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

Mid Valley Airport (KTXW)

Lat: 26.18°NLon: 97.97°WElev: 70ft.

Fair

77°F

25°C

Humidity 91%
Wind Speed N 5 mph
Barometer 29.89 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 8 Oct 12:55 am CDT
Extended Forecast for

Mercedes TX

  • Overnight

    Overnight: Mostly clear, with a low around 74. North northwest wind 3 to 7 mph.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 2pm. Mostly sunny, with a high near 89. North wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 89 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Clear, with a low around 71. Northeast wind 5 to 8 mph becoming calm. Winds could gust as high as 20 mph.

    Low: 71 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 90. North wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 71. Northeast wind 5 to 8 mph becoming calm. Winds could gust as high as 20 mph.

    Low: 71 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 96. North northeast wind 5 to 8 mph.

    High: 96 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72. Southeast wind 3 to 7 mph.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 90. Light east southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 75. East southeast wind 5 to 10 mph, with gusts as high as 21 mph.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 74. North northwest wind 3 to 7 mph.
Thursday
Showers and thunderstorms likely, mainly before 2pm. Mostly sunny, with a high near 89. North wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Thursday Night
Clear, with a low around 71. Northeast wind 5 to 8 mph becoming calm. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 90. North wind 7 to 11 mph, with gusts as high as 22 mph.
Friday Night
Clear, with a low around 71. Northeast wind 5 to 8 mph becoming calm. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 96. North northeast wind 5 to 8 mph.
Saturday Night
Mostly clear, with a low around 72. Southeast wind 3 to 7 mph.
Sunday
Mostly sunny, with a high near 90. Light east southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 75. East southeast wind 5 to 10 mph, with gusts as high as 21 mph.
Columbus Day
Mostly sunny, with a high near 93. Southeast wind 5 to 13 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 77. Southeast wind 6 to 11 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny, with a high near 93.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mercedes TX
 26.16°N 97.93°W
Last Update:
1:00 am CDT Oct 8, 2026
Forecast Valid:
1am CDT Oct 8, 2026-6pm CDT Oct 14, 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