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

  • Tonight

    Tonight: Clear, with a low around 40. Southwest wind around 9 mph.

    Low: 40 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 62. Southwest wind 8 to 10 mph, with gusts as high as 23 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 44. Southwest wind around 7 mph.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain, mainly after 2am. Mostly cloudy, with a low around 55. South wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Slight Chance
    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Rain, mainly after 8am. High near 66. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain showers before 2am, then rain and snow showers likely. Low around 35. Chance of precipitation is 90%.

    Low: 35 °F

    Rain then
    Rain/Snow

  • Thursday

    Thursday: Rain and snow showers likely before 8am, then a chance of snow showers between 8am and 2pm. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.

    High: 38 °F

    Rain/Snow
    Likely then
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 40. Southwest wind around 9 mph.
Monday
Sunny, with a high near 62. Southwest wind 8 to 10 mph, with gusts as high as 23 mph.
Monday Night
Clear, with a low around 44. Southwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 66. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of rain, mainly after 2am. Mostly cloudy, with a low around 55. South wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain, mainly after 8am. High near 66. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain showers before 2am, then rain and snow showers likely. Low around 35. Chance of precipitation is 90%.
Thursday
Rain and snow showers likely before 8am, then a chance of snow showers between 8am and 2pm. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 26.
Friday
A chance of snow showers before 2pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 45. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 41.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Sunday
A chance of rain and snow showers. Mostly cloudy, with a high near 45. Chance of precipitation is 50%.
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:
10:01 pm EDT Mar 8, 2026
Forecast Valid:
11pm EDT Mar 8, 2026-6pm EDT Mar 15, 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