Olean Weather Forecast

    • 9
    • 27

    Snow

    • 12
    • 19

    Chance Snow Showers

    • 14
    • 25

    Chance Snow Showers

    • 14
    • 24

    Chance Snow Showers

    • 14
    • 26

    Chance Snow Showers

    • 21
    • 32

    Chance Freezing Rain

Today 31 Dec Cattaraugus

Lake effect snow. Snow may be heavy at Times. Additional accumulation 2 to 4 Inches in the most persistent Snows. Highs in the mid 20s. Southwest Winds 5 to 10 Mph. Chance of snow near 100 percent.

Tonight 31 Dec Cattaraugus

Lake effect snow. Snow may be heavy at Times. Additional accumulation 3 to 6 Inches in the most persistent Snows. Lows 5 to 10 above. West Winds 10 to 15 Mph, becoming northwest 5 to 10 Mph. Chance of snow near 100 percent.

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Olean Temperature Statistics

December Temperature

Bradford Regional Airport (22.4 miles)

  • Lowest 9 December, 2025

    -11.9 °F

  • Average December

    23.4 °F

  • Highest 29 December, 2025

    50 °F

Climate (2020–Present)

Bradford Regional Airport (22.4 miles)

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  • Average Low 2020–2025

    39 °F

  • Average 2020–2025

    48.8 °F

  • Average High 2020–2025

    58.4 °F
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