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

61°F

16°C

Humidity 55%
Wind Speed S 6 mph
Barometer 30.12 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 11 Oct 3:15 pm EDT
Extended Forecast for

Byrnedale PA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 65. Southeast wind around 6 mph.

    High: 65 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers likely, mainly after 3am. Mostly cloudy, with a low around 47. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers likely before 10am, then a chance of showers after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 67. East wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 2am. Partly cloudy, with a low around 46. Northeast wind around 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance
    Showers

  • Columbus Day

    Columbus Day: A chance of showers, mainly before 2pm. Partly sunny, with a high near 62. Northeast wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 65. Southeast wind around 6 mph.
Tonight
Showers likely, mainly after 3am. Mostly cloudy, with a low around 47. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers likely before 10am, then a chance of showers after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 67. East wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of showers, mainly after 2am. Partly cloudy, with a low around 46. Northeast wind around 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Columbus Day
A chance of showers, mainly before 2pm. Partly sunny, with a high near 62. Northeast wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byrnedale PA
 41.32°N 78.48°W (Elev. 1506 ft)
Last Update:
2:05 pm EDT Oct 11, 2025
Forecast Valid:
3pm EDT Oct 11, 2025-6pm EDT Oct 18, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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