Olean Weather Forecast

    • 51
    • 80

    Chance Thunderstorms

    • 47
    • 70

    Chance Rain Showers

    • 42
    • 66

    Rain Showers Likely

    • 43
    • 68

    Partly Sunny

    • 46
    • 71

    Mostly Cloudy

    • 43
    • 69

    Slight Chance Rain Showers

Today 24 Aug Cattaraugus

Mostly sunny. A chance of Showers early. A chance of Showers and Thunderstorms this afternoon. Highs in the mid 70s. Light Winds. Chance of rain 50 percent.

Tonight 24 Aug Cattaraugus

Partly cloudy in the Evening, then a chance of Showers overnight. Lows in the lower 50s. Light southwest Winds. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Olean Temperature Statistics

August Temperature

Bradford Regional Airport (22.4 miles)

  • Lowest 2 August, 2025

    41.6 °F

  • Average August

    66.7 °F

  • Highest 12 August, 2025

    89.7 °F

Climate (2020–Present)

Bradford Regional Airport (22.4 miles)

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  • Average Low 2020–2025

    39.4 °F

  • Average 2020–2025

    49 °F

  • Average High 2020–2025

    58.6 °F
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