National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Overcast

21°F

-6°C

Humidity 68%
Wind Speed SW 8 G 16 mph
Barometer 29.96 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 17 Jan 9:35 pm EST
Extended Forecast for

Delevan NY

Winter Storm Warning January 19, 07:00am until January 21, 04:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Tonight

    Tonight: A chance of snow showers, mainly between 1am and 5am. Mostly cloudy, with a low around 13. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 13 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 19. Southwest wind 9 to 14 mph.

    High: 19 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of snow showers after 1am. Mostly cloudy, with a low around 11. Southwest wind 8 to 13 mph. Chance of precipitation is 20%.

    Low: 11 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • M.L.King Day

    M.L.King Day: A slight chance of snow showers before 1pm, then snow after 1pm. Areas of blowing snow after 1pm. High near 21. West wind 8 to 14 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 21 °F

    Slight Chance
    Snow Showers
    then Snow and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: Snow likely before 1am, then a chance of snow showers after 1am. Mostly cloudy, with a low around 3. West wind around 11 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    Low: 3 °F

    Snow Likely

  • Tuesday

    Tuesday: A chance of snow showers. Mostly cloudy and cold, with a high near 10. West wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 10 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: A chance of snow showers. Mostly cloudy, with a low around 3. Southwest wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 3 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: Snow likely. Mostly cloudy, with a high near 28. South wind 8 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    High: 28 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 60%.

    Low: 16 °F

    Snow Showers
    Likely

Detailed Forecast

Tonight
A chance of snow showers, mainly between 1am and 5am. Mostly cloudy, with a low around 13. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Mostly sunny, with a high near 19. Southwest wind 9 to 14 mph.
Sunday Night
A slight chance of snow showers after 1am. Mostly cloudy, with a low around 11. Southwest wind 8 to 13 mph. Chance of precipitation is 20%.
M.L.King Day
A slight chance of snow showers before 1pm, then snow after 1pm. Areas of blowing snow after 1pm. High near 21. West wind 8 to 14 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Monday Night
Snow likely before 1am, then a chance of snow showers after 1am. Mostly cloudy, with a low around 3. West wind around 11 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Tuesday
A chance of snow showers. Mostly cloudy and cold, with a high near 10. West wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 3. Southwest wind 6 to 8 mph. Chance of precipitation is 30%.
Wednesday
Snow likely. Mostly cloudy, with a high near 28. South wind 8 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Wednesday Night
Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 60%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 20. Chance of precipitation is 50%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 7. Chance of precipitation is 30%.
Friday
A chance of snow showers. Mostly cloudy, with a high near 21. Chance of precipitation is 30%.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 8. Chance of precipitation is 40%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 17. Chance of precipitation is 40%.
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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:
9:36 pm EST Jan 17, 2026
Forecast Valid:
9pm EST Jan 17, 2026-6pm EST Jan 24, 2026
 
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