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

36°F

2°C

Humidity 93%
Wind Speed SW 14 G 24 mph
Barometer 29.30 in
Dewpoint 34°F (1°C)
Visibility 1.50 mi
Wind Chill27°F (-3°C)
Last update 10 Dec 2:15 pm EST
Extended Forecast for

8 Miles NW Cross Fork PA

Winter Weather Advisory December 10, 02:30pm until December 12, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 10, 02:30pm until December 12, 04:00am

    NOW until 4:00am Fri

    Winter Weather Advisory

  • This Afternoon

    High: 34 °F

    Rain/Snow
    Likely

  • Tonight

    Tonight: Rain and snow likely before 1am, then a slight chance of snow after 5am. Mostly cloudy, with a low around 18. Northwest wind 9 to 11 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 18 °F

    Rain/Snow
    Likely then
    Slight Chance
    Snow

  • Thursday

    Thursday: Snow showers likely, mainly after 1pm. The snow could be heavy at times. Mostly cloudy, with a high near 26. West wind 10 to 13 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 26 °F

    Heavy Snow

  • Thursday Night

    Thursday Night: A chance of snow showers before 1am, then a slight chance of snow after 1am. Mostly cloudy, with a low around 19. West wind 6 to 10 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 29. West wind 3 to 6 mph.

    High: 29 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of snow after 1am. Mostly cloudy, with a low around 14. Chance of precipitation is 40%.

    Low: 14 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A chance of snow. Mostly cloudy, with a high near 28. Chance of precipitation is 50%.

    High: 28 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 50%.

    Low: 12 °F

    Chance Snow

Detailed Forecast

This Afternoon
Snow likely before 4pm, then a chance of rain and snow between 4pm and 5pm, then a chance of snow after 5pm. Cloudy, with a high near 34. Southwest wind around 9 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Rain and snow likely before 1am, then a slight chance of snow after 5am. Mostly cloudy, with a low around 18. Northwest wind 9 to 11 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday
Snow showers likely, mainly after 1pm. The snow could be heavy at times. Mostly cloudy, with a high near 26. West wind 10 to 13 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A chance of snow showers before 1am, then a slight chance of snow after 1am. Mostly cloudy, with a low around 19. West wind 6 to 10 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday
Mostly cloudy, with a high near 29. West wind 3 to 6 mph.
Friday Night
A chance of snow after 1am. Mostly cloudy, with a low around 14. Chance of precipitation is 40%.
Saturday
A chance of snow. Mostly cloudy, with a high near 28. Chance of precipitation is 50%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 50%.
Sunday
A chance of snow. Mostly cloudy, with a high near 21. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
Mostly cloudy, with a high near 23.
Monday Night
A chance of snow. Mostly cloudy, with a low around 13. Chance of precipitation is 30%.
Tuesday
Mostly cloudy, with a high near 29.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Cross Fork PA
 41.55°N 77.94°W (Elev. 1726 ft)
Last Update:
2:21 pm EST Dec 10, 2025
Forecast Valid:
2pm EST Dec 10, 2025-6pm EST Dec 16, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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