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

32°F

0°C

Humidity 80%
Wind Speed SW 8 mph
Barometer 29.98 in
Dewpoint 27°F (-3°C)
Visibility 5.00 mi
Wind Chill25°F (-4°C)
Last update 7 Dec 1:35 pm EST
Extended Forecast for

5 Miles NE Saint Marys PA

  • This Afternoon

    This Afternoon: A chance of snow showers, mainly between 3pm and 4pm. Mostly cloudy, with a high near 33. West wind around 8 mph. Chance of precipitation is 30%.

    High: 33 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 9. Northwest wind around 6 mph becoming light and variable after midnight.

    Low: 9 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 24. Northeast wind around 6 mph becoming calm in the afternoon.

    High: 24 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 6. Calm wind.

    Low: 6 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of snow after 1pm. Mostly cloudy, with a high near 33. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 40%.

    High: 33 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 1am. Cloudy, with a low around 26. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 26 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: Rain and snow. High near 39. Chance of precipitation is 100%.

    High: 39 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow before 1am, then snow showers likely after 1am. Low around 23. Chance of precipitation is 90%.

    Low: 23 °F

    Snow

  • Thursday

    Thursday: A chance of snow showers. Mostly cloudy, with a high near 30. Chance of precipitation is 50%.

    High: 30 °F

    Chance Snow
    Showers

Detailed Forecast

This Afternoon
A chance of snow showers, mainly between 3pm and 4pm. Mostly cloudy, with a high near 33. West wind around 8 mph. Chance of precipitation is 30%.
Tonight
Mostly cloudy, with a low around 9. Northwest wind around 6 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 24. Northeast wind around 6 mph becoming calm in the afternoon.
Monday Night
Mostly clear, with a low around 6. Calm wind.
Tuesday
A chance of snow after 1pm. Mostly cloudy, with a high near 33. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Tuesday Night
Snow likely, mainly after 1am. Cloudy, with a low around 26. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Wednesday
Rain and snow. High near 39. Chance of precipitation is 100%.
Wednesday Night
Snow before 1am, then snow showers likely after 1am. Low around 23. Chance of precipitation is 90%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 30. Chance of precipitation is 50%.
Thursday Night
Snow showers likely. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.
Friday
Snow showers likely. Mostly cloudy, with a high near 28. Chance of precipitation is 60%.
Friday Night
Snow showers likely. Mostly cloudy, with a low around 12. Chance of precipitation is 70%.
Saturday
Snow showers likely. Mostly cloudy, with a high near 23. Chance of precipitation is 70%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Saint Marys PA
 41.47°N 78.48°W (Elev. 1621 ft)
Last Update:
1:28 pm EST Dec 7, 2025
Forecast Valid:
1pm EST Dec 7, 2025-6pm EST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation