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Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

45°F

7°C

Humidity 93%
Wind Speed W 16 G 22 mph
Barometer 29.56 in
Dewpoint 43°F (6°C)
Visibility 7.00 mi
Wind Chill38°F (3°C)
Last update 7 Jan 1:15 am EST
Extended Forecast for

3 Miles ENE Penfield PA

  • Overnight

    Overnight: A chance of showers. Patchy fog. Otherwise, cloudy, with a low around 35. West wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers, mainly before 8am. Patchy fog before 8am. Otherwise, cloudy, with a high near 41. West wind 7 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Chance
    Showers and
    Patchy Fog
    then Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32. Light west wind.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 49. Light and variable wind.

    High: 49 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 3am. Mostly cloudy, with a low around 38. Southeast wind 3 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers, mainly after 7am. High near 55. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.

    Low: 44 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers. High near 54. Chance of precipitation is 90%.

    High: 54 °F

    Showers

  • Saturday Night

    Saturday Night: Rain showers likely before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

    Low: 31 °F

    Showers
    Likely then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
A chance of showers. Patchy fog. Otherwise, cloudy, with a low around 35. West wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, mainly before 8am. Patchy fog before 8am. Otherwise, cloudy, with a high near 41. West wind 7 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 32. Light west wind.
Thursday
Partly sunny, with a high near 49. Light and variable wind.
Thursday Night
A chance of showers, mainly after 3am. Mostly cloudy, with a low around 38. Southeast wind 3 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers, mainly after 7am. High near 55. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Saturday
Showers. High near 54. Chance of precipitation is 90%.
Saturday Night
Rain showers likely before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Sunday
A chance of snow showers. Partly sunny, with a high near 37. Chance of precipitation is 50%.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Penfield PA
 41.23°N 78.55°W (Elev. 1299 ft)
Last Update:
1:05 am EST Jan 7, 2026
Forecast Valid:
1am EST Jan 7, 2026-6pm EST Jan 13, 2026
 
Forecast Discussion
 
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Additional Resources

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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