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 WNW Emporium PA

  • Tonight

    Tonight: Mostly clear, with a low around 45. Southwest wind around 6 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 67. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 67 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 7pm, then a chance of showers after 2am. Mostly cloudy, with a low around 56. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms before 11am, then showers between 11am and 5pm, then showers and possibly a thunderstorm after 5pm. High near 69. South wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 69 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 30. Southwest wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Showers then
    Rain/Snow

  • Thursday

    Thursday: A chance of snow showers, mainly before 8am. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.

    High: 39 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: A chance of snow showers before 2pm, then rain and snow showers likely. Mostly cloudy, with a high near 43. Chance of precipitation is 70%.

    High: 43 °F

    Chance Snow
    Showers then
    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain and snow showers likely, mainly before 8pm. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.

    Low: 26 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 45. Southwest wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 67. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A slight chance of showers before 7pm, then a chance of showers after 2am. Mostly cloudy, with a low around 56. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers and thunderstorms before 11am, then showers between 11am and 5pm, then showers and possibly a thunderstorm after 5pm. High near 69. South wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 30. Southwest wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow showers, mainly before 8am. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 24.
Friday
A chance of snow showers before 2pm, then rain and snow showers likely. Mostly cloudy, with a high near 43. Chance of precipitation is 70%.
Friday Night
Rain and snow showers likely, mainly before 8pm. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.
Sunday
A chance of rain and snow showers. Mostly cloudy, with a high near 54. Chance of precipitation is 50%.
Sunday Night
Rain and snow showers. Low around 28. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 37. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Emporium PA
 41.54°N 78.26°W (Elev. 1398 ft)
Last Update:
2:26 pm EDT Mar 9, 2026
Forecast Valid:
3pm EDT Mar 9, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation