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

6 Miles ESE Sinnamahoning PA

  • Tonight

    Tonight: Rain, mainly before midnight. Patchy fog after midnight. Low around 33. Light and variable wind becoming south around 6 mph in the evening. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Rain then
    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: A slight chance of showers between 4pm and 5pm. Areas of fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 52. North wind around 5 mph becoming calm in the morning. Chance of precipitation is 20%.

    High: 52 °F

    Areas Fog
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 1am. Cloudy, with a low around 41. Southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers. High near 55. Southeast wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 55 °F

    Showers

  • Thursday Night

    Thursday Night: Showers. Low around 49. South wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers

  • Friday

    Friday: A slight chance of showers before 1pm. Partly sunny, with a high near 64. Chance of precipitation is 20%.

    High: 64 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers, mainly after 1pm. High near 63. Chance of precipitation is 80%.

    High: 63 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely

Detailed Forecast

Tonight
Rain, mainly before midnight. Patchy fog after midnight. Low around 33. Light and variable wind becoming south around 6 mph in the evening. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A slight chance of showers between 4pm and 5pm. Areas of fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 52. North wind around 5 mph becoming calm in the morning. Chance of precipitation is 20%.
Wednesday Night
Showers likely, mainly after 1am. Cloudy, with a low around 41. Southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers. High near 55. Southeast wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Showers. Low around 49. South wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A slight chance of showers before 1pm. Partly sunny, with a high near 64. Chance of precipitation is 20%.
Friday Night
A chance of showers after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Saturday
Showers, mainly after 1pm. High near 63. Chance of precipitation is 80%.
Saturday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
A chance of showers. Mostly sunny, with a high near 67. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Sinnamahoning PA
 41.35°N 77.94°W (Elev. 1998 ft)
Last Update:
8:36 pm EST Mar 3, 2026
Forecast Valid:
8pm EST Mar 3, 2026-6pm EDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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