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

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Current conditions at

Castroville Municipal Airport (KCVB)

Lat: 29.34°NLon: 98.85°WElev: 771ft.

A Few Clouds

86°F

30°C

Humidity 62%
Wind Speed N 5 mph
Barometer 30.02 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 23 Aug 10:35 am CDT
Extended Forecast for

Rio Medina TX

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 94. East northeast wind 5 to 10 mph.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. East northeast wind 5 to 10 mph becoming light and variable in the evening.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 100. North wind 5 to 10 mph becoming east in the afternoon.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69. East southeast wind 5 to 10 mph becoming light southeast in the evening.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 70. South southeast wind 5 to 10 mph becoming light southeast after midnight.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Light east southeast wind becoming southeast 5 to 10 mph in the morning.

    High: 95 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. East southeast wind 5 to 10 mph.

    Low: 73 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. East southeast wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 93 °F

    Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 94. East northeast wind 5 to 10 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 71. East northeast wind 5 to 10 mph becoming light and variable in the evening.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 100. North wind 5 to 10 mph becoming east in the afternoon.
Sunday Night
Mostly clear, with a low around 69. East southeast wind 5 to 10 mph becoming light southeast in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Light east wind becoming southeast 5 to 10 mph in the morning.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 70. South southeast wind 5 to 10 mph becoming light southeast after midnight.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Light east southeast wind becoming southeast 5 to 10 mph in the morning.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. East southeast wind 5 to 10 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. East southeast wind 5 to 10 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 73.
Friday
Mostly sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rio Medina TX
 29.45°N 98.9°W (Elev. 804 ft)
Last Update:
7:42 am CDT Aug 23, 2025
Forecast Valid:
10am CDT Aug 23, 2025-6pm CDT Aug 29, 2025
 
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