Winter Storm in the Central Appalachians through the Northeast; Heavy Snow in the Great Basin and Rockies

A winter storm will impact the central Appalachians to the Northeast through the night. Accumulating snow is expected for interior New England and the northern Mid-Atlantic. Scattered showers and occasional thunderstorms will persist across Florida and the Southeast coast. Locally heavy mountain snow is expected in the Great Basin and Rockies over the next couple of days. Read More >

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

32°F

0°C

Humidity 93%
Wind Speed Calm
Barometer 29.77 in
Dewpoint 30°F (-1°C)
Visibility 7.00 mi
Last update 2 Dec 1:35 pm EST
Extended Forecast for

Byrnedale PA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 34. Calm wind becoming northwest around 6 mph.

    High: 34 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Northwest wind around 6 mph becoming calm  after midnight.

    Low: 21 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 34. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 34 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow after 1am.  Mostly cloudy, with a low around 23. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday

    Thursday: A chance of snow before 1pm.  Partly sunny, with a high near 30. West wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 40%.

    High: 30 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow before 1pm.  Mostly cloudy, with a high near 34. Chance of precipitation is 30%.

    High: 34 °F

    Chance Snow

Detailed Forecast

This Afternoon
Cloudy, with a high near 34. Calm wind becoming northwest around 6 mph.
Tonight
Mostly cloudy, with a low around 21. Northwest wind around 6 mph becoming calm after midnight.
Wednesday
Partly sunny, with a high near 34. Calm wind becoming southwest 5 to 8 mph in the morning.
Wednesday Night
A chance of snow after 1am. Mostly cloudy, with a low around 23. Southwest wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow before 1pm. Partly sunny, with a high near 30. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 8.
Friday
Mostly sunny, with a high near 30.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
A chance of snow before 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.
Sunday
A chance of snow. Mostly cloudy, with a high near 32. Chance of precipitation is 30%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 15. Chance of precipitation is 40%.
Monday
A chance of snow. Partly sunny, with a high near 28. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Byrnedale PA
 41.32°N 78.48°W (Elev. 1506 ft)
1:41 pm EST Dec 2, 2025
1pm EST Dec 2, 2025-6pm EST Dec 8, 2025
 
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