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

Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Hazardous Weather Conditions

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Rain

55°F

13°C

Humidity 72%
Wind Speed S 10 G 17 mph
Barometer 29.35 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 16 Mar 11:55 am EDT
Extended Forecast for

2 Miles W Great Valley NY

Wind Advisory March 16, 12:32pm until March 16, 08:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 16, 12:32pm until March 16, 08:00pm

    NOW until 8:00pm Mon

    Wind Advisory

  • This Afternoon

    High: 60 °F⇓

    Showers

  • Tonight

    Tonight: Snow showers, mainly before 11pm. The snow could be heavy at times. Low around 15. West wind 10 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 15 °F

    Heavy Snow
    then Snow
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of snow showers. Mostly cloudy, with a high near 22. West wind 13 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New snow accumulation of 1 to 2 inches possible.

    High: 22 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: A chance of snow showers. Mostly cloudy, with a low around 14. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Low: 14 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 31. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 31 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A slight chance of snow showers. Mostly cloudy, with a low around 24. South wind around 6 mph. Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Snow Showers

  • Thursday

    Thursday: A chance of showers after 2pm. Mostly cloudy, with a high near 41. Southwest wind around 6 mph. Chance of precipitation is 40%.

    High: 41 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

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

    Low: 30 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Showers. Temperature falling to around 37 by 5pm. South wind 13 to 16 mph becoming west. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Snow showers, mainly before 11pm. The snow could be heavy at times. Low around 15. West wind 10 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Tuesday
A chance of snow showers. Mostly cloudy, with a high near 22. West wind 13 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 14. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Wednesday
Mostly cloudy, with a high near 31. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
A slight chance of snow showers. Mostly cloudy, with a low around 24. South wind around 6 mph. Chance of precipitation is 20%.
Thursday
A chance of showers after 2pm. Mostly cloudy, with a high near 41. Southwest wind around 6 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 30. Light southwest wind. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 45.
Friday Night
A chance of rain showers after 8pm, mixing with snow after 2am. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Saturday
A chance of rain and snow showers. Partly sunny, with a high near 43. Chance of precipitation is 40%.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 41. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Great Valley NY
 42.21°N 78.62°W (Elev. 1801 ft)
Last Update:
9:58 am EDT Mar 16, 2026
Forecast Valid:
12pm EDT Mar 16, 2026-6pm EDT Mar 22, 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