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.

Overcast

70°F

21°C

Humidity 43%
Wind Speed S 9 mph
Barometer 29.95 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 4 Nov 2:35 pm EST
Extended Forecast for

Delevan NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 74. South wind around 11 mph.

    High: 74 °F

    Partly Sunny

  • Tonight

    Tonight: Showers, mainly after 1am. Low around 57. South wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: A chance of showers, mainly before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 65. Southwest wind 7 to 13 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 47. Light southwest wind.

    Low: 47 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 58. Southwest wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely. Mostly cloudy, with a low around 40. Light west wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely. Mostly cloudy, with a high near 49. West wind 3 to 7 mph. Chance of precipitation is 70%.

    High: 49 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers before 1am. Mostly cloudy, with a low around 36. Northwest wind around 7 mph. Chance of precipitation is 50%.

    Low: 36 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 74. South wind around 11 mph.
Tonight
Showers, mainly after 1am. Low around 57. South wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of showers, mainly before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 65. Southwest wind 7 to 13 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 47. Light southwest wind.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 58. Southwest wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely. Mostly cloudy, with a low around 40. Light west wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely. Mostly cloudy, with a high near 49. West wind 3 to 7 mph. Chance of precipitation is 70%.
Saturday Night
A chance of showers before 1am. Mostly cloudy, with a low around 36. Northwest wind around 7 mph. Chance of precipitation is 50%.
Sunday
Partly sunny, with a high near 50.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.
Monday
A chance of showers. Mostly sunny, with a high near 50. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Mostly sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Delevan NY
 42.48°N 78.49°W (Elev. 1476 ft)
Last Update:
1:22 pm EST Nov 4, 2026
Forecast Valid:
2pm EST Nov 4, 2026-6pm EST Nov 10, 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