National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

4 Miles NW Sinnamahoning PA

Wind Advisory March 13, 02:00pm until March 14, 11:00am
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 27. West wind around 6 mph.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Snow before 4pm, then rain and snow likely between 4pm and 5pm, then rain after 5pm. High near 44. South wind 10 to 16 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 44 °F

    Snow then
    Rain/Snow

  • Friday Night

    Friday Night: Rain likely before 9pm, then a chance of snow between 9pm and midnight. Mostly cloudy, with a low around 28. West wind 16 to 18 mph, with gusts as high as 44 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain/Snow
    Likely then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 41. West wind 10 to 15 mph, with gusts as high as 39 mph.

    High: 41 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of snow after 2am. Mostly cloudy, with a low around 29. Northwest wind around 5 mph becoming light and variable. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Partly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A chance of snow before 8am. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.

    High: 51 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 45. Chance of precipitation is 50%.

    Low: 45 °F

    Chance Rain

  • Monday

    Monday: Showers. High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers

  • Monday Night

    Monday Night: Rain and snow showers likely before 2am, then a chance of snow showers. Mostly cloudy, with a low around 21. Breezy. Chance of precipitation is 60%.

    Low: 21 °F

    Rain/Snow
    Likely and
    Breezy

Detailed Forecast

Overnight
Mostly clear, with a low around 27. West wind around 6 mph.
Friday
Snow before 4pm, then rain and snow likely between 4pm and 5pm, then rain after 5pm. High near 44. South wind 10 to 16 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
Rain likely before 9pm, then a chance of snow between 9pm and midnight. Mostly cloudy, with a low around 28. West wind 16 to 18 mph, with gusts as high as 44 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 41. West wind 10 to 15 mph, with gusts as high as 39 mph.
Saturday Night
A chance of snow after 2am. Mostly cloudy, with a low around 29. Northwest wind around 5 mph becoming light and variable. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday
A chance of snow before 8am. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 45. Chance of precipitation is 50%.
Monday
Showers. High near 62. Chance of precipitation is 90%.
Monday Night
Rain and snow showers likely before 2am, then a chance of snow showers. Mostly cloudy, with a low around 21. Breezy. Chance of precipitation is 60%.
Tuesday
A chance of snow showers before 8am. Mostly cloudy, with a high near 28. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Mostly cloudy, with a high near 42.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Sinnamahoning PA
 41.44°N 78.1°W (Elev. 1818 ft)
Last Update:
2:56 am EDT Mar 13, 2026
Forecast Valid:
3am EDT Mar 13, 2026-6pm EDT Mar 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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