National Weather Service

News Headlines

Summer and Fall 2026 Student Volunteer Applications Due March 15th

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

St Marys Municipal Airport (KOYM)

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

Humidity	NA
Wind Speed	NA
Barometer	NA
Dewpoint	NA
Visibility	NA
Last update	* Not a current observation *

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Cameron County

Today

Showers. A chance of thunderstorms. Some thunderstorms may produce damaging winds this morning. Some thunderstorms may be severe with damaging winds this afternoon. Continued unseasonably warm with highs in the upper 60s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Tonight

Rain showers with a slight chance of thunderstorms in the evening, then a chance of rain showers after midnight. Some thunderstorms may produce damaging winds in the evening. Much cooler with lows around 30. Southwest winds 10 to 15 mph, becoming west after midnight. Gusts up to 35 mph. Chance of rain near 100 percent.

Thursday

Mostly cloudy in the morning, then becoming mostly sunny. Much cooler with highs in the upper 30s. Northwest winds 10 to 15 mph with gusts up to 35 mph.

Thursday Night

Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s. West winds 5 to 10 mph with gusts up to 25 mph, becoming southwest after midnight.

Friday

Mostly cloudy with a chance of snow. A chance of rain in the afternoon. Little or no snow accumulation. Not as cool with highs in the upper 40s. South winds 10 to 15 mph. Gusts up to 30 mph, increasing to 40 mph in the afternoon. Chance of precipitation 50 percent.

Friday Night

A chance of rain in the evening. Mostly cloudy with a chance of snow. Lows in the mid 20s. Chance of precipitation 50 percent.

Saturday

Partly sunny. Highs in the lower 40s.

Saturday Night

Mostly cloudy with a 50 percent chance of snow showers. Lows in the upper 20s.

Sunday

Mostly cloudy with a chance of snow showers. A chance of rain showers in the afternoon. Not as cool with highs in the lower 50s. Chance of precipitation 50 percent.

Sunday Night

Mostly cloudy. A chance of showers in the evening, then showers after midnight. Lows in the mid 30s. Chance of rain 90 percent.

Monday

Snow showers likely. Rain showers, mainly in the morning. Highs in the upper 40s. Chance of precipitation 90 percent.

Monday Night

Mostly cloudy with a 30 percent chance of snow showers. Much cooler with lows around 20. Wind chill values as low as 5 above.

Tuesday

Mostly cloudy with a chance of snow showers in the morning, then partly sunny in the afternoon. Much colder with highs in the upper 20s. Chance of snow 30 percent. Wind chill values as low as 5 above.