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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 75%
Wind Speed W 18 G 26 mph
Barometer 29.86 in
Dewpoint 23°F (-5°C)
Visibility 7.00 mi
Wind Chill18°F (-8°C)
Last update 11 Jan 1:55 pm EST
Extended Forecast for

Grandview Park PA

  • This Afternoon

    This Afternoon: Snow showers, mainly after 3pm. High near 31. West wind around 17 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 31 °F

    Snow Showers

  • Tonight

    Tonight: Snow showers likely, mainly before 7pm. Mostly cloudy, with a low around 23. West wind 11 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Snow Showers
    Likely then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 33. West wind 10 to 15 mph, with gusts as high as 29 mph.

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. West wind 8 to 10 mph, with gusts as high as 23 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 39. South wind 7 to 10 mph, with gusts as high as 22 mph.

    High: 39 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely before 1pm, then rain after 1pm. High near 39. Chance of precipitation is 80%.

    High: 39 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 70%.

    Low: 19 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 25. Chance of precipitation is 50%.

    High: 25 °F

    Chance Snow

Detailed Forecast

This Afternoon
Snow showers, mainly after 3pm. High near 31. West wind around 17 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Snow showers likely, mainly before 7pm. Mostly cloudy, with a low around 23. West wind 11 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 33. West wind 10 to 15 mph, with gusts as high as 29 mph.
Monday Night
Partly cloudy, with a low around 25. West wind 8 to 10 mph, with gusts as high as 23 mph.
Tuesday
Partly sunny, with a high near 39. South wind 7 to 10 mph, with gusts as high as 22 mph.
Tuesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely before 1pm, then rain after 1pm. High near 39. Chance of precipitation is 80%.
Wednesday Night
Rain and snow likely, becoming all snow after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 70%.
Thursday
A chance of snow. Mostly cloudy, with a high near 25. Chance of precipitation is 50%.
Thursday Night
A chance of snow before 1am. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 25.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.
Saturday
A chance of snow showers. Partly sunny, with a high near 28. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grandview Park PA
 41.41°N 78.55°W (Elev. 1804 ft)
Last Update:
1:41 pm EST Jan 11, 2026
Forecast Valid:
2pm EST Jan 11, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation