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.

Overcast

41°F

5°C

Humidity 76%
Wind Speed NW 7 mph
Barometer 30.20 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 9 Jan 10:35 pm EST
Extended Forecast for

4 Miles SSW Cross Fork PA

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 32. West wind 5 to 7 mph becoming calm after midnight.

    Low: 32 °F

    Cloudy then
    Patchy Fog

  • Saturday

    Saturday: Rain, mainly after noon. Patchy fog before 9am. High near 41. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 41 °F

    Patchy Fog
    then Rain

  • Saturday Night

    Saturday Night: Rain before 1am, then a slight chance of rain and snow showers between 1am and 4am, then a slight chance of snow showers after 4am. Low around 29. Southeast wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 29 °F

    Rain then
    Rain/Snow

  • Sunday

    Sunday: A chance of snow showers, mainly after 1pm. Partly sunny, with a high near 34. West wind 9 to 13 mph, with gusts as high as 37 mph. Chance of precipitation is 40%.

    High: 34 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24. West wind 10 to 13 mph, with gusts as high as 39 mph.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 32. West wind 5 to 7 mph becoming calm after midnight.
Saturday
Rain, mainly after noon. Patchy fog before 9am. High near 41. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain before 1am, then a slight chance of rain and snow showers between 1am and 4am, then a slight chance of snow showers after 4am. Low around 29. Southeast wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday
A chance of snow showers, mainly after 1pm. Partly sunny, with a high near 34. West wind 9 to 13 mph, with gusts as high as 37 mph. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 24. West wind 10 to 13 mph, with gusts as high as 39 mph.
Monday
Mostly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 41.
Tuesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 50%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 28.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
Partly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Cross Fork PA
 41.43°N 77.84°W (Elev. 1699 ft)
Last Update:
9:51 pm EST Jan 9, 2026
Forecast Valid:
10pm EST Jan 9, 2026-6pm EST Jan 16, 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