Olean Weather Forecast

    • 41
    • 50

    Mostly Cloudy

    • 28
    • 64

    Rain Showers

    • 21
    • 38

    Mostly Cloudy

    • 29
    • 48

    Slight Chance Snow Showers

    • 30
    • 48

    Slight Chance Rain/Snow

    • 29
    • 55

    Rain Showers Likely

Today 21 Mar Cattaraugus

Mostly cloudy. Highs in the upper 40s. Light Winds.

Tonight 21 Mar Cattaraugus

Mostly cloudy. A chance of Showers late. Lows around 40. Light Winds, becoming south 10 to 15 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Olean Temperature Statistics

March Temperature

Bradford Regional Airport (22.4 miles)

  • Lowest 2 March, 2026

    6.7 °F

  • Average March

    38.1 °F

  • Highest 7 March, 2026

    71.1 °F

Climate (2021–Present)

Bradford Regional Airport (22.4 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    58.3 °F
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