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.

Light Snow

32°F

0°C

Humidity 93%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 30°F (-1°C)
Visibility 1.25 mi
Last update 5 Apr 7:15 pm EDT
Extended Forecast for

Delevan NY

  • Tonight

    Tonight: Rain and snow showers likely, becoming all snow after 8pm. Cloudy, with a low around 29. Breezy, with a west wind 14 to 20 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

    Low: 29 °F

    Rain/Snow
    Likely and
    Breezy then
    Chance Snow
    Showers

  • Monday

    Monday: Snow showers likely, mainly between 9am and 3pm. Mostly cloudy, with a high near 40. West wind 11 to 14 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Snow Showers
    Likely

  • Monday Night

    Monday Night: Snow showers. Low around 23. West wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Snow Showers

  • Tuesday

    Tuesday: Snow showers likely, mainly before 1pm. Partly sunny, with a high near 31. Northwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 31 °F

    Snow Showers
    Likely then
    Chance Snow
    Showers

  • Tuesday Night

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

    Low: 17 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 49. Calm wind becoming south around 6 mph in the afternoon.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35. South wind 5 to 9 mph, with gusts as high as 22 mph.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 62. South wind around 11 mph, with gusts as high as 24 mph.

    High: 62 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers

Detailed Forecast

Tonight
Rain and snow showers likely, becoming all snow after 8pm. Cloudy, with a low around 29. Breezy, with a west wind 14 to 20 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.
Monday
Snow showers likely, mainly between 9am and 3pm. Mostly cloudy, with a high near 40. West wind 11 to 14 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday Night
Snow showers. Low around 23. West wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Snow showers likely, mainly before 1pm. Partly sunny, with a high near 31. Northwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night
Mostly clear, with a low around 17. Calm wind.
Wednesday
Sunny, with a high near 49. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 35. South wind 5 to 9 mph, with gusts as high as 22 mph.
Thursday
Partly sunny, with a high near 62. South wind around 11 mph, with gusts as high as 24 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 63. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 59. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 40%.
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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:
7:00 pm EDT Apr 5, 2026
Forecast Valid:
7pm EDT Apr 5, 2026-6pm EDT Apr 12, 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