59
    • 81

    Rain Showers Likely

    • 56
    • 80

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

Today 20 Aug Orange

Showers likely. Highs in the upper 70s. North Winds around 5 Mph. Chance of rain 70 percent.

Tonight 20 Aug Orange

Mostly cloudy. Showers likely with a slight chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Lows in the upper 50s. Northeast Winds around 5 Mph. Chance of rain 70 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

    74.3 °F

  • Highest 6 August, 2026

    89.6 °F

Climate (2021–2026)

Newburgh / Stewart (1.2 miles)

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  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    61.4 °F
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