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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles NE Penfield PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. Southwest wind around 6 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. Some of the storms could be severe. High near 70. Southwest wind 6 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 70 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Rain showers before 2am, then rain and snow showers likely. Some thunder is also possible. Low around 30. West wind 13 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Severe
    Thunderstorms
    then
    Rain/Snow

  • Thursday

    Thursday: Snow showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 39. Northwest wind around 15 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Showers
    Likely then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27. West wind 3 to 6 mph.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Rain likely, possibly mixed with snow showers, mainly after 2pm. Mostly cloudy, with a high near 46. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain showers likely, possibly mixing with snow after 8pm, then gradually ending. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.

    Low: 27 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow showers. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.

    Low: 30 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. Southwest wind around 6 mph becoming calm in the evening.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. Some of the storms could be severe. High near 70. Southwest wind 6 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
Rain showers before 2am, then rain and snow showers likely. Some thunder is also possible. Low around 30. West wind 13 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
Snow showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 39. Northwest wind around 15 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly clear, with a low around 27. West wind 3 to 6 mph.
Friday
Rain likely, possibly mixed with snow showers, mainly after 2pm. Mostly cloudy, with a high near 46. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
Rain showers likely, possibly mixing with snow after 8pm, then gradually ending. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 43.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Sunday
A chance of rain and snow showers before 2pm, then a chance of rain showers. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.
Sunday Night
Showers. Low around 32. Chance of precipitation is 90%.
Monday
Rain and snow showers. High near 43. Chance of precipitation is 80%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 16. Chance of precipitation is 30%.
Tuesday
Mostly cloudy, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Penfield PA
 41.24°N 78.58°W (Elev. 1598 ft)
Last Update:
2:36 pm EDT Mar 10, 2026
Forecast Valid:
4pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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