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

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 14 Jul 5:15 am EDT
Extended Forecast for

5 Miles SSW Cross Fork PA

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 82. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly between 7pm and 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 66. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind. Chance of precipitation is 20%.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 68. Calm wind.

    Low: 68 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A chance of thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 86. Chance of precipitation is 80%.

    High: 86 °F

    Chance
    T-storms then
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly before 8pm. Low around 69. Chance of precipitation is 80%.

    Low: 69 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 82. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, mainly between 7pm and 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 66. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind. Chance of precipitation is 20%.
Tuesday Night
Increasing clouds, with a low around 68. Calm wind.
Wednesday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 86. Chance of precipitation is 80%.
Thursday Night
Showers, mainly before 8pm. Low around 69. Chance of precipitation is 80%.
Friday
A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Friday Night
Showers likely before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Saturday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Cross Fork PA
 41.41°N 77.87°W (Elev. 1736 ft)
Last Update:
2:32 am EDT Jul 14, 2025
Forecast Valid:
5am EDT Jul 14, 2025-6pm EDT Jul 20, 2025
 
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Additional Resources

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Chance of Precipitation