Olean Weather Forecast

    • 3
    • 22

    Increasing Clouds

    • 25
    • 33

    Rain/Snow

    • 21
    • 39

    Rain/Snow

    • 16
    • 29

    Snow Showers Likely

    • 12
    • 28

    Snow Showers Likely

    • 11
    • 23

    Snow Showers Likely

Today 8 Dec Cattaraugus

Mostly sunny and Colder with Highs 15 to 20. Light northeast Winds.

Tonight 8 Dec Cattaraugus

Partly cloudy and cold with Lows zero to 5 above. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Olean Temperature Statistics

December Temperature

Bradford Regional Airport (22.4 miles)

  • Lowest 5 December, 2025

    -6 °F

  • Average December

    20.3 °F

  • Highest 2 December, 2025

    28 °F

Climate (2020–Present)

Bradford Regional Airport (22.4 miles)

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  • Average Low 2020–2025

    39.1 °F

  • Average 2020–2025

    48.8 °F

  • Average High 2020–2025

    58.4 °F
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