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.

Fair

54°F

12°C

Humidity 77%
Wind Speed S 5 mph
Barometer 29.92 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 18 Apr 6:55 am EDT
Extended Forecast for

4 Miles ENE Great Valley NY

  • Today

    Today: A chance of showers, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 74. South wind 11 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Mostly Sunny
    then Heavy
    Rain

  • Tonight

    Tonight: Rain showers before 3am, then rain showers likely, possibly mixed with sleet. The rain could be heavy at times. Some thunder is also possible. Low around 34. West wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. Little or no sleet accumulation expected.

    Low: 34 °F

    Heavy Rain
    then
    Rain/Sleet

  • Sunday

    Sunday: A chance of snow showers, mainly before 2pm. Mostly cloudy, with a high near 42. West wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: A chance of snow showers, mainly before 2am. Mostly cloudy, with a low around 23. West wind 6 to 8 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow
    Showers

  • Monday

    Monday: A slight chance of snow showers. Partly sunny, with a high near 35. Northwest wind around 8 mph. Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Snow Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 20. Northwest wind around 5 mph becoming calm in the evening.

    Low: 20 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 38. Southwest wind around 7 mph. Chance of precipitation is 40%.

    Low: 38 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 74. South wind 11 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain showers before 3am, then rain showers likely, possibly mixed with sleet. The rain could be heavy at times. Some thunder is also possible. Low around 34. West wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. Little or no sleet accumulation expected.
Sunday
A chance of snow showers, mainly before 2pm. Mostly cloudy, with a high near 42. West wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Sunday Night
A chance of snow showers, mainly before 2am. Mostly cloudy, with a low around 23. West wind 6 to 8 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Monday
A slight chance of snow showers. Partly sunny, with a high near 35. Northwest wind around 8 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 20. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 52. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 38. Southwest wind around 7 mph. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 57.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 44.
Friday
A chance of showers. Mostly sunny, with a high near 68. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Great Valley NY
 42.24°N 78.53°W (Elev. 2100 ft)
Last Update:
7:58 am EDT Apr 18, 2026
Forecast Valid:
8am EDT Apr 18, 2026-6pm EDT Apr 24, 2026
 
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