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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

Saint Marys PA

  • This Afternoon

    This Afternoon: A slight chance of rain before 5pm, then a slight chance of rain and snow. Mostly cloudy, with a high near 39. Calm wind. Chance of precipitation is 20%.

    High: 39 °F

    Slight Chance
    Rain/Snow

  • Tonight

    Tonight: A slight chance of rain and snow before 8pm. Patchy fog before 10pm, then patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain/Snow and
    Patchy Fog
    then Patchy
    Fog

  • Washington's Birthday

    Washington's Birthday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 43. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 43 °F

    Patchy Fog
    then Partly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. Southwest wind 3 to 5 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 47. West wind around 5 mph becoming calm in the morning.

    High: 47 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Rain. High near 48. Chance of precipitation is 100%.

    High: 48 °F

    Rain Likely
    then Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.

    Low: 38 °F

    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A slight chance of rain before 5pm, then a slight chance of rain and snow. Mostly cloudy, with a high near 39. Calm wind. Chance of precipitation is 20%.
Tonight
A slight chance of rain and snow before 8pm. Patchy fog before 10pm, then patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 20%.
Washington's Birthday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 43. Calm wind becoming southwest around 6 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 34. Southwest wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 47. West wind around 5 mph becoming calm in the morning.
Tuesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. High near 48. Chance of precipitation is 100%.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 52.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 50%.
Friday
Rain likely. Mostly cloudy, with a high near 48. Chance of precipitation is 60%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Saturday
A chance of rain. Partly sunny, with a high near 39. Chance of precipitation is 30%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Sunday
A chance of rain and snow. Partly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys PA
 41.44°N 78.57°W (Elev. 1795 ft)
Last Update:
2:06 pm EST Feb 15, 2026
Forecast Valid:
4pm EST Feb 15, 2026-6pm EST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation