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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Delevan NY

  • Tonight

    Tonight: Snow showers likely, mainly after 3am. Mostly cloudy, with a low around 30. Northwest wind 5 to 7 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 30 °F

    Snow Showers
    Likely

  • Saturday

    Saturday: Snow showers likely before 10am, then rain and snow showers likely between 10am and noon, then rain showers after noon. High near 39. Northwest wind 8 to 11 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow
    Likely then
    Showers

  • Saturday Night

    Saturday Night: Rain and snow showers, becoming all snow after 7pm. Low around 31. Northwest wind 6 to 10 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow
    then Snow
    Showers

  • Sunday

    Sunday: A chance of snow showers before 10am, then a chance of rain and snow showers between 10am and 11am, then a chance of rain showers after 11am. Mostly cloudy, with a high near 40. Northwest wind around 7 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Chance
    Rain/Snow
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32. Light northwest wind.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 45. Calm wind becoming northwest around 6 mph in the morning.

    High: 45 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. Light southwest wind.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51. West wind 3 to 6 mph.

    High: 51 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Snow showers likely, mainly after 3am. Mostly cloudy, with a low around 30. Northwest wind 5 to 7 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow showers likely before 10am, then rain and snow showers likely between 10am and noon, then rain showers after noon. High near 39. Northwest wind 8 to 11 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Saturday Night
Rain and snow showers, becoming all snow after 7pm. Low around 31. Northwest wind 6 to 10 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday
A chance of snow showers before 10am, then a chance of rain and snow showers between 10am and 11am, then a chance of rain showers after 11am. Mostly cloudy, with a high near 40. Northwest wind around 7 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around 32. Light northwest wind.
Monday
Partly sunny, with a high near 45. Calm wind becoming northwest around 6 mph in the morning.
Monday Night
Partly cloudy, with a low around 31. Light southwest wind.
Tuesday
Mostly sunny, with a high near 51. West wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 32.
Wednesday
Sunny, with a high near 54.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Mostly cloudy, with a low around 38.
Friday
Partly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Delevan NY
 42.48°N 78.46°W (Elev. 1542 ft)
Last Update:
3:57 pm EST Nov 13, 2026
Forecast Valid:
6pm EST Nov 13, 2026-6pm EST Nov 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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