National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Austin PASimilar City Names

Winter Weather Advisory March 16, 05:00pm until March 17, 02:00am
Wind Advisory March 16, 11:51am until March 16, 02:00pm
Click here for hazard details and duration
Winter Weather Advisory
Wind Advisory
  •  
    Wind Advisory March 16, 11:51am until March 16, 02:00pm

    NOW until 2:00pm Mon

    Wind Advisory

  • Today

    High: 63 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Snow showers, possibly mixed with rain, becoming all snow after 9pm. The snow could be heavy at times. Low around 18. West wind 11 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 18 °F

    Rain/Snow
    then Chance
    Snow Showers

  • Tuesday

    Tuesday: A chance of snow showers, mainly between 7am and 2pm. Mostly cloudy, with a high near 27. West wind 14 to 17 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.

    High: 27 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 15. West wind 5 to 10 mph, with gusts as high as 22 mph.

    Low: 15 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 35. South wind 3 to 7 mph.

    High: 35 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A slight chance of snow showers after 2am. Mostly cloudy, with a low around 26. Chance of precipitation is 20%.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: A chance of showers after 2pm. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.

    High: 43 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 2am. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. Some of the storms could be severe. High near 63. South wind 13 to 15 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Snow showers, possibly mixed with rain, becoming all snow after 9pm. The snow could be heavy at times. Low around 18. West wind 11 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Tuesday
A chance of snow showers, mainly between 7am and 2pm. Mostly cloudy, with a high near 27. West wind 14 to 17 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 15. West wind 5 to 10 mph, with gusts as high as 22 mph.
Wednesday
Mostly cloudy, with a high near 35. South wind 3 to 7 mph.
Wednesday Night
A slight chance of snow showers after 2am. Mostly cloudy, with a low around 26. Chance of precipitation is 20%.
Thursday
A chance of showers after 2pm. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 49.
Friday Night
A chance of rain showers after 8pm, mixing with snow after 2am. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Saturday
A chance of rain and snow showers. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Austin PASimilar City Names
 41.63°N 78.1°W (Elev. 1739 ft)
Last Update:
11:35 am EDT Mar 16, 2026
Forecast Valid:
11am EDT Mar 16, 2026-6pm EDT Mar 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation