Rainbow Falls Reservoir Weather Forecast

    • 37
    • 44

    Mostly Cloudy

    • 42
    • 51

    Mostly Cloudy

    • 41
    • 56

    Rain Showers Likely

    • 40
    • 50

    Rain Showers Likely

    • 41
    • 51

    Rain Showers

    • 41
    • 53

    Rain Showers Likely

Today 19 May Southeastern St. Lawrence

Cloudy. Highs in the mid 40s. Northwest Winds around 10 Mph.

Tonight 19 May Southeastern St. Lawrence

Mostly cloudy until Midnight, then becoming partly cloudy. Lows in the upper 30s. North Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Falls Reservoir Temperature Statistics

May Temperature

Massena, Massena International-Richards Field (29.2 miles)

  • Lowest 1 May, 2025

    28.9 °F

  • Average May

    58.1 °F

  • Highest 16 May, 2025

    83.6 °F

Climate (2020–Present)

Massena, Massena International-Richards Field (29.2 miles)

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  • Average Low 2020–2025

    36.8 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    56.3 °F
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