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

Castroville Municipal Airport (KCVB)

Lat: 29.34°NLon: 98.85°WElev: 771ft.

Overcast

77°F

25°C

Humidity 79%
Wind Speed SE 15 G 22 mph
Barometer 29.84 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 16 May 11:35 pm CDT
Extended Forecast for

Rio Medina TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 75. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 92. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 92 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 78. Southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 78 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Mostly cloudy, with a high near 93. Heat index values as high as 101. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 79. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 79 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 74 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 88. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 88 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. East wind 5 to 10 mph.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 75. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Mostly cloudy, with a high near 92. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 78. Southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Mostly cloudy, with a high near 93. Heat index values as high as 101. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 79. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 88. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. East wind 5 to 10 mph.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rio Medina TX
 29.45°N 98.9°W (Elev. 804 ft)
Last Update:
11:32 pm CDT May 16, 2026
Forecast Valid:
11pm CDT May 16, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
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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