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

72°F

22°C

Humidity 61%
Wind Speed Calm
Barometer 30.23 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 15 Aug 10:35 pm EDT
Extended Forecast for

Force PA

  • Tonight

    Tonight: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.

    High: 90 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 88. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 60. Light northeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers after 2am. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 63. Calm wind.
Saturday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 64. Calm wind.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 88. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 60. Light northeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 86.
Monday Night
A chance of showers after 2am. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.
Wednesday Night
Mostly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Force PA
 41.25°N 78.52°W (Elev. 1302 ft)
Last Update:
6:08 pm EDT Aug 15, 2025
Forecast Valid:
10pm EDT Aug 15, 2025-6pm EDT Aug 22, 2025
 
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