National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Overcast

52°F

11°C

Humidity 94%
Wind Speed N 3 mph
Barometer 30.18 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 15 Oct 8:15 am EDT
Extended Forecast for

2 Miles E Grandview Park PA

  • Today

    Today: Showers likely, mainly before noon. Cloudy through mid morning, then gradual clearing, with a high near 61. Northwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, mostly clear, with a low around 35. Northwest wind 3 to 7 mph.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Thursday

    Thursday: Areas of frost before 9am. Otherwise, sunny, with a high near 58. North wind 6 to 10 mph.

    High: 58 °F

    Areas Frost
    then Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 3am. Otherwise, clear, with a low around 29. North wind around 6 mph becoming calm in the evening.

    Low: 29 °F

    Clear then
    Frost

  • Friday

    Friday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 61. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 61 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 37. Chance of precipitation is 20%.

    Low: 37 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.

    Low: 47 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.

    High: 65 °F

    Showers
    Likely

Detailed Forecast

Today
Showers likely, mainly before noon. Cloudy through mid morning, then gradual clearing, with a high near 61. Northwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Areas of frost after 4am. Otherwise, mostly clear, with a low around 35. Northwest wind 3 to 7 mph.
Thursday
Areas of frost before 9am. Otherwise, sunny, with a high near 58. North wind 6 to 10 mph.
Thursday Night
Widespread frost, mainly after 3am. Otherwise, clear, with a low around 29. North wind around 6 mph becoming calm in the evening.
Friday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 61. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 37. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 67.
Saturday Night
A chance of showers after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.
Sunday Night
Showers. Low around 43. Chance of precipitation is 80%.
Monday
Showers likely. Partly sunny, with a high near 58. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 41. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 60.
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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:
8:05 am EDT Oct 15, 2025
Forecast Valid:
8am EDT Oct 15, 2025-6pm EDT Oct 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation