Niagara Falls Weather Forecast

    • 20
    • 27

    Mostly Cloudy

    • 30
    • 36

    Rain/Snow

    • 27
    • 40

    Chance Rain/Snow

    • 28
    • 36

    Slight Chance Rain Showers

    • 36
    • 43

    Rain Showers Likely

    • 26
    • 43

    Chance Snow Showers

    • 24
    • 39

    Chance Rain/Snow

Today 21 Dec Niagara

Mostly cloudy with a 40 percent chance of snow Showers. Windy with Highs in the upper 20s. West Winds 15 to 30 Mph with Gusts up to 45 Mph.

Tonight 21 Dec Niagara

Mostly cloudy with a chance of snow Showers Early, then mostly cloudy from late evening on. Lows 20 to 25. West Winds 10 to 15 Mph with Gusts up to 30 Mph this Evening, becoming southwest 5 to 10 Mph. Chance of snow 40 percent.

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Niagara Falls Temperature Statistics

December Temperature

Niagara Falls, Niagara Falls International Airport (5 miles)

  • Lowest 8 December, 2025

    6.1 °F

  • Average December

    26.3 °F

  • Highest 18 December, 2025

    54 °F

Climate (2020–Present)

Niagara Falls, Niagara Falls International Airport (5 miles)

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  • Average Low 2020–2025

    43.2 °F

  • Average 2020–2025

    51.6 °F

  • Average High 2020–2025

    59.9 °F
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