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Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast and Breezy

43°F

6°C

Humidity 93%
Wind Speed W 21 G 28 mph
Barometer 29.56 in
Dewpoint 41°F (5°C)
Visibility 7.00 mi
Wind Chill34°F (1°C)
Last update 7 Jan 1:35 am EST
Extended Forecast for

3 Miles E Sinnamahoning PA

  • Overnight

    Overnight: A chance of showers. Patchy fog. Otherwise, cloudy, with a low around 34. West wind around 10 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 40. West wind 7 to 10 mph, with gusts as high as 29 mph.

    High: 40 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32. West wind around 6 mph.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 46. Light and variable wind.

    High: 46 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 4am. Mostly cloudy, with a low around 37. Southeast wind 3 to 8 mph. Winds could gust as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers, mainly after 7am. High near 50. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers. Cloudy, with a low around 42. Chance of precipitation is 50%.

    Low: 42 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers. High near 51. Chance of precipitation is 90%.

    High: 51 °F

    Showers

  • Saturday Night

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

    Low: 31 °F

    Showers
    Likely then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
A chance of showers. Patchy fog. Otherwise, cloudy, with a low around 34. West wind around 10 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 40. West wind 7 to 10 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly cloudy, with a low around 32. West wind around 6 mph.
Thursday
Mostly sunny, with a high near 46. Light and variable wind.
Thursday Night
A chance of showers, mainly after 4am. Mostly cloudy, with a low around 37. Southeast wind 3 to 8 mph. Winds could gust as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers, mainly after 7am. High near 50. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of showers. Cloudy, with a low around 42. Chance of precipitation is 50%.
Saturday
Showers. High near 51. Chance of precipitation is 90%.
Saturday Night
Rain showers likely before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Sunday
A chance of snow showers. Partly sunny, with a high near 36. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Partly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Sinnamahoning PA
 41.38°N 78°W (Elev. 1988 ft)
Last Update:
1:26 am EST Jan 7, 2026
Forecast Valid:
1am EST Jan 7, 2026-6pm EST Jan 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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