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

41°F

5°C

Humidity 87%
Wind Speed NE 8 mph
Barometer 30.28 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 21 May 8:35 am EDT
Extended Forecast for

Great Valley NY

  • Today

    Today: Partly sunny, with a high near 61. Northeast wind around 6 mph.

    High: 61 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. East wind 3 to 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 67. East wind 5 to 7 mph.

    High: 67 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers, mainly after 2am. Low around 44. Southeast wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Slight Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers. High near 53. Southeast wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 53 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 2am. Cloudy, with a low around 46. Southeast wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 72. South wind around 6 mph. Chance of precipitation is 40%.

    High: 72 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Memorial Day

    Memorial Day: Showers likely, mainly before 8am. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 61. Northeast wind around 6 mph.
Tonight
Partly cloudy, with a low around 39. East wind 3 to 5 mph.
Friday
Partly sunny, with a high near 67. East wind 5 to 7 mph.
Friday Night
Showers, mainly after 2am. Low around 44. Southeast wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers. High near 53. Southeast wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Showers likely, mainly before 2am. Cloudy, with a low around 46. Southeast wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 72. South wind around 6 mph. Chance of precipitation is 40%.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 60%.
Memorial Day
Showers likely, mainly before 8am. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 53.
Tuesday
Partly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Valley NY
 42.21°N 78.6°W (Elev. 1558 ft)
Last Update:
7:57 am EDT May 21, 2026
Forecast Valid:
8am EDT May 21, 2026-6pm EDT May 27, 2026
 
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