Rainbow Falls Reservoir Weather Forecast

    • 6
    • 27

    Snow Showers Likely

    • 1
    • 14

    Slight Chance Snow Showers

    • 8
    • 18

    Snow Showers Likely

    • 16
    • 24

    Chance Snow Showers

    • 19
    • 33

    Chance Rain/Snow

    • 16
    • 40

    Rain Likely

Today 13 Dec Southeastern St. Lawrence

Mostly cloudy with a 50 percent chance of snow Showers. Snow accumulation around an inch possible. Highs in the upper 20s. Southwest Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 13 Dec Southeastern St. Lawrence

Mostly cloudy. A chance of snow Showers, mainly until midnight. Total snow accumulation of 1 to 3 Inches possible. Lows around 7 above. Southwest Winds around 10 Mph with Gusts up to 25 Mph until Midnight, becoming light and variable. Chance of snow 50 percent.

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Rainbow Falls Reservoir Temperature Statistics

December Temperature

Massena, Massena International-Richards Field (29.2 miles)

  • Lowest 9 December, 2025

    -14.1 °F

  • Average December

    17.1 °F

  • Highest 3 December, 2025

    33.1 °F

Climate (2020–Present)

Massena, Massena International-Richards Field (29.2 miles)

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  • Average Low 2020–2025

    36.6 °F

  • Average 2020–2025

    46.6 °F

  • Average High 2020–2025

    56.2 °F
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