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 45%
Wind Speed Calm
Barometer 30.25 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Last update 8 Dec 5:35 pm EST
Extended Forecast for

8 Miles NW Cross Fork PA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 5. Calm wind.

    Low: 5 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: A slight chance of snow showers after 3pm. Increasing clouds, with a high near 30. Wind chill values as low as zero. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    High: 30 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers between 7pm and 1am, then snow likely after 1am. Cloudy, with a low around 24. Southwest wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Slight Chance
    Snow Showers
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow before 10am, then snow, possibly mixed with rain. High near 38. South wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 38 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow, possibly mixed with rain, becoming all snow after 10pm. Low around 22. West wind around 9 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Rain/Snow
    then Snow

  • Thursday

    Thursday: A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 40%.

    High: 28 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 17. Chance of precipitation is 40%.

    Low: 17 °F

    Chance Snow
    Showers

  • Friday

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

    High: 28 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Snow showers likely. Mostly cloudy, with a low around 16. Chance of precipitation is 70%.

    Low: 16 °F

    Snow Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 5. Calm wind.
Tuesday
A slight chance of snow showers after 3pm. Increasing clouds, with a high near 30. Wind chill values as low as zero. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of snow showers between 7pm and 1am, then snow likely after 1am. Cloudy, with a low around 24. Southwest wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Snow before 10am, then snow, possibly mixed with rain. High near 38. South wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow, possibly mixed with rain, becoming all snow after 10pm. Low around 22. West wind around 9 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 40%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 17. Chance of precipitation is 40%.
Friday
A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 50%.
Friday Night
Snow showers likely. Mostly cloudy, with a low around 16. Chance of precipitation is 70%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 25. Chance of precipitation is 50%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 12. Chance of precipitation is 40%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 23. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 7.
Monday
Mostly cloudy, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Cross Fork PA
 41.55°N 77.94°W (Elev. 1726 ft)
Last Update:
6:49 pm EST Dec 8, 2025
Forecast Valid:
6pm EST Dec 8, 2025-6pm EST Dec 15, 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