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

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Fair

18°F

-8°C

Humidity 68%
Wind Speed Calm
Barometer 30.22 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 8 Dec 5:55 am EST
Extended Forecast for

5 Miles SSW Cross Fork PA

  • Today

    Today: Partly sunny, with a high near 24. Northeast wind 3 to 6 mph.

    High: 24 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 7. Calm wind.

    Low: 7 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: A chance of snow after 1pm. Mostly cloudy, with a high near 32. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    High: 32 °F

    Partly Sunny
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 1am. Cloudy, with a low around 26. South wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 26 °F

    Slight Chance
    Snow then
    Snow Likely

  • Wednesday

    Wednesday: Rain and snow. High near 39. South wind 8 to 10 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    High: 39 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow likely, possibly mixed with rain, becoming all snow after 10pm. Mostly cloudy, with a low around 23. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Thursday

    Thursday: A chance of snow. Partly sunny, with a high near 31. Chance of precipitation is 40%.

    High: 31 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 20. Chance of precipitation is 30%.

    Low: 20 °F

    Chance Snow

  • Friday

    Friday: A chance of snow after 1pm. Mostly cloudy, with a high near 30. Chance of precipitation is 40%.

    High: 30 °F

    Partly Sunny
    then Chance
    Snow

Detailed Forecast

Today
Partly sunny, with a high near 24. Northeast wind 3 to 6 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 7. Calm wind.
Tuesday
A chance of snow after 1pm. Mostly cloudy, with a high near 32. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Tuesday Night
Snow likely, mainly after 1am. Cloudy, with a low around 26. South wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
Rain and snow. High near 39. South wind 8 to 10 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Wednesday Night
Snow likely, possibly mixed with rain, becoming all snow after 10pm. Mostly cloudy, with a low around 23. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow. Partly sunny, with a high near 31. Chance of precipitation is 40%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 20. Chance of precipitation is 30%.
Friday
A chance of snow after 1pm. Mostly cloudy, with a high near 30. Chance of precipitation is 40%.
Friday Night
Snow likely. Cloudy, with a low around 16. Chance of precipitation is 70%.
Saturday
Snow likely. Mostly cloudy, with a high near 23. Chance of precipitation is 60%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 14. Chance of precipitation is 40%.
Sunday
A chance of snow. Mostly cloudy, with a high near 25. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Cross Fork PA
 41.41°N 77.87°W (Elev. 1736 ft)
Last Update:
2:46 am EST Dec 8, 2025
Forecast Valid:
6am EST Dec 8, 2025-6pm EST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation