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

6 Miles WSW Cross Fork PA

  • Today

    Today: Mostly sunny, with a high near 69. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers, mainly between 2am and 5am. Mostly cloudy, with a low around 56. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. Some of the storms could be severe. High near 70. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 70 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then a chance of rain and snow showers. Low around 33. West wind around 9 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 33 °F

    Showers then
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow showers before 8am. Mostly cloudy, with a high near 39. Northwest wind around 10 mph, with gusts as high as 36 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: A chance of snow showers before 2pm, then a chance of rain showers. Mostly cloudy, with a high near 47. Chance of precipitation is 50%.

    High: 47 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain showers, mixing with snow after 8pm, then gradually ending. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.

    Low: 27 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 69. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tonight
A chance of showers, mainly between 2am and 5am. Mostly cloudy, with a low around 56. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. Some of the storms could be severe. High near 70. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Rain showers before 5am, then a chance of rain and snow showers. Low around 33. West wind around 9 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
A chance of rain and snow showers before 8am. Mostly cloudy, with a high near 39. Northwest wind around 10 mph, with gusts as high as 36 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly clear, with a low around 26.
Friday
A chance of snow showers before 2pm, then a chance of rain showers. Mostly cloudy, with a high near 47. Chance of precipitation is 50%.
Friday Night
A chance of rain showers, mixing with snow after 8pm, then gradually ending. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Sunday
A chance of rain and snow showers. Mostly cloudy, with a high near 56. Chance of precipitation is 30%.
Sunday Night
Rain and snow showers. Low around 35. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 43. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Cross Fork PA
 41.44°N 77.93°W (Elev. 1411 ft)
Last Update:
8:05 am EDT Mar 10, 2026
Forecast Valid:
8am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation