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

Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Snow

25°F

-4°C

Humidity 100%
Wind Speed SE 6 mph
Barometer 30.14 in
Dewpoint 25°F (-4°C)
Visibility 0.75 mi
Wind Chill18°F (-8°C)
Last update 30 Nov 1:15 am EST
Extended Forecast for

Olean NY

  • Overnight

    Overnight: Snow, mainly before 3am. The snow could be heavy at times. Low around 25. South wind 9 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.

    Low: 25 °F

    Heavy Snow

  • Sunday

    Sunday: Rain and snow showers likely before 4pm, then a chance of snow showers. Mostly cloudy, with a high near 39. South wind 14 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Showers
    Likely then
    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Snow showers. Low around 19. Southwest wind 7 to 15 mph becoming northwest after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 19 °F

    Snow Showers

  • Monday

    Monday: Mostly sunny, with a high near 31. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Snow showers after 1am. Low around 17. Calm wind. Chance of precipitation is 80%.

    Low: 17 °F

    Mostly Cloudy
    then Snow
    Showers

  • Tuesday

    Tuesday: Snow showers, mainly before 1pm. High near 34. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 90%.

    High: 34 °F

    Snow Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16. Calm wind.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 33. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 33 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow showers. Mostly cloudy, with a low around 21. Chance of precipitation is 50%.

    Low: 21 °F

    Chance Snow
    Showers

Detailed Forecast

Overnight
Snow, mainly before 3am. The snow could be heavy at times. Low around 25. South wind 9 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Sunday
Rain and snow showers likely before 4pm, then a chance of snow showers. Mostly cloudy, with a high near 39. South wind 14 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow showers. Low around 19. Southwest wind 7 to 15 mph becoming northwest after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday
Mostly sunny, with a high near 31. Northwest wind around 6 mph becoming calm in the afternoon.
Monday Night
Snow showers after 1am. Low around 17. Calm wind. Chance of precipitation is 80%.
Tuesday
Snow showers, mainly before 1pm. High near 34. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 90%.
Tuesday Night
Mostly cloudy, with a low around 16. Calm wind.
Wednesday
Partly sunny, with a high near 33. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 21. Chance of precipitation is 50%.
Thursday
Snow showers. High near 31. Chance of precipitation is 80%.
Thursday Night
Mostly cloudy, with a low around 4.
Friday
A chance of snow showers. Partly sunny, with a high near 27. Chance of precipitation is 40%.
Friday Night
Snow showers likely. Mostly cloudy, with a low around 14. Chance of precipitation is 60%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 34. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Olean NY
 42.08°N 78.41°W (Elev. 1470 ft)
Last Update:
12:36 am EST Nov 30, 2025
Forecast Valid:
1am EST Nov 30, 2025-6pm EST Dec 6, 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