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.

N/A

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

5 Miles S Cross Fork PA

  • Tonight

    Tonight: A chance of snow showers, mainly between 2am and 5am. Increasing clouds, with a low around 28. Northwest wind 5 to 9 mph becoming light and variable. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 28 °F

    Partly Cloudy
    then Chance
    Snow Showers

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 49. South wind 10 to 14 mph, with gusts as high as 33 mph.

    High: 49 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Increasing clouds, with a low around 43. Southeast wind 14 to 16 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 60. South wind around 13 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 60 °F

    Showers

  • Monday Night

    Monday Night: Snow showers likely, possibly mixed with rain, becoming all snow after 11pm. Some thunder is also possible. Mostly cloudy, with a low around 18. West wind around 14 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 18 °F

    Rain/Snow
    Likely then
    Snow Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of snow showers. Mostly cloudy, with a high near 25. Chance of precipitation is 20%.

    High: 25 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of snow showers, mainly between 2am and 5am. Increasing clouds, with a low around 28. Northwest wind 5 to 9 mph becoming light and variable. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 49. South wind 10 to 14 mph, with gusts as high as 33 mph.
Sunday Night
Showers likely, mainly after 2am. Increasing clouds, with a low around 43. Southeast wind 14 to 16 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. High near 60. South wind around 13 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Snow showers likely, possibly mixed with rain, becoming all snow after 11pm. Some thunder is also possible. Mostly cloudy, with a low around 18. West wind around 14 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Tuesday
A slight chance of snow showers. Mostly cloudy, with a high near 25. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
Mostly cloudy, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Mostly cloudy, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 49.
Friday Night
A chance of showers. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Cross Fork PA
 41.41°N 77.81°W (Elev. 2096 ft)
Last Update:
2:28 pm EDT Mar 14, 2026
Forecast Valid:
6pm EDT Mar 14, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation