Rainbow Falls Reservoir Weather Forecast

    • 40
    • 51

    Rain Showers

    • 49
    • 60

    Rain Showers

    • 51
    • 64

    Rain Showers

    • 53
    • 64

    Rain Showers Likely

    • 50
    • 68

    Rain Showers Likely

    • 48
    • 64

    Partly Sunny

Today 12 Apr Southeastern St. Lawrence

Partly sunny this Morning, then mostly cloudy with rain Showers likely this afternoon. Highs in the lower 50s. Light and variable Winds, becoming south around 10 Mph this afternoon. Chance of rain 60 percent.

Tonight 12 Apr Southeastern St. Lawrence

Showers. Lows in the lower 40s. Temperature rising to around 50 after midnight. South Winds 15 to 20 Mph. Gusts up to 30 Mph, increasing to 40 Mph after midnight. Chance of rain near 100 percent.

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Rainbow Falls Reservoir Temperature Statistics

April Temperature

Massena, Massena International-Richards Field (29.2 miles)

  • Lowest 8 April, 2026

    15.7 °F

  • Average April

    40.3 °F

  • Highest 3 April, 2026

    72.6 °F

Climate (2021–Present)

Massena, Massena International-Richards Field (29.2 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    46.1 °F

  • Average High 2021–2026

    55.8 °F
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