Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Delevan NY

  • Tonight

    Tonight: A chance of snow showers, mainly between 11pm and 4am.  Mostly cloudy, with a low around 10. Southwest wind 7 to 11 mph.  Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 10 °F

    Chance Snow
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 29. Southwest wind 6 to 9 mph, with gusts as high as 22 mph.

    High: 29 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of snow showers before 1pm, then a slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of snow showers after 4pm.  Mostly cloudy, with a high near 36. Southwest wind 10 to 16 mph, with gusts as high as 31 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 36 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23. West wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 25 mph.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain after 1pm.  Mostly cloudy, with a high near 44. South wind 14 to 16 mph, with gusts as high as 34 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain before 1am, then rain and snow.  Low around 21. South wind around 16 mph becoming west after midnight. Winds could gust as high as 33 mph.  Chance of precipitation is 100%.

    Low: 21 °F

    Rain then
    Rain/Snow

  • Friday

    Friday: Snow showers likely, mainly before 1pm.  Mostly cloudy, with a high near 31. West wind 11 to 16 mph, with gusts as high as 31 mph.  Chance of precipitation is 60%.

    High: 31 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of snow showers, mainly between 11pm and 4am. Mostly cloudy, with a low around 10. Southwest wind 7 to 11 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Partly sunny, with a high near 29. Southwest wind 6 to 9 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 23. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
A chance of snow showers before 1pm, then a slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of snow showers after 4pm. Mostly cloudy, with a high near 36. Southwest wind 10 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday Night
Mostly cloudy, with a low around 23. West wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 25 mph.
Thursday
A chance of rain after 1pm. Mostly cloudy, with a high near 44. South wind 14 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain before 1am, then rain and snow. Low around 21. South wind around 16 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%.
Friday
Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 31. West wind 11 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 13.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 33. Chance of precipitation is 30%.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 16. Chance of precipitation is 30%.
Monday
A chance of snow showers. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Delevan NY
 42.48°N 78.49°W (Elev. 1476 ft)
5:58 pm EST Dec 15, 2025
6pm EST Dec 15, 2025-6pm EST Dec 22, 2025
 
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