Rainbow Falls Reservoir Weather Forecast

    • 51
    • 68

    Chance Rain Showers

    • 47
    • 70

    Mostly Sunny

    • 47
    • 72

    Mostly Sunny

    • 48
    • 75

    Mostly Sunny

    • 53
    • 78

    Partly Sunny

    • 53
    • 79

    Slight Chance Rain Showers

    • 47
    • 75

    Partly Sunny

Today 13 Sep Southeastern St. Lawrence

Partly sunny with a 20 percent chance of Showers. Near steady temperature in the upper 60s. West Winds around 10 Mph.

Tonight 13 Sep Southeastern St. Lawrence

Partly cloudy with a 20 percent chance of Showers. Patchy fog after midnight. Lows in the lower 50s. Light and variable Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Falls Reservoir Temperature Statistics

September Temperature

Massena, Massena International-Richards Field (29.2 miles)

  • Lowest 9 September, 2025

    39.9 °F

  • Average September

    60.4 °F

  • Highest 4 September, 2025

    84 °F

Climate (2020–Present)

Massena, Massena International-Richards Field (29.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    56.3 °F
Get WillyWeather+ to remove ads