


Current conditions at
St Marys Municipal Airport (KOYM)
Lat: 41.41°NLon: 78.5°WElev: 1934ft.
Overcast
77°F
25°C
Humidity | 54% |
Wind Speed | SE 7 mph |
Barometer | 30.25 in |
Dewpoint | 59°F (15°C) |
Visibility | 10.00 mi |
Heat Index | 79°F (26°C) |
Last update | 15 Aug 10:15 am EDT |
Extended Forecast for
Saint Marys PA
Today
High: 86 °F
Mostly Sunny
Tonight
Low: 61 °F
Partly Cloudy
then Patchy
FogSaturday
High: 87 °F
Patchy Fog
then Slight
Chance
T-stormsSaturday Night
Low: 63 °F
Partly Cloudy
then Patchy
FogSunday
High: 84 °F
Chance
Showers and
Patchy Fog
then Showers
LikelySunday Night
Low: 57 °F
Showers
Likely then
Partly CloudyMonday
High: 82 °F
Mostly Sunny
Monday Night
Low: 59 °F
Partly Cloudy
Tuesday
High: 79 °F
Partly Sunny
then Chance
T-storms
Detailed Forecast
Today
Mostly sunny, with a high near 86. Light and variable wind.
Tonight
Patchy fog before 4am, then patchy fog after 5am. Otherwise, partly cloudy, with a low around 61. Calm wind.
Saturday
A slight chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
Patchy fog before 3am, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 63. Calm wind.
Sunday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 84. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 57. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.
Wednesday Night
Mostly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 80.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Saint Marys PA
41.44°N 78.57°W (Elev. 1795 ft)
41.44°N 78.57°W (Elev. 1795 ft)
6:59 am EDT Aug 15, 2025
10am EDT Aug 15, 2025-6pm EDT Aug 21, 2025