


News Headlines
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 | 88% |
Wind Speed | Calm |
Barometer | 30.12 in |
Dewpoint | 64°F (18°C) |
Visibility | 1.25 mi |
Last update | 14 Jul 6:35 am EDT |
Extended Forecast for
3 Miles NW Sinnamahoning PA
Today
High: 80 °F
Heavy Rain
Tonight
Low: 66 °F
Increasing
CloudsTuesday
High: 85 °F
Mostly Sunny
then Slight
Chance
T-stormsTuesday Night
Low: 68 °F
Partly Cloudy
Wednesday
High: 83 °F
Slight Chance
T-storms then
T-storms
LikelyWednesday Night
Low: 69 °F
T-storms
Likely then
Chance
ShowersThursday
High: 82 °F
Chance
T-storms then
ShowersThursday Night
Low: 68 °F
Showers then
Chance
T-stormsFriday
High: 81 °F
Chance
T-storms then
Showers
Likely
Detailed Forecast
Today
A chance of showers and thunderstorms, mainly between 11am and 4pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 80. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Increasing clouds, with a low around 66. Calm wind.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 68. Light southeast wind.
Wednesday
A slight chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then showers and thunderstorms likely after 5pm. Mostly cloudy, with a high near 83. South wind 3 to 5 mph. 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 and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter 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 82. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 68. 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. Mostly cloudy, with a high near 81. 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 80. 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 80. Chance of precipitation is 50%.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
3 Miles NW Sinnamahoning PA
41.41°N 78.11°W (Elev. 2169 ft)
41.41°N 78.11°W (Elev. 2169 ft)
2:32 am EDT Jul 14, 2025
6am EDT Jul 14, 2025-6pm EDT Jul 20, 2025