


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 | 94% |
Wind Speed | E 6 mph |
Barometer | 29.99 in |
Dewpoint | 66°F (19°C) |
Visibility | 5.00 mi |
Last update | 17 Jun 4:55 pm EDT |
Extended Forecast for
2 Miles SSW Sinnamahoning PA
Flood Watch June 17, 05:07pm until June 17, 10:00pm
NOW until 10:00pm Tue
Flood Watch
This Afternoon
High: 77 °F
Heavy Rain
Tonight
Low: 67 °F
Heavy Rain
then Chance
ShowersWednesday
High: 84 °F
Showers
LikelyWednesday Night
Low: 69 °F
Chance
ShowersJuneteenth
High: 83 °F
Showers
LikelyThursday Night
Low: 59 °F
Showers
Likely then
Partly CloudyFriday
High: 84 °F
Sunny
Friday Night
Low: 61 °F
Partly Cloudy
Detailed Forecast
This Afternoon
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 77. South wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 1am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 67. Light southeast wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 69. Southwest wind 3 to 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. West wind 7 to 11 mph, with gusts as high as 25 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
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Mostly sunny and hot, with a high near 95.
Sunday Night
Mostly clear, with a low around 71.
Monday
Sunny and hot, with a high near 96.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Sunny and hot, with a high near 96.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles SSW Sinnamahoning PA
41.34°N 78.06°W (Elev. 899 ft)
41.34°N 78.06°W (Elev. 899 ft)
4:47 pm EDT Jun 17, 2025
5pm EDT Jun 17, 2025-6pm EDT Jun 24, 2025