National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines
Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Overcast

61°F

16°C

Humidity 100%
Wind Speed Calm
Barometer 30.16 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 15 Jun 10:15 pm EDT
Extended Forecast for

Delevan NY

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 59. Southeast wind around 5 mph.

    Low: 59 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: A slight chance of showers after 1pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 74. South wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 74 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 61. Southeast wind around 8 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 76. South wind 7 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 66. Southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. West wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Juneteenth

    Juneteenth: Showers likely, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 78. West wind around 11 mph. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers before 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 59. Southeast wind around 5 mph.
Monday
A slight chance of showers after 1pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 74. South wind 6 to 8 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 61. Southeast wind around 8 mph. Chance of precipitation is 20%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 76. South wind 7 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 66. Southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. West wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.
Juneteenth
Showers likely, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 78. West wind around 11 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Delevan NY
 42.48°N 78.49°W (Elev. 1476 ft)
Last Update:
8:12 pm EDT Jun 15, 2025
Forecast Valid:
10pm EDT Jun 15, 2025-6pm EDT Jun 22, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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