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Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Mostly Cloudy

12°F

-11°C

Humidity 85%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 9°F (-13°C)
Visibility 3.00 mi
Last update 5 Feb 12:55 am EST
Extended Forecast for

7 Miles NE Grandview Park PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 3. Calm wind.

    Low: 3 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 24. Calm wind.

    High: 24 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 9. Calm wind.

    Low: 9 °F

    Mostly Cloudy

  • Friday

    Friday: Snow, mainly after 11am. High near 26. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 26 °F

    Snow Likely
    then Snow

  • Friday Night

    Friday Night: A chance of snow before 1am, then a chance of snow showers after 1am. Mostly cloudy, with a low around -4. Northwest wind 5 to 15 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Low: -4 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny and cold, with a high near 8.

    High: 8 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -6.

    Low: -6 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 17.

    High: 17 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 1.

    Low: 1 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 3. Calm wind.
Thursday
Mostly cloudy, with a high near 24. Calm wind.
Thursday Night
Mostly cloudy, with a low around 9. Calm wind.
Friday
Snow, mainly after 11am. High near 26. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Friday Night
A chance of snow before 1am, then a chance of snow showers after 1am. Mostly cloudy, with a low around -4. Northwest wind 5 to 15 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Saturday
Partly sunny and cold, with a high near 8.
Saturday Night
Mostly cloudy, with a low around -6.
Sunday
Mostly sunny, with a high near 17.
Sunday Night
Partly cloudy, with a low around 1.
Monday
Partly sunny, with a high near 29.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
A chance of rain. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NE Grandview Park PA
 41.49°N 78.45°W (Elev. 1414 ft)
Last Update:
12:22 am EST Feb 5, 2026
Forecast Valid:
12am EST Feb 5, 2026-6pm EST Feb 11, 2026
 
Forecast Discussion
 
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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