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Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

37°F

3°C

Humidity 93%
Wind Speed W 10 G 17 mph
Barometer 29.98 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 7 Jan 6:15 pm EST
Extended Forecast for

3 Miles NW Sinnamahoning PA

  • Tonight

    Tonight: Cloudy, with a low around 32. West wind 6 to 9 mph.

    Low: 32 °F

    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44. West wind around 5 mph becoming calm in the morning.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 36. Southeast wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Rain. High near 50. Southeast wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain. Cloudy, with a low around 42. South wind 6 to 9 mph becoming northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Chance Rain

  • Saturday

    Saturday: Rain. High near 49. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 49 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

    Low: 31 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Sunday

    Sunday: A chance of snow showers. Partly sunny, with a high near 33. Chance of precipitation is 50%.

    High: 33 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: A chance of snow showers before 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.

    Low: 22 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Cloudy, with a low around 32. West wind 6 to 9 mph.
Thursday
Partly sunny, with a high near 44. West wind around 5 mph becoming calm in the morning.
Thursday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 36. Southeast wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Friday
Rain. High near 50. Southeast wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain. Cloudy, with a low around 42. South wind 6 to 9 mph becoming northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 49. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain likely before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Sunday
A chance of snow showers. Partly sunny, with a high near 33. Chance of precipitation is 50%.
Sunday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 30.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Partly sunny, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
A chance of snow. Mostly cloudy, with a high near 37. 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:
5:56 pm EST Jan 7, 2026
Forecast Valid:
6pm EST Jan 7, 2026-6pm EST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation