Waterloo Weather Forecast

    • 58
    • 89

    Rain Showers Likely

    • 43
    • 68

    Chance Rain Showers

    • 42
    • 56

    Partly Sunny

    • 47
    • 66

    Rain Showers Likely

    • 50
    • 63

    Rain Showers Likely

    • 53
    • 69

    Chance Rain Showers

Today 19 May Seneca

Partly sunny. A chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

Tonight 19 May Seneca

Partly cloudy with a chance of Showers and Thunderstorms. Lows in the upper 50s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Waterloo Temperature Statistics

May Temperature

Penn Yan, Penn Yan Airport (19.9 miles)

  • Lowest 7 May, 2026

    32 °F

  • Average May

    50 °F

  • Highest 16 May, 2026

    79 °F

Climate (2021–Present)

Penn Yan, Penn Yan Airport (19.9 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    59.1 °F
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