Old Saint Marys, Texas Weather
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Weather Forecast for Old Saint Marys, Texas : Refugio County
Issued: 12:26 am CDT Sep 14, 2025 Latitude: 28.1019587 Longitude: -97.2088804 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Sunny on Today Cloudy on Tonight 30% chance of thunderstorms on Monday 20% chance of thunderstorms on Tuesday 30% chance of thunderstorms on Wednesday 30% chance of thunderstorms on Thursday 30% chance of thunderstorms on Friday 20% chance of thunderstorms on Saturday
High: 89°F Low: 80°F High: 89°F High: 89°F High: 88°F High: 88°F High: 88°F High: 90°F
Low: 78°F Low: 78°F Low: 78°F Low: 78°F Low: 78°F  
Mostly Sunny Cloudy Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
ROCKPORT - (KRKP)
82°
Clear
as of 6:53 AM CDST
Rel. Humidity: 69%
Dew Point: 72°F
Visibility: 9 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
9 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
CORPUS CHRISTI - (KCRP)
75°
Mostly Cloudy
as of 6:51 AM CDST
Rel. Humidity: 83%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 3200ft, Scattered at 4200ft, Broken at 25000ft
Current Conditions at
CORPUS CHRISTI NAS - (KNGP)
82°
Mostly Cloudy
as of 6:56 AM CDST
Rel. Humidity: 69%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
7 MPH
140° Southeast
Cloud Level(s): Broken at 3200ft
Mostly Sunny on Today Today... Mostly sunny, with a high near 89. Heat index values as high as 97. Southeast wind 8 to 15 mph, with gusts as high as 18 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 80. East southeast wind 8 to 15 mph, with gusts as high as 18 mph.
30% chance of thunderstorms Monday Monday... A chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Sunny, with a high near 89. Heat index values as high as 95. East wind 7 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 78. East southeast wind 8 to 15 mph, with gusts as high as 18 mph.
20% chance of thunderstorms Tuesday Tuesday... A slight chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 89. East northeast wind 8 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
20% chance of thunderstorms Tuesday Night Tuesday Night... A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. East southeast wind 7 to 15 mph.
30% chance of thunderstorms Wednesday Wednesday... A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. East southeast wind 7 to 14 mph.
20% chance of rain Wednesday Night Wednesday Night... A 20 percent chance of showers after 1am. Partly cloudy, with a low around 78. East southeast wind 7 to 13 mph.
30% chance of thunderstorms Thursday Thursday... A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind 7 to 14 mph.
20% chance of rain Thursday Night Thursday Night... A 20 percent chance of showers. Mostly clear, with a low around 78.
30% chance of thunderstorms Friday Friday... A 30 percent chance of showers and thunderstorms. Sunny, with a high near 88.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 78.
20% chance of thunderstorms Saturday Saturday... A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
Sun Almanac for Old Saint Marys, Texas
Sunrise: 07:14 AM
Sunset: 7:35 PM
Civil Sunrise:06:50 AM
Civil Sunset: 7:58 PM
Nautical Sunrise: 06:23 AM
Nautical Sunset: 8:26 PM
Astro Sunrise: 05:55 AM
Astro Sunset: 8:53 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.