National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

30°F

-1°C

Humidity 64%
Wind Speed W 6 mph
Barometer 30.46 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 29 Nov 10:35 am EST
Extended Forecast for

2 Miles N Johnsonburg PA

  • Today

    Today: Cloudy, with a high near 33. West wind around 5 mph becoming calm in the afternoon.

    High: 33 °F

    Cloudy

  • Tonight

    Tonight: Snow showers likely after 10pm. Cloudy, with a low around 25. Light southeast wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 25 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Sunday

    Sunday: Snow showers before 10am, then rain and snow showers. High near 40. South wind 14 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Snow showers likely, possibly mixed with rain, becoming all snow after 7pm. Mostly cloudy, with a low around 20. West wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Rain/Snow
    Likely then
    Snow Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 32. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 32 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Tuesday

    Tuesday: Snow showers. High near 34. Chance of precipitation is 80%.

    High: 34 °F

    Snow Showers

  • Tuesday Night

    Tuesday Night: A chance of snow showers before 1am. Mostly cloudy, with a low around 17. Chance of precipitation is 40%.

    Low: 17 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

Detailed Forecast

Today
Cloudy, with a high near 33. West wind around 5 mph becoming calm in the afternoon.
Tonight
Snow showers likely after 10pm. Cloudy, with a low around 25. Light southeast wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow showers before 10am, then rain and snow showers. High near 40. South wind 14 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Sunday Night
Snow showers likely, possibly mixed with rain, becoming all snow after 7pm. Mostly cloudy, with a low around 20. West wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 32. Northwest wind around 6 mph becoming calm in the afternoon.
Monday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Tuesday
Snow showers. High near 34. Chance of precipitation is 80%.
Tuesday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 17. Chance of precipitation is 40%.
Wednesday
Mostly cloudy, with a high near 32.
Wednesday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 50%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 50%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 8. Chance of precipitation is 30%.
Friday
A chance of snow showers. Mostly cloudy, with a high near 28. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Johnsonburg PA
 41.51°N 78.68°W (Elev. 1499 ft)
Last Update:
9:51 am EST Nov 29, 2025
Forecast Valid:
10am EST Nov 29, 2025-6pm EST Dec 5, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation