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

4 Miles SSW Cross Fork PA

  • Overnight

    Overnight: A chance of showers between 4am and 5am. Mostly cloudy, with a low around 55. Light south wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Some of the storms could be severe. High near 69. South wind 6 to 10 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 69 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 31. West wind around 10 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 31 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 38. Northwest wind 11 to 13 mph, with gusts as high as 36 mph.

    High: 38 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. West wind 3 to 7 mph. Winds could gust as high as 20 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A chance of snow before 11am, then a chance of rain and snow between 11am and 5pm, then a chance of rain after 5pm. Mostly cloudy, with a high near 46. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain before 11pm, then a chance of snow between 11pm and 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.

    Low: 27 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.

    Low: 28 °F

    Chance Snow
    Showers

Detailed Forecast

Overnight
A chance of showers between 4am and 5am. Mostly cloudy, with a low around 55. Light south wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers and possibly a thunderstorm. Some of the storms could be severe. High near 69. South wind 6 to 10 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 31. West wind around 10 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Partly sunny, with a high near 38. Northwest wind 11 to 13 mph, with gusts as high as 36 mph.
Thursday Night
Mostly clear, with a low around 28. West wind 3 to 7 mph. Winds could gust as high as 20 mph.
Friday
A chance of snow before 11am, then a chance of rain and snow between 11am and 5pm, then a chance of rain after 5pm. Mostly cloudy, with a high near 46. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday Night
A chance of rain before 11pm, then a chance of snow between 11pm and 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Sunday
A chance of snow showers before 2pm, then a chance of rain showers. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Sunday Night
Showers. Low around 36. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 48. Chance of precipitation is 80%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Cross Fork PA
 41.43°N 77.84°W (Elev. 1699 ft)
Last Update:
2:26 am EDT Mar 11, 2026
Forecast Valid:
3am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation