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

63°F

17°C

Humidity 60%
Wind Speed Calm
Barometer 30.18 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 7 Oct 12:35 am EDT
Extended Forecast for

Great Valley NY

  • Overnight

    Overnight: Partly cloudy, with a low around 57. South wind 3 to 5 mph.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly before noon, then showers likely and possibly a thunderstorm after 3pm. High near 69. Southwest wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 69 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 43. Southwest wind 5 to 7 mph becoming north in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers before 8am. Mostly sunny, with a high near 58. North wind 7 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Chance
    Showers then
    Sunny

  • Wednesday Night

    Wednesday Night: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. North wind 3 to 6 mph.

    Low: 30 °F

    Mostly Clear
    then Frost

  • Thursday

    Thursday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 56. Northeast wind 3 to 5 mph.

    High: 56 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 1am. Otherwise, clear, with a low around 29. Light southeast wind.

    Low: 29 °F

    Frost

  • Friday

    Friday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 62. South wind 3 to 6 mph.

    High: 62 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 57. South wind 3 to 5 mph.
Tuesday
Showers and thunderstorms, mainly before noon, then showers likely and possibly a thunderstorm after 3pm. High near 69. Southwest wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Low around 43. Southwest wind 5 to 7 mph becoming north in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers before 8am. Mostly sunny, with a high near 58. North wind 7 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. North wind 3 to 6 mph.
Thursday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 56. Northeast wind 3 to 5 mph.
Thursday Night
Widespread frost, mainly after 1am. Otherwise, clear, with a low around 29. Light southeast wind.
Friday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 62. South wind 3 to 6 mph.
Friday Night
Mostly clear, with a low around 34.
Saturday
Sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 41.
Columbus Day
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Valley NY
 42.21°N 78.6°W (Elev. 1558 ft)
Last Update:
10:36 pm EDT Oct 6, 2025
Forecast Valid:
12am EDT Oct 7, 2025-6pm EDT Oct 13, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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