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.

Overcast

54°F

12°C

Humidity 82%
Wind Speed S 14 G 22 mph
Barometer 29.37 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 16 Mar 10:15 am EDT
Extended Forecast for

2 Miles SE Portville NY

Wind Advisory March 16, 10:30am until March 16, 08:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 16, 10:30am until March 16, 08:00pm

    NOW until 8:00pm Mon

    Wind Advisory

  • Today

    High: 63 °F⇓

    Chance
    Showers then
    Showers

  • Tonight

    Tonight: Snow showers and sleet, possibly mixed with rain showers before 8pm, then snow showers, possibly mixed with rain between 8pm and 9pm, then snow showers likely after 9pm. The snow could be heavy at times. Low around 16. West wind 10 to 13 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.

    Low: 16 °F

    Wintry Mix
    then Chance
    Snow Showers

  • Tuesday

    Tuesday: A slight chance of snow showers. Mostly cloudy, with a high near 26. West wind 14 to 16 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

    High: 26 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers. Mostly cloudy, with a low around 15. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    Low: 15 °F

    Slight Chance
    Snow Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 35. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 35 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A slight chance of snow showers after 2am. Mostly cloudy, with a low around 24. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 24 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: A chance of showers after 2pm. Mostly cloudy, with a high near 45. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 45 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 2am. Mostly cloudy, with a low around 31. Southwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Showers

Detailed Forecast

Today
Showers, mainly after noon. Temperature rising to near 63 by noon, then falling to around 43 during the remainder of the day. Southwest wind 13 to 16 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Snow showers and sleet, possibly mixed with rain showers before 8pm, then snow showers, possibly mixed with rain between 8pm and 9pm, then snow showers likely after 9pm. The snow could be heavy at times. Low around 16. West wind 10 to 13 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Tuesday
A slight chance of snow showers. Mostly cloudy, with a high near 26. West wind 14 to 16 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of snow showers. Mostly cloudy, with a low around 15. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 35. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
A slight chance of snow showers after 2am. Mostly cloudy, with a low around 24. South wind around 5 mph. Chance of precipitation is 20%.
Thursday
A chance of showers after 2pm. Mostly cloudy, with a high near 45. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 31. Southwest wind around 6 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 49.
Friday Night
A chance of rain showers after 8pm, mixing with snow after 2am. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Saturday
A chance of rain and snow showers. Partly sunny, with a high near 47. Chance of precipitation is 30%.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Portville NY
 42°N 78.3°W (Elev. 1480 ft)
Last Update:
9:58 am EDT Mar 16, 2026
Forecast Valid:
10am 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