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

3 Miles NW Sinnamahoning PA

Winter Weather Advisory March 3, 07:00am until March 3, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 35. South wind around 7 mph.

    High: 35 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 25. Southeast wind around 9 mph.

    Low: 25 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Freezing rain likely before 10am, then rain or freezing rain between 10am and 1pm, then rain after 1pm. High near 39. Southeast wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.2 of an inch possible.

    High: 39 °F

    Rain/Freezing
    Rain

  • Tuesday Night

    Tuesday Night: Showers, mainly before 1am. Low around 36. South wind around 6 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers after 1pm. Mostly cloudy, with a high near 50. North wind around 5 mph becoming light and variable in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely. Cloudy, with a low around 43. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.

    High: 56 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers. Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Showers

  • Friday

    Friday: A chance of showers before 1pm. Mostly cloudy, with a high near 61. Chance of precipitation is 30%.

    High: 61 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 35. South wind around 7 mph.
Tonight
Increasing clouds, with a low around 25. Southeast wind around 9 mph.
Tuesday
Freezing rain likely before 10am, then rain or freezing rain between 10am and 1pm, then rain after 1pm. High near 39. Southeast wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.2 of an inch possible.
Tuesday Night
Showers, mainly before 1am. Low around 36. South wind around 6 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of showers after 1pm. Mostly cloudy, with a high near 50. North wind around 5 mph becoming light and variable in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers likely. Cloudy, with a low around 43. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.
Thursday Night
Showers. Low around 50. Chance of precipitation is 90%.
Friday
A chance of showers before 1pm. Mostly cloudy, with a high near 61. Chance of precipitation is 30%.
Friday Night
A chance of showers after 1am. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Saturday
Showers likely. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Sunday
A chance of showers. Mostly cloudy, with a high near 61. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Sinnamahoning PA
 41.41°N 78.11°W (Elev. 2169 ft)
Last Update:
11:10 am EST Mar 2, 2026
Forecast Valid:
11am EST Mar 2, 2026-6pm EDT Mar 8, 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