Rainbow Falls Reservoir Weather Forecast

    • 32
    • 54

    Rain Showers Likely

    • 40
    • 55

    Mostly Sunny

    • 48
    • 63

    Rain Showers Likely

    • 47
    • 62

    Rain Showers Likely

    • 39
    • 57

    Rain Showers Likely

    • 36
    • 52

    Partly Sunny

Today 9 Oct Southeastern St. Lawrence

Mostly cloudy with a 50 percent chance of Showers. Highs in the mid 50s.

Tonight 9 Oct Southeastern St. Lawrence

Partly cloudy with a slight chance of rain Showers until Midnight, then clear after midnight. Patchy frost after midnight. Lows in the lower 30s. West Winds around 10 Mph until Midnight, becoming light and variable. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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Rainbow Falls Reservoir Temperature Statistics

October Temperature

Massena, Massena International-Richards Field (29.2 miles)

  • Lowest 4 October, 2026

    35.1 °F

  • Average October

    53.2 °F

  • Highest 1 October, 2026

    68.6 °F

Climate (2021–2026)

Massena, Massena International-Richards Field (29.2 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    55.9 °F
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