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

50°F

10°C

Humidity 58%
Wind Speed W 5 mph
Barometer 30.06 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 1 Nov 5:15 pm EDT
Extended Forecast for

4 Miles ESE Sinnamahoning PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. West wind around 6 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 58. Calm wind becoming west around 5 mph.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Light south wind.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 60. Southwest wind 5 to 9 mph, with gusts as high as 23 mph.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. West wind around 8 mph, with gusts as high as 23 mph.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 2pm. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.

    High: 59 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 37. Chance of precipitation is 50%.

    Low: 37 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. West wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 58. Calm wind becoming west around 5 mph.
Sunday Night
Mostly clear, with a low around 37. Light south wind.
Monday
Sunny, with a high near 60. Southwest wind 5 to 9 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 37. West wind around 8 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
A chance of showers after 2pm. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 37. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
A chance of showers. Mostly cloudy, with a high near 56. Chance of precipitation is 40%.
Friday Night
Showers likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Saturday
A chance of showers. Partly sunny, with a high near 57. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Sinnamahoning PA
 41.36°N 78°W (Elev. 1598 ft)
Last Update:
2:31 pm EDT Nov 1, 2025
Forecast Valid:
5pm EDT Nov 1, 2025-6pm EST Nov 8, 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