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

73°F

23°C

Humidity 36%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 3 Oct 3:55 pm EDT
Extended Forecast for

Delevan NY

  • Tonight

    Tonight: Clear, with a low around 50. West wind 5 to 7 mph becoming calm after midnight.

    Low: 50 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 80. Calm wind.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 53. Light and variable wind.

    Low: 53 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 80. Light south wind.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 54. Calm wind becoming south around 6 mph after midnight.

    Low: 54 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 80. Southwest wind around 7 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: A chance of showers after 2am. Partly cloudy, with a low around 58. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 30%.

    Low: 58 °F

    Mostly Clear
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers, mainly after 8am. High near 72. Southwest wind 6 to 8 mph. Chance of precipitation is 80%.

    High: 72 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers, mainly before 2am. Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Showers

Detailed Forecast

Tonight
Clear, with a low around 50. West wind 5 to 7 mph becoming calm after midnight.
Saturday
Sunny, with a high near 80. Calm wind.
Saturday Night
Clear, with a low around 53. Light and variable wind.
Sunday
Sunny, with a high near 80. Light south wind.
Sunday Night
Clear, with a low around 54. Calm wind becoming south around 6 mph after midnight.
Monday
Sunny, with a high near 80. Southwest wind around 7 mph.
Monday Night
A chance of showers after 2am. Partly cloudy, with a low around 58. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 30%.
Tuesday
Showers, mainly after 8am. High near 72. Southwest wind 6 to 8 mph. Chance of precipitation is 80%.
Tuesday Night
Showers, mainly before 2am. Low around 44. Chance of precipitation is 80%.
Wednesday
A chance of showers before 8am. Mostly sunny, with a high near 58. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 59.
Thursday Night
Mostly clear, with a low around 40.
Friday
Mostly sunny, with a high near 64.
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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:
1:36 pm EDT Oct 3, 2025
Forecast Valid:
4pm EDT Oct 3, 2025-6pm EDT Oct 10, 2025
 
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