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

74°F

23°C

Humidity 90%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 30 Jul 6:35 am CDT
Extended Forecast for

Mercedes TX

  • Today

    Today: Mostly sunny, with a high near 99. Heat index values as high as 107. Light south wind becoming east southeast 5 to 10 mph in the afternoon.

    High: 99 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 77. South wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 100. Heat index values as high as 108. South wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. Southeast wind 6 to 14 mph, with gusts as high as 21 mph.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. South southeast wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 79. South southeast wind 6 to 14 mph, with gusts as high as 22 mph.

    Low: 79 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 101. South southeast wind 6 to 11 mph.

    High: 101 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78. Southeast wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 100. South southeast wind 6 to 11 mph.

    High: 100 °F

    Hot

Detailed Forecast

Today
Mostly sunny, with a high near 99. Heat index values as high as 107. Light south wind becoming east southeast 5 to 10 mph in the afternoon.
Tonight
Partly cloudy, with a low around 77. South wind 6 to 13 mph, with gusts as high as 20 mph.
Thursday
Sunny and hot, with a high near 100. Heat index values as high as 108. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 77. Southeast wind 6 to 14 mph, with gusts as high as 21 mph.
Friday
Sunny and hot, with a high near 100. South southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 79. South southeast wind 6 to 14 mph, with gusts as high as 22 mph.
Saturday
Sunny and hot, with a high near 101. South southeast wind 6 to 11 mph.
Saturday Night
Mostly clear, with a low around 78. Southeast wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny and hot, with a high near 100. South southeast wind 6 to 11 mph.
Sunday Night
Mostly clear, with a low around 78. South southeast wind 8 to 14 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 99. South southeast wind 7 to 13 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 78.
Tuesday
Mostly sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mercedes TX
 26.14°N 97.93°W
Last Update:
6:45 am CDT Jul 30, 2025
Forecast Valid:
6am CDT Jul 30, 2025-6pm CDT Aug 5, 2025
 
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Additional Resources

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