Old Saint Marys, Texas Weather
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Weather Forecast for Old Saint Marys, Texas : Refugio County
Issued: 12:46 am CDT Jul 1, 2025 Latitude: 28.1019587 Longitude: -97.2088804 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Independence Day Saturday Sunday Monday
20% chance of thunderstorms on Overnight 40% chance of thunderstorms on Tuesday 20% chance of thunderstorms on Wednesday Partly Sunny on Thursday Mostly Sunny on Independence Day Mostly Sunny on Saturday Sunny on Sunday Sunny on Monday
Low: 79°F High: 87°F High: 87°F High: 88°F High: 89°F High: 89°F High: 89°F High: 89°F
Low: 80°F Low: 82°F Low: 82°F Low: 81°F Low: 81°F Low: 80°F  
Thunderstorms Thunderstorms Thunderstorms Partly Sunny Mostly Sunny Mostly Sunny Sunny Sunny
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Current Conditions at
ROCKPORT - (KRKP)
81°
Clear
as of 1:53 AM CDST
Rel. Humidity: 83%
Dew Point: 75°F
Visibility: 8 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
10 MPH
100° East
Cloud Level(s): Clear
Current Conditions at
CORPUS CHRISTI - (KCRP)
75°
Mostly Cloudy
as of 1:51 AM CDST
Rel. Humidity: 94%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
3 MPH
100° East
Cloud Level(s): Few at 2400ft, Broken at 25000ft
Current Conditions at
CORPUS CHRISTI NAS - (KNGP)
81°
Partly Cloudy
as of 1:56 AM CDST
Rel. Humidity: 83%
Dew Point: 75°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
8 MPH
120° Southeast
Cloud Level(s): Scattered at 2500ft
20% chance of thunderstorms Overnight Overnight... A slight chance of showers, with thunderstorms also possible after 4am. Widespread haze. Mostly cloudy, with a low around 79. Southeast wind around 7 mph. Chance of precipitation is 20%.
40% chance of thunderstorms Tuesday Tuesday... A 40 percent chance of showers and thunderstorms, mainly after 2pm. Widespread haze. Partly sunny, with a high near 87. Heat index values as high as 97. East northeast wind 6 to 14 mph, with gusts as high as 20 mph.
10% chance of thunderstorms Tuesday Night Tuesday Night... A 10 percent chance of showers and thunderstorms before 7pm. Widespread haze. Mostly cloudy, with a low around 80. Southeast wind 7 to 13 mph.
20% chance of thunderstorms Wednesday Wednesday... A 20 percent chance of showers and thunderstorms before 1pm. Widespread haze. Partly sunny, with a high near 87. Heat index values as high as 98. Southeast wind 7 to 14 mph, with gusts as high as 18 mph.
Mostly Cloudy on Wednesday Night Wednesday Night... Widespread haze. Mostly cloudy, with a low around 82. Southeast wind 9 to 13 mph.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 88. Southeast wind 7 to 16 mph, with gusts as high as 21 mph.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 82. Southeast wind 10 to 14 mph, with gusts as high as 21 mph.
Mostly Sunny on Independence Day Independence Day... Mostly sunny, with a high near 89. South southeast wind 9 to 16 mph, with gusts as high as 21 mph.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 81. South southeast wind 9 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 89.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 81.
Sunny on Sunday Sunday... Sunny, with a high near 89.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 80.
Sunny on Monday Monday... Sunny, with a high near 89.
Sun Almanac for Old Saint Marys, Texas
Sunrise: 06:36 AM
Sunset: 8:30 PM
Civil Sunrise:06:09 AM
Civil Sunset: 8:56 PM
Nautical Sunrise: 05:37 AM
Nautical Sunset: 9:28 PM
Astro Sunrise: 05:03 AM
Astro Sunset: 10:03 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.