Rainbow Falls Reservoir Weather Forecast

    • 57
    • 75

    Rain Showers

    • 53
    • 73

    Slight Chance Rain Showers

    • 54
    • 73

    Rain Showers Likely

    • 49
    • 72

    Rain Showers Likely

    • 47
    • 67

    Slight Chance Rain Showers

    • 49
    • 69

    Partly Sunny

Today 10 Aug Southeastern St. Lawrence

Patchy dense fog this morning. Partly sunny this Morning, then mostly cloudy with a chance of Showers and Thunderstorms this afternoon. Highs in the mid 70s. Light and variable Winds, becoming southwest around 10 Mph this afternoon. Chance of rain 50 percent.

Tonight 10 Aug Southeastern St. Lawrence

A chance of Thunderstorms. Showers. Lows in the upper 50s. Light and variable Winds. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Falls Reservoir Temperature Statistics

August Temperature

Massena, Massena International-Richards Field (29.2 miles)

  • Lowest 5 August, 2026

    54.6 °F

  • Average August

    72.3 °F

  • Highest 6 August, 2026

    87.7 °F

Climate (2021–2026)

Massena, Massena International-Richards Field (29.2 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    56 °F
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