Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41° N Lon: 78.5° W Elev: 1934 ft.

Overcast

63°F

17°C

Humidity 73%
Wind Speed NE 10 G 17 mph
Barometer 30.15 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 18 Aug 3:35 am EDT
Detailed forecast for

Cameron County

Rest Of Tonight
Mostly cloudy. Lows in the mid 50s. North winds 5 to 10 mph with gusts up to 20 mph.
Monday
Mostly sunny. Highs in the upper 70s. Northeast winds around 5 mph.
Monday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s. East winds around 5 mph.
Tuesday
Mostly cloudy. Highs in the mid 70s. Southeast winds around 5 mph.
Tuesday Night
Mostly cloudy. Lows in the lower 60s. Southeast winds around 5 mph.
Wednesday
Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50 percent.
Wednesday Night
A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50 percent.
Thursday
Partly sunny with a chance of showers. Highs around 80. Chance of rain 30 percent.
Thursday Night
Mostly clear. Lows in the mid 50s.
Friday
Sunny. Very warm with highs in the mid 80s.
Friday Night
Mostly clear. Lows around 60.
Saturday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Very warm with highs in the mid 80s. Chance of rain 30 percent.
Saturday Night
A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 30 percent.
Sunday
Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 40 percent.



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300 AM EDT Mon Aug 18 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database