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Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

25°F

-4°C

Humidity 80%
Wind Speed W 9 G 18 mph
Barometer 30.01 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 12 Feb 1:35 am EST
Extended Forecast for

3 Miles E Sinnamahoning PA

  • Overnight

    Overnight: Scattered snow showers. Cloudy, with a low around 20. Northwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 20 °F

    Scattered
    Snow Showers

  • Thursday

    Thursday: Isolated snow showers before 11am. Cloudy, with a high near 27. Northwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 27 °F

    Isolated Snow
    Showers then
    Cloudy

  • Thursday Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 13. Northwest wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 13 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 32. West wind around 6 mph.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22. West wind around 7 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Scattered snow showers. Cloudy, with a low around 20. Northwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Thursday
Isolated snow showers before 11am. Cloudy, with a high near 27. Northwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 13. Northwest wind 5 to 9 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 32. West wind around 6 mph.
Friday Night
Mostly cloudy, with a low around 22. West wind around 7 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Mostly cloudy, with a high near 41.
Sunday Night
Partly cloudy, with a low around 27.
Washington's Birthday
Mostly sunny, with a high near 43.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 46.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Wednesday
Showers likely. Mostly cloudy, with a high near 46. Chance of precipitation is 60%.
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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:
1:21 am EST Feb 12, 2026
Forecast Valid:
1am EST Feb 12, 2026-6pm EST Feb 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation