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

41°F

5°C

Humidity 70%
Wind Speed NW 12 G 23 mph
Barometer 30.17 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 6 Nov 9:55 am EST
Extended Forecast for

3 Miles NW Sinnamahoning PA

  • Today

    Today: Partly sunny, with a high near 45. Northwest wind 7 to 11 mph, with gusts as high as 24 mph.

    High: 45 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. Light and variable wind becoming south around 6 mph after midnight.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: Showers after 1pm. High near 54. South wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Mostly Cloudy
    then Showers

  • Friday Night

    Friday Night: Showers, mainly before 1am. Low around 44. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Showers

  • Saturday

    Saturday: A slight chance of showers before 1pm. Partly sunny, with a high near 54. West wind 5 to 8 mph. Chance of precipitation is 20%.

    High: 54 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday

    Sunday: Showers, mainly before 1pm. High near 51. Chance of precipitation is 80%.

    High: 51 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.

    Low: 29 °F

    Chance Snow
    Showers

  • Monday

    Monday: A chance of snow showers. Mostly cloudy, with a high near 35. Chance of precipitation is 50%.

    High: 35 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 45. Northwest wind 7 to 11 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 32. Light and variable wind becoming south around 6 mph after midnight.
Friday
Showers after 1pm. High near 54. South wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Showers, mainly before 1am. Low around 44. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A slight chance of showers before 1pm. Partly sunny, with a high near 54. West wind 5 to 8 mph. Chance of precipitation is 20%.
Saturday Night
Showers likely after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers, mainly before 1pm. High near 51. Chance of precipitation is 80%.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.
Monday
A chance of snow showers. Mostly cloudy, with a high near 35. Chance of precipitation is 50%.
Monday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Veterans Day
A chance of snow showers. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Wednesday
A chance of rain and snow showers. Partly sunny, with a high near 44. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Sinnamahoning PA
 41.41°N 78.11°W (Elev. 2169 ft)
Last Update:
7:33 am EST Nov 6, 2025
Forecast Valid:
10am EST Nov 6, 2025-6pm EST Nov 12, 2025
 
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