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

61°F

16°C

Humidity 100%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 61°F (16°C)
Visibility 0.75 mi
Last update 17 Jun 8:15 am EDT
Extended Forecast for

5 Miles NW Driftwood PA

Flood Watch June 17, 11:00am until June 17, 10:00pm
Click here for hazard details and duration
Flood Watch

  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. Patchy fog before 9am. High near 76. South wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 76 °F

    Chance
    Showers and
    Patchy Fog
    then Heavy
    Rain

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before midnight, then a chance of showers and thunderstorms after midnight. Some of the storms could produce heavy rainfall. Low around 67. Light southeast wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    Heavy Rain
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 84. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Low around 68. Southwest wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers then
    Chance
    Showers

  • Juneteenth

    Juneteenth: Showers likely, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 83. Southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. Patchy fog before 9am. High near 76. South wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers and possibly a thunderstorm, mainly before midnight, then a chance of showers and thunderstorms after midnight. Some of the storms could produce heavy rainfall. Low around 67. Light southeast wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 84. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Low around 68. Southwest wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Showers likely, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 83. Southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Partly sunny, with a high near 89.
Saturday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Sunday
Mostly sunny and hot, with a high near 94.
Sunday Night
Partly cloudy, with a low around 71.
Monday
Sunny and hot, with a high near 96.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Driftwood PA
 41.4°N 78.2°W (Elev. 997 ft)
Last Update:
3:46 am EDT Jun 17, 2025
Forecast Valid:
8am EDT Jun 17, 2025-6pm EDT Jun 23, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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