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

Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

6 Miles SW Cross Fork PA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 41. West wind 3 to 5 mph.

    High: 41 °F

    Mostly Cloudy

  • Tonight

    Tonight: Snow likely, mainly after 3am. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday

    Sunday: Snow. High near 35. Calm wind becoming southeast around 5 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 35 °F

    Snow

  • Sunday Night

    Sunday Night: Snow. Low around 29. North wind 3 to 6 mph. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 29 °F

    Snow

  • Monday

    Monday: A chance of snow before 1pm. Mostly cloudy, with a high near 36. Northwest wind 8 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    High: 36 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.

    Low: 20 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Wednesday

    Wednesday: Snow showers likely before 1pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.

    High: 41 °F

    Snow Showers
    Likely then
    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 41. West wind 3 to 5 mph.
Tonight
Snow likely, mainly after 3am. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday
Snow. High near 35. Calm wind becoming southeast around 5 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Snow. Low around 29. North wind 3 to 6 mph. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Monday
A chance of snow before 1pm. Mostly cloudy, with a high near 36. Northwest wind 8 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 13.
Tuesday
Partly sunny, with a high near 28.
Tuesday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.
Wednesday
Snow showers likely before 1pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.
Wednesday Night
A chance of rain and snow showers before 1am, then a chance of rain showers. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
Thursday
A chance of rain and snow showers. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 25. Chance of precipitation is 50%.
Friday
Mostly sunny, with a high near 41.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Cross Fork PA
 41.42°N 77.9°W (Elev. 1407 ft)
Last Update:
1:46 pm EST Feb 21, 2026
Forecast Valid:
2pm EST Feb 21, 2026-6pm EST Feb 27, 2026
 
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