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

66°F

19°C

Humidity 73%
Wind Speed E 12 G 16 mph
Barometer 30.12 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 31 Jul 9:15 am EDT
Extended Forecast for

2 Miles E Grandview Park PA

  • Today

    Today: Showers and possibly a thunderstorm. High near 71. Northeast wind 6 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers

  • Tonight

    Tonight: Showers likely, mainly before 7pm. Mostly cloudy, with a low around 55. Northeast wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 2pm. Mostly sunny, with a high near 75. Northeast wind around 9 mph. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 47. North wind around 6 mph becoming calm after midnight.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 71. Northeast wind 6 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely, mainly before 7pm. Mostly cloudy, with a low around 55. Northeast wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A slight chance of showers before 2pm. Mostly sunny, with a high near 75. Northeast wind around 9 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 47. North wind around 6 mph becoming calm after midnight.
Saturday
Sunny, with a high near 77. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Grandview Park PA
 41.41°N 78.49°W (Elev. 1752 ft)
Last Update:
7:18 am EDT Jul 31, 2025
Forecast Valid:
9am EDT Jul 31, 2025-6pm EDT Aug 6, 2025
 
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