National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Fair

37°F

3°C

Humidity 65%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 17 Oct 12:35 am EDT
Extended Forecast for

Great Valley NY

  • Overnight

    Overnight: Mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 56. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 41. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers before 2pm. Partly sunny, with a high near 67. South wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 67 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 50. South wind around 7 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 5pm. High near 66. South wind 10 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 42. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    Low: 42 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 8am. Partly sunny, with a high near 53. West wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.

    Low: 38 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 30. Calm wind.
Friday
Mostly sunny, with a high near 56. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
A chance of showers. Mostly cloudy, with a low around 41. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A slight chance of showers before 2pm. Partly sunny, with a high near 67. South wind 3 to 7 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 50. South wind around 7 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers, with thunderstorms also possible after 5pm. High near 66. South wind 10 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 42. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Monday
Showers likely, mainly before 8am. Partly sunny, with a high near 53. West wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Tuesday
Showers likely, mainly after 2pm. Partly sunny, with a high near 59. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.
Wednesday
Showers likely. Mostly cloudy, with a high near 48. Chance of precipitation is 60%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 36. Chance of precipitation is 50%.
Thursday
A chance of showers. Mostly cloudy, with a high near 49. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Valley NY
 42.23°N 78.59°W (Elev. 1877 ft)
Last Update:
10:35 pm EDT Oct 16, 2025
Forecast Valid:
12am EDT Oct 17, 2025-6pm EDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation