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

46°F

8°C

Humidity 71%
Wind Speed W 12 G 18 mph
Barometer 30.02 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 1 Nov 11:35 am EDT
Extended Forecast for

2 Miles ESE Byrnedale PA

  • Today

    Today: A slight chance of showers before noon. Mostly cloudy, with a high near 52. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 52 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 56 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers after 2pm. Mostly sunny, with a high near 57. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 30%.

    High: 57 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly before 2am. Partly cloudy, with a low around 37. Chance of precipitation is 30%.

    Low: 37 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 57. Chance of precipitation is 30%.

    High: 57 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A slight chance of showers before noon. Mostly cloudy, with a high near 52. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 34. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 35. Calm wind.
Monday
A chance of showers after 2pm. Mostly sunny, with a high near 57. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers, mainly before 2am. Partly cloudy, with a low around 37. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 57. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 37. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
A chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Byrnedale PA
 41.31°N 78.45°W (Elev. 1634 ft)
Last Update:
8:06 am EDT Nov 1, 2025
Forecast Valid:
11am EDT Nov 1, 2025-6pm EST Nov 7, 2025
 
Forecast Discussion
 
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Additional Resources

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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