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

45°F

7°C

Humidity 57%
Wind Speed SE 6 mph
Barometer 30.18 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 24 Nov 8:55 pm EST
Extended Forecast for

3 Miles E Sinnamahoning PA

  • Tonight

    Tonight: Cloudy, with a low around 38. South wind 3 to 6 mph.

    Low: 38 °F

    Cloudy

  • Tuesday

    Tuesday: Periods of rain, mainly after 11am. High near 48. Southeast wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain Likely
    then Rain

  • Tuesday Night

    Tuesday Night: Showers. Low around 43. South wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Showers

  • Wednesday

    Wednesday: Showers. High near 58. South wind 6 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow showers before 10pm, then a slight chance of snow showers. Mostly cloudy, with a low around 28. West wind 11 to 14 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Thanksgiving Day

    Thanksgiving Day: A chance of snow showers, mainly after 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.

    High: 32 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Snow showers likely. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.

    Low: 26 °F

    Snow Showers
    Likely

  • Friday

    Friday: Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.

    High: 33 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 38. South wind 3 to 6 mph.
Tuesday
Periods of rain, mainly after 11am. High near 48. Southeast wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Showers. Low around 43. South wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers. High near 58. South wind 6 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A slight chance of rain and snow showers before 10pm, then a slight chance of snow showers. Mostly cloudy, with a low around 28. West wind 11 to 14 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Thanksgiving Day
A chance of snow showers, mainly after 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.
Thursday Night
Snow showers likely. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Friday
Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Mostly cloudy, with a high near 33.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.
Sunday Night
Rain likely. Cloudy, with a low around 30. Chance of precipitation is 60%.
Monday
Rain likely. Mostly cloudy, with a high near 44. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Sinnamahoning PA
 41.38°N 78°W (Elev. 1988 ft)
Last Update:
7:06 pm EST Nov 24, 2025
Forecast Valid:
9pm EST Nov 24, 2025-6pm EST Dec 1, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation