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

Hazardous Weather Conditions

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Partly Cloudy

43°F

6°C

Humidity 36%
Wind Speed SW 3 mph
Barometer 30.11 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 30 Mar 2:15 am EDT
Extended Forecast for

Great Valley NY

  • Overnight

    Overnight: Partly cloudy, with a low around 39. Southwest wind around 6 mph.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers, mainly after 4pm. Mostly cloudy, with a high near 58. Southwest wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers, with thunderstorms also possible after 11pm. Low around 50. Southwest wind 6 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. High near 67. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 67 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Some of the storms could produce heavy rainfall. Low around 44. Southwest wind 8 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 44 °F

    Heavy Rain

  • Wednesday

    Wednesday: Showers, mainly before 8am. High near 54. West wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Showers then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 38. Light east wind. Chance of precipitation is 70%.

    Low: 38 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers. High near 64. South wind 6 to 8 mph. Chance of precipitation is 80%.

    High: 64 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 39. Southwest wind around 6 mph.
Monday
A chance of showers, mainly after 4pm. Mostly cloudy, with a high near 58. Southwest wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Showers, with thunderstorms also possible after 11pm. Low around 50. Southwest wind 6 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. High near 67. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Some of the storms could produce heavy rainfall. Low around 44. Southwest wind 8 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers, mainly before 8am. High near 54. West wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 38. Light east wind. Chance of precipitation is 70%.
Thursday
Showers. High near 64. South wind 6 to 8 mph. Chance of precipitation is 80%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Friday
Showers. High near 68. Chance of precipitation is 80%.
Friday Night
Showers. Low around 52. Chance of precipitation is 80%.
Saturday
Showers likely. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Sunday
Showers likely. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
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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:
2:22 am EDT Mar 30, 2026
Forecast Valid:
2am EDT Mar 30, 2026-6pm EDT Apr 5, 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