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

3 Miles ESE Driftwood PA

  • Today

    Today: A slight chance of showers after 3pm. Partly sunny, with a high near 69. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 69 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after 8am. Some of the storms could be severe. High near 71. South wind 5 to 9 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: 71 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Rain showers before 5am, then a chance of rain and snow showers. Low around 34. West wind around 9 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 34 °F

    Showers then
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow showers before 8am. Mostly cloudy, with a high near 40. Northwest wind around 11 mph, with gusts as high as 33 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 40 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: A chance of snow showers before 2pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 48. Chance of precipitation is 50%.

    High: 48 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers after 3pm. Partly sunny, with a high near 69. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after 8am. Some of the storms could be severe. High near 71. South wind 5 to 9 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. Low around 34. West wind around 9 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
A chance of rain and snow showers before 8am. Mostly cloudy, with a high near 40. Northwest wind around 11 mph, with gusts as high as 33 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly clear, with a low around 27.
Friday
A chance of snow showers before 2pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 48. Chance of precipitation is 50%.
Friday Night
A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Sunday
A chance of rain and snow showers. Mostly cloudy, with a high near 58. Chance of precipitation is 30%.
Sunday Night
Rain and snow showers. Low around 35. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 43. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Driftwood PA
 41.32°N 78.06°W (Elev. 1427 ft)
Last Update:
8:05 am EDT Mar 10, 2026
Forecast Valid:
10am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation