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

61°F

16°C

Humidity 72%
Wind Speed W 6 mph
Barometer 29.99 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 Oct 2:15 pm EDT
Extended Forecast for

Delevan NY

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 64. Northwest wind around 11 mph.

    High: 64 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. North wind 6 to 9 mph becoming south in the evening.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 62. East wind 3 to 5 mph.

    High: 62 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: A chance of showers, then showers and possibly a thunderstorm after 11pm. Low around 52. South wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 66. Southwest wind around 11 mph becoming west in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 2am. Cloudy, with a low around 32. Northwest wind around 8 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers before 8am. Mostly sunny, with a high near 44. Northwest wind around 9 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 44 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. Light southwest wind.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 64. Northwest wind around 11 mph.
Tonight
Mostly cloudy, with a low around 43. North wind 6 to 9 mph becoming south in the evening.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 62. East wind 3 to 5 mph.
Thursday Night
A chance of showers, then showers and possibly a thunderstorm after 11pm. Low around 52. South wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 66. Southwest wind around 11 mph becoming west in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Showers likely, mainly before 2am. Cloudy, with a low around 32. Northwest wind around 8 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of showers before 8am. Mostly sunny, with a high near 44. Northwest wind around 9 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 30. Light southwest wind.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 63.
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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:
2:22 pm EDT Oct 14, 2026
Forecast Valid:
2pm EDT Oct 14, 2026-6pm EDT Oct 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