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 100%
Wind Speed W 3 mph
Barometer 29.97 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 10 Nov 10:55 pm EST
Extended Forecast for

Delevan NY

  • Tonight

    Tonight: Partly cloudy, with a low around 37. Light southwest wind.

    Low: 37 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Mostly cloudy, with a high near 54. Light and variable wind.

    High: 54 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Showers, mainly after 1am. Low around 38. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: Showers. High near 45. North wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Showers

  • Thursday Night

    Thursday Night: Snow showers likely, possibly mixed with rain, becoming all snow after 10pm. Cloudy, with a low around 29. North wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 29 °F

    Rain/Snow
    Likely then
    Snow Showers
    Likely

  • Friday

    Friday: A chance of snow showers. Mostly cloudy, with a high near 37. Northwest wind around 7 mph. Chance of precipitation is 40%.

    High: 37 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A chance of snow showers. Mostly cloudy, with a low around 28. Northwest wind around 6 mph. Chance of precipitation is 50%.

    Low: 28 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of snow showers. Mostly cloudy, with a high near 37. Northwest wind 7 to 9 mph. Chance of precipitation is 50%.

    High: 37 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: A chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 37. Light southwest wind.
Veterans Day
Mostly cloudy, with a high near 54. Light and variable wind.
Wednesday Night
Showers, mainly after 1am. Low around 38. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers. High near 45. North wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Snow showers likely, possibly mixed with rain, becoming all snow after 10pm. Cloudy, with a low around 29. North wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of snow showers. Mostly cloudy, with a high near 37. Northwest wind around 7 mph. Chance of precipitation is 40%.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 28. Northwest wind around 6 mph. Chance of precipitation is 50%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 37. Northwest wind 7 to 9 mph. Chance of precipitation is 50%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Sunday
Mostly cloudy, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Mostly cloudy, with a high near 42.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Delevan NY
 42.48°N 78.49°W (Elev. 1476 ft)
Last Update:
9:58 pm EST Nov 10, 2026
Forecast Valid:
11pm EST Nov 10, 2026-6pm EST Nov 17, 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