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

28°C

82°F

Humidity 58%
Wind Speed SW 7 km/h
Barometer 30.05 in
Dewpoint 19°C (66°F)
Visibility 16 km
Heat Index29°C (84°F)
Last update 13 Jul 2:55 pm EDT
Extended Forecast for

Great Valley NY

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly between 4pm and 5pm. Partly sunny, with a high near 28. Southwest wind around 10 km/h. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 28 °C

    T-storms
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 11pm. Patchy fog before 2am, then patchy fog after 3am. Otherwise, partly cloudy, with a low around 18. Calm wind. Chance of precipitation is 50%. New rainfall amounts between 2.5 and 5 mm possible.

    Low: 18 °C

    Chance
    T-storms then
    Slight Chance
    T-storms and
    Patchy Fog

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 27. Calm wind. Chance of precipitation is 30%.

    High: 27 °C

    Chance
    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: Mostly clear, with a low around 17. Calm wind.

    Low: 17 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 29. Calm wind.

    High: 29 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 19. Calm wind.

    Low: 19 °C

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 29. Southwest wind 3 to 8 km/h. Chance of precipitation is 50%.

    High: 29 °C

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 40%.

    Low: 19 °C

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 28. Chance of precipitation is 70%.

    High: 28 °C

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly between 4pm and 5pm. Partly sunny, with a high near 28. Southwest wind around 10 km/h. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.
Tonight
A chance of showers and thunderstorms, mainly before 11pm. Patchy fog before 2am, then patchy fog after 3am. Otherwise, partly cloudy, with a low around 18. Calm wind. Chance of precipitation is 50%. New rainfall amounts between 2.5 and 5 mm possible.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 27. Calm wind. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 17. Calm wind.
Tuesday
Sunny, with a high near 29. Calm wind.
Tuesday Night
Partly cloudy, with a low around 19. Calm wind.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 29. Southwest wind 3 to 8 km/h. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 28. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.
Friday
Showers likely. Mostly cloudy, with a high near 26. Chance of precipitation is 60%.
Friday Night
Showers likely. Mostly cloudy, with a low around 17. Chance of precipitation is 60%.
Saturday
A chance of showers. Partly sunny, with a high near 26. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 16. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 26.
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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 m)
Last Update:
1:36 pm EDT Jul 13, 2025
Forecast Valid:
3pm EDT Jul 13, 2025-6pm EDT Jul 20, 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