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.

Partly Cloudy

32°F

0°C

Humidity 93%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 17 Oct 7:15 am EDT
Extended Forecast for

7 Miles N Sinnamahoning PA

  • Today

    Today: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 62. Calm wind becoming north around 5 mph.

    High: 62 °F

    Frost then
    Mostly Sunny

  • Tonight

    Tonight: A chance of showers after 4am. Increasing clouds, with a low around 43. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 71. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 2am. Partly cloudy, with a low around 49. Southeast wind around 5 mph. Chance of precipitation is 30%.

    Low: 49 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 2pm. High near 71. South wind 7 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 71 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers. Low around 45. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Showers

  • Monday

    Monday: A chance of showers before 2pm. Partly sunny, with a high near 59. Chance of precipitation is 40%.

    High: 59 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely, mainly after 2pm. Partly sunny, with a high near 59. Chance of precipitation is 60%.

    High: 59 °F

    Showers
    Likely

Detailed Forecast

Today
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 62. Calm wind becoming north around 5 mph.
Tonight
A chance of showers after 4am. Increasing clouds, with a low around 43. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 71. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A chance of showers after 2am. Partly cloudy, with a low around 49. Southeast wind around 5 mph. Chance of precipitation is 30%.
Sunday
Showers, mainly after 2pm. High near 71. South wind 7 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers. Low around 45. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A chance of showers before 2pm. Partly sunny, with a high near 59. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Showers likely, mainly after 2pm. Partly sunny, with a high near 59. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Wednesday
A chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly cloudy, with a high near 55. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles N Sinnamahoning PA
 41.5°N 78.06°W (Elev. 1237 ft)
Last Update:
7:11 am EDT Oct 17, 2025
Forecast Valid:
7am EDT Oct 17, 2025-6pm EDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation