Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Light Snow

36°F

2°C

Humidity 65%
Wind Speed SW 9 G 24 mph
Barometer 29.47 in
Dewpoint 25°F (-4°C)
Visibility 5.00 mi
Wind Chill29°F (-2°C)
Last update 13 Mar 5:35 pm EDT
Extended Forecast for

Great Valley NY

Winter Storm Warning until March 14, 11:00am
High Wind Warning March 13, 05:47pm until March 14, 11:00am
Click here for hazard details and duration
Winter Storm Warning
High Wind Warning
  •  
    Winter Storm Warning until March 14, 11:00am
    High Wind Warning March 13, 05:47pm until March 14, 11:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 38 °F

    Rain/Snow

  • Tonight

    Tonight: Rain and snow showers, becoming all snow after 7pm.  Low around 24. Breezy, with a west wind 17 to 21 mph, with gusts as high as 43 mph.  Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 24 °F

    Breezy.
    Rain/Snow
    then Snow
    Showers
    Likely

  • Saturday

    Saturday: A chance of snow showers, mainly before 9am.  Cloudy, then gradually becoming mostly sunny, with a high near 34. Breezy, with a west wind 15 to 20 mph, with gusts as high as 39 mph.  Chance of precipitation is 30%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Chance Snow
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A chance of snow after 2am.  Increasing clouds, with a low around 22. Calm wind.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Partly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A chance of snow, possibly mixing with rain after 11am, then gradually ending.  Mostly cloudy, with a high near 49. South wind 6 to 13 mph, with gusts as high as 28 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A slight chance of showers after 2am.  Mostly cloudy, with a low around 42. South wind around 17 mph, with gusts as high as 38 mph.  Chance of precipitation is 20%.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: Rain showers likely between 8am and 2pm, then rain and snow showers.  High near 60. South wind around 15 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%.

    High: 60 °F

    Showers
    Likely then
    Rain/Snow

  • Monday Night

    Monday Night: Rain and snow showers, becoming all snow after 8pm.  Low around 16. West wind 11 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%.

    Low: 16 °F

    Rain/Snow
    then Snow
    Showers
    Likely

Detailed Forecast

This Afternoon
Rain and snow showers. High near 38. South wind around 16 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Rain and snow showers, becoming all snow after 7pm. Low around 24. Breezy, with a west wind 17 to 21 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Saturday
A chance of snow showers, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 34. Breezy, with a west wind 15 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.
Saturday Night
A chance of snow after 2am. Increasing clouds, with a low around 22. Calm wind. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday
A chance of snow, possibly mixing with rain after 11am, then gradually ending. Mostly cloudy, with a high near 49. South wind 6 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 42. South wind around 17 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Monday
Rain showers likely between 8am and 2pm, then rain and snow showers. High near 60. South wind around 15 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.
Monday Night
Rain and snow showers, becoming all snow after 8pm. Low around 16. West wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Tuesday
A chance of snow showers. Mostly cloudy, with a high near 22. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 13.
Wednesday
Mostly cloudy, with a high near 33.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Thursday
A chance of snow showers. Partly sunny, with a high near 43. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly cloudy, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
Great Valley NY
 42.21°N 78.6°W (Elev. 1558 ft)
3:58 pm EDT Mar 13, 2026
5pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
 
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