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

48°F

9°C

Humidity 94%
Wind Speed S 6 mph
Barometer 29.90 in
Dewpoint 46°F (8°C)
Visibility 3.00 mi
Wind Chill45°F (7°C)
Last update 9 Jan 1:35 pm EST
Extended Forecast for

2 Miles NE Penfield PA

  • This Afternoon

    This Afternoon: Showers likely, mainly before 5pm. Mostly cloudy, with a high near 55. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Showers
    Likely

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 32. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 25 mph.

    Low: 32 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Rain, mainly after 1pm. Patchy fog before 8am. High near 43. Calm wind becoming east around 6 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Rain

  • Saturday Night

    Saturday Night: Rain before 1am, then a slight chance of rain and snow showers between 1am and 4am, then a slight chance of snow showers after 4am. Low around 27. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Rain then
    Rain/Snow

  • Sunday

    Sunday: Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 31. West wind 10 to 14 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Sunday Night

    Sunday Night: A slight chance of snow showers before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Snow Showers

  • Monday

    Monday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Showers likely, mainly before 5pm. Mostly cloudy, with a high near 55. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 32. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 25 mph.
Saturday
Rain, mainly after 1pm. Patchy fog before 8am. High near 43. Calm wind becoming east around 6 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain before 1am, then a slight chance of rain and snow showers between 1am and 4am, then a slight chance of snow showers after 4am. Low around 27. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday
Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 31. West wind 10 to 14 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
A slight chance of snow showers before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Wednesday
Rain and snow likely. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Thursday
A chance of snow. Partly sunny, with a high near 26. Chance of precipitation is 30%.
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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:
1:06 pm EST Jan 9, 2026
Forecast Valid:
1pm EST Jan 9, 2026-6pm EST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation