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Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

41°F

5°C

Humidity 100%
Wind Speed S 3 mph
Barometer 29.62 in
Dewpoint 41°F (5°C)
Visibility 3.00 mi
Last update 6 Jan 5:15 pm EST
Extended Forecast for

3 Miles ENE Penfield PA

  • This Afternoon

    This Afternoon: Light rain likely. Cloudy, with a high near 44. South wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Light Rain
    Likely

  • Tonight

    Tonight: Light rain, mainly before 4am. Low around 35. South wind 5 to 11 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °F

    Light Rain

  • Wednesday

    Wednesday: A chance of rain and snow before 7am, then a slight chance of rain between 7am and 10am. Cloudy, with a high near 41. West wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Chance
    Rain/Snow
    then Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. Light west wind.

    Low: 31 °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: Rain likely after 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Mostly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Rain. High near 56. Chance of precipitation is 80%.

    High: 56 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

  • Saturday

    Saturday: Rain. High near 53. Chance of precipitation is 80%.

    High: 53 °F

    Rain

Detailed Forecast

This Afternoon
Light rain likely. Cloudy, with a high near 44. South wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Light rain, mainly before 4am. Low around 35. South wind 5 to 11 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of rain and snow before 7am, then a slight chance of rain between 7am and 10am. Cloudy, with a high near 41. West wind 6 to 10 mph, with gusts as high as 24 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 31. Light west wind.
Thursday
Partly sunny, with a high near 49. Light and variable wind.
Thursday Night
Rain likely after 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain. High near 56. Chance of precipitation is 80%.
Friday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Saturday
Rain. High near 53. Chance of precipitation is 80%.
Saturday Night
A chance of rain showers before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 38. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 39.
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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:
1:56 pm EST Jan 6, 2026
Forecast Valid:
5pm EST Jan 6, 2026-6pm EST Jan 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation