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Hazardous Weather Conditions

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

Byrnedale PA

Winter Weather Advisory February 23, 02:12am until February 23, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory February 23, 02:12am until February 23, 01:00pm

    NOW until 1:00pm Mon

    Winter Weather Advisory

  • Overnight

    Low: 26 °F

    Chance Snow

  • Monday

    Monday: A chance of snow, mainly between 1pm and 4pm. Cloudy, with a high near 33. Northwest wind 8 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 33 °F

    Chance Snow

  • Monday Night

    Monday Night: A slight chance of snow before 1am. Mostly cloudy, with a low around 12. Northwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 12 °F

    Slight Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 29. Wind chill values as low as zero. West wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 29 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Snow. Low around 22. Calm wind becoming southwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 22 °F

    Snow

  • Wednesday

    Wednesday: A chance of snow before 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    High: 39 °F

    Chance Snow

  • Wednesday Night

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

    Low: 19 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow. Partly sunny, with a high near 38. Chance of precipitation is 50%.

    High: 38 °F

    Chance Snow

Detailed Forecast

Overnight
A chance of snow. Cloudy, with a low around 26. Northwest wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.
Monday
A chance of snow, mainly between 1pm and 4pm. Cloudy, with a high near 33. Northwest wind 8 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Monday Night
A slight chance of snow before 1am. Mostly cloudy, with a low around 12. Northwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 29. Wind chill values as low as zero. West wind 6 to 9 mph, with gusts as high as 20 mph.
Tuesday Night
Snow. Low around 22. Calm wind becoming southwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday
A chance of snow before 1pm. Mostly cloudy, with a high near 39. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Wednesday Night
Mostly cloudy, with a low around 19.
Thursday
A chance of snow. Partly sunny, with a high near 38. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow showers before 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 38.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byrnedale PA
 41.32°N 78.48°W (Elev. 1506 ft)
Last Update:
1:36 am EST Feb 23, 2026
Forecast Valid:
2am EST Feb 23, 2026-6pm EST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation