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

Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

30°F

-1°C

Humidity 75%
Wind Speed W 17 G 22 mph
Barometer 30.00 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 28 Nov 11:35 am EST
Extended Forecast for

Cross Fork PA

Lake Effect Snow Warning November 28, 11:52am until November 29, 01:00am
Click here for hazard details and duration
Lake Effect Snow Warning
  •  
    Lake Effect Snow Warning November 28, 11:52am until November 29, 01:00am

    NOW until 1:00am Sat

    Lake Effect Snow Warning

  • Today

    High: 35 °F

    Snow Showers
    Likely

  • Tonight

    Tonight: A chance of snow showers, mainly before 1am. Mostly cloudy, with a low around 23. West wind 6 to 8 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    Low: 23 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 35. West wind around 5 mph becoming calm in the afternoon.

    High: 35 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow showers, mainly after 1am. Low around 26. Calm wind becoming south 5 to 9 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 26 °F

    Chance Snow
    Showers then
    Snow Showers

  • Sunday

    Sunday: Snow showers before 10am, then snow showers, possibly mixed with rain. High near 39. South wind 8 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 39 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain likely, possibly mixed with snow showers before 7pm, then a chance of snow showers. Cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Rain/Snow
    Likely then
    Chance Snow
    Showers

  • Monday

    Monday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of snow after 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.

    Low: 22 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Today
Snow showers likely, mainly before noon. Cloudy, with a high near 35. West wind around 11 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.
Tonight
A chance of snow showers, mainly before 1am. Mostly cloudy, with a low around 23. West wind 6 to 8 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 35. West wind around 5 mph becoming calm in the afternoon.
Saturday Night
Snow showers, mainly after 1am. Low around 26. Calm wind becoming south 5 to 9 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Sunday
Snow showers before 10am, then snow showers, possibly mixed with rain. High near 39. South wind 8 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Sunday Night
Rain likely, possibly mixed with snow showers before 7pm, then a chance of snow showers. Cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Mostly cloudy, with a high near 32.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Tuesday
A chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 50%.
Tuesday Night
A chance of snow before 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Mostly cloudy, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cross Fork PA
 41.47°N 77.8°W (Elev. 1627 ft)
Last Update:
9:36 am EST Nov 28, 2025
Forecast Valid:
11am EST Nov 28, 2025-6pm EST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation