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

Johnsonburg PA

  • Tonight

    Tonight: A slight chance of rain before 11pm, then drizzle, mainly after 3am. Patchy fog after 10pm. Otherwise, cloudy, with a low around 42. Calm wind. Chance of precipitation is 20%.

    Low: 42 °F

    Drizzle and
    Patchy Fog

  • Thursday

    Thursday: Rain. Patchy fog before 1pm. High near 54. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 1am, then rain likely. Low around 47. Southeast wind 3 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Rain

  • Friday

    Friday: A slight chance of showers before 1pm. Mostly cloudy, with a high near 61. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 61 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly after 1am. Mostly cloudy, with a low around 51. South wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 69. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 69 °F

    Showers
    Likely then
    Showers

  • Saturday Night

    Saturday Night: Showers likely before 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of rain before 11pm, then drizzle, mainly after 3am. Patchy fog after 10pm. Otherwise, cloudy, with a low around 42. Calm wind. Chance of precipitation is 20%.
Thursday
Rain. Patchy fog before 1pm. High near 54. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Rain and possibly a thunderstorm before 1am, then rain likely. Low around 47. Southeast wind 3 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A slight chance of showers before 1pm. Mostly cloudy, with a high near 61. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers, mainly after 1am. Mostly cloudy, with a low around 51. South wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 69. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely before 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Wednesday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnsonburg PA
 41.49°N 78.68°W (Elev. 1499 ft)
Last Update:
4:34 pm EST Mar 4, 2026
Forecast Valid:
5pm EST Mar 4, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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