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

54°F

12°C

Humidity 82%
Wind Speed S 3 mph
Barometer 30.26 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 4 Oct 1:35 am EDT
Extended Forecast for

Delevan NY

  • Overnight

    Overnight: Clear, with a low around 49. South wind 3 to 5 mph.

    Low: 49 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 80. South wind around 5 mph becoming calm in the morning.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 53. Calm wind becoming south around 5 mph after midnight.

    Low: 53 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 80. South wind 3 to 5 mph.

    High: 80 °F

    Sunny

  • Sunday Night

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

    Low: 54 °F

    Mostly Clear

  • Monday

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

    High: 80 °F

    Mostly 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 40%.

    Low: 58 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers after 2pm. High near 71. Southwest wind 7 to 9 mph. Chance of precipitation is 90%.

    High: 71 °F

    Showers
    Likely then
    Showers

  • Tuesday Night

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

    Low: 44 °F

    Showers

Detailed Forecast

Overnight
Clear, with a low around 49. South wind 3 to 5 mph.
Saturday
Sunny, with a high near 80. South wind around 5 mph becoming calm in the morning.
Saturday Night
Clear, with a low around 53. Calm wind becoming south around 5 mph after midnight.
Sunday
Sunny, with a high near 80. South wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 54. Calm wind becoming south around 6 mph after midnight.
Monday
Mostly 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 40%.
Tuesday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers after 2pm. High near 71. Southwest wind 7 to 9 mph. Chance of precipitation is 90%.
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 56. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 36.
Friday
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 78.46°W (Elev. 1542 ft)
Last Update:
1:35 am EDT Oct 4, 2025
Forecast Valid:
1am EDT Oct 4, 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