Harriet Hollister Spencer Weather Forecast

    • 63
    • 78

    Slight Chance Rain Showers

    • 68
    • 85

    Slight Chance Thunderstorms

    • 59
    • 81

    Chance Rain Showers

    • 40
    • 64

    Chance Rain Showers

    • 42
    • 54

    Partly Sunny

    • 49
    • 62

    Chance Rain Showers

    • 52
    • 64

    Chance Rain Showers

Today 17 May Ontario

Mostly sunny and warm with Highs Ranging from the upper 70s on the Hilltops to the lower 80s across the lower Elevations. West Winds 10 to 15 Mph, becoming northwest.

Tonight 17 May Ontario

Partly cloudy with a chance of Showers and Thunderstorms Early, then mostly cloudy from late evening on. Warm with Lows in the lower 60s. Light Winds. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harriet Hollister Spencer Temperature Statistics

May Temperature

Wellsville, Wellsville Municipal Airport (46 miles)

  • Lowest 2 May, 2026

    28.9 °F

  • Average May

    46.8 °F

  • Highest 4 May, 2026

    70 °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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