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.

Overcast

30°F

-1°C

Humidity 69%
Wind Speed W 20 G 31 mph
Barometer 29.88 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 11 Jan 2:15 pm EST
Extended Forecast for

5 Miles N Sinnamahoning PA

  • This Afternoon

    This Afternoon: Snow showers likely, mainly between 3pm and 5pm. Mostly cloudy, with a high near 37. West wind around 11 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.

    High: 37 °F

    Snow Showers
    Likely

  • Tonight

    Tonight: A chance of snow showers, mainly before 8pm. Mostly cloudy, with a low around 26. West wind 7 to 13 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.

    Low: 26 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 38. West wind 6 to 10 mph, with gusts as high as 25 mph.

    High: 38 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. West wind around 6 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 44. Southwest wind 3 to 6 mph.

    High: 44 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 1pm, then rain after 1pm. High near 43. Chance of precipitation is 80%.

    High: 43 °F

    Chance
    Showers then
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 1am, then rain and snow likely. Mostly cloudy, with a low around 24. Chance of precipitation is 70%.

    Low: 24 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 30. Chance of precipitation is 50%.

    High: 30 °F

    Chance Snow

Detailed Forecast

This Afternoon
Snow showers likely, mainly between 3pm and 5pm. Mostly cloudy, with a high near 37. West wind around 11 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.
Tonight
A chance of snow showers, mainly before 8pm. Mostly cloudy, with a low around 26. West wind 7 to 13 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 38. West wind 6 to 10 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 29. West wind around 6 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 44. Southwest wind 3 to 6 mph.
Tuesday Night
A chance of showers, mainly after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers before 1pm, then rain after 1pm. High near 43. Chance of precipitation is 80%.
Wednesday Night
Rain likely before 1am, then rain and snow likely. Mostly cloudy, with a low around 24. Chance of precipitation is 70%.
Thursday
A chance of snow. Mostly cloudy, with a high near 30. Chance of precipitation is 50%.
Thursday Night
A chance of snow before 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 30.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
A chance of snow showers. Partly sunny, with a high near 33. 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:
5 Miles N Sinnamahoning PA
 41.45°N 78.04°W (Elev. 1073 ft)
Last Update:
1:41 pm EST Jan 11, 2026
Forecast Valid:
2pm EST Jan 11, 2026-6pm EST Jan 17, 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