Harriet Hollister Spencer Weather Forecast

    • 48
    • 65

    Partly Sunny

    • 46
    • 63

    Mostly Sunny

    • 49
    • 66

    Mostly Sunny

    • 52
    • 70

    Mostly Sunny

    • 58
    • 74

    Partly Sunny

    • 60
    • 76

    Mostly Cloudy

    • 60
    • 74

    Chance Thunderstorms

Today 31 May Ontario

Mostly sunny. Highs Ranging from the mid 60s on the Hilltops to the lower 70s across the lower Elevations. Northwest Winds 10 to 15 Mph.

Tonight 31 May Ontario

Partly cloudy. Lows in the upper 40s. West Winds 10 to 15 Mph, becoming light.

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Harriet Hollister Spencer Temperature Statistics

May Temperature

Wellsville, Wellsville Municipal Airport (46 miles)

  • Lowest 2 May, 2026

    28.9 °F

  • Average May

    53.1 °F

  • Highest 18 May, 2026

    86 °F

Climate (2021–Present)

Wellsville, Wellsville Municipal Airport (46 miles)

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  • Average Low 2021–2026

    40.1 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    57.1 °F
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