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

3 Miles WNW Weedville PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 40. West wind around 14 mph, with gusts as high as 26 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: A chance of snow showers, mainly after 2am. Increasing clouds, with a low around 29. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 30%.

    Low: 29 °F

    Partly Cloudy
    then Chance
    Snow Showers

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 52. South wind 14 to 17 mph, with gusts as high as 34 mph.

    High: 52 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 44. Southeast wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers, mainly after 8am. High near 59. South wind 14 to 17 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.

    High: 59 °F

    Showers

  • Monday Night

    Monday Night: Snow showers likely, mainly before 2am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 18 °F

    Snow Showers
    Likely

  • Tuesday

    Tuesday: A chance of snow showers before 8am. Mostly cloudy, with a high near 25. Breezy. Chance of precipitation is 30%.

    High: 25 °F

    Chance Snow
    Showers and
    Breezy then
    Mostly Cloudy

  • 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

Detailed Forecast

This Afternoon
Sunny, with a high near 40. West wind around 14 mph, with gusts as high as 26 mph.
Tonight
A chance of snow showers, mainly after 2am. Increasing clouds, with a low around 29. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 30%.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 52. South wind 14 to 17 mph, with gusts as high as 34 mph.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 44. Southeast wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers, mainly after 8am. High near 59. South wind 14 to 17 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.
Monday Night
Snow showers likely, mainly before 2am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Tuesday
A chance of snow showers before 8am. Mostly cloudy, with a high near 25. Breezy. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
Mostly cloudy, with a high near 34.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 45.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Weedville PA
 41.28°N 78.57°W (Elev. 1821 ft)
Last Update:
2:28 pm EDT Mar 14, 2026
Forecast Valid:
2pm EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation