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- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
- October 1-7 Rainfall Improves Long-Term Drought, but Severe to Extreme Conditions Remain for Some. Click Here for Details.
- New: October-December2026 Outlook - After a brutally hot and dry September, October brings the pattern change to wetter and less hot, with above average rainfall to close out 2026; flash flooding, water supply, & hazardous marine conditions in focus
Current conditions at
Mid Valley Airport (KTXW)
Lat: 26.18°NLon: 97.97°WElev: 70ft.
Fair
80°F
27°C
| Humidity | 80% |
| Wind Speed | SE 10 mph |
| Barometer | 29.95 in |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 84°F (29°C) |
| Last update | 14 Oct 11:35 pm CDT |
Extended Forecast for
Mercedes TX
Tonight
Low: 74 °F
Mostly Clear
Thursday
High: 93 °F
Sunny
Thursday Night
Low: 71 °F
Mostly Clear
Friday
High: 89 °F
Sunny then
Slight Chance
Showers and
BreezyFriday Night
Low: 62 °F
Mostly Cloudy
and WindySaturday
High: 74 °F
Mostly Sunny
and BreezySaturday Night
Low: 59 °F
Partly Cloudy
Sunday
High: 80 °F
Mostly Sunny
then Slight
Chance
ShowersSunday Night
Low: 63 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 74. East southeast wind 9 to 11 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 93. East southeast wind 8 to 13 mph, with gusts as high as 21 mph.
Thursday Night
Mostly clear, with a low around 71. East wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.
Friday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 89. Breezy, with a north northeast wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Mostly cloudy, with a low around 62. Windy, with a north wind 20 to 28 mph, with gusts as high as 47 mph.
Saturday
Mostly sunny, with a high near 74. Breezy, with a north northwest wind 16 to 23 mph, with gusts as high as 44 mph.
Saturday Night
Partly cloudy, with a low around 59. North northwest wind 5 to 10 mph, with gusts as high as 23 mph.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 80. North northwest wind 9 to 11 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 63. North northeast wind 3 to 8 mph.
Monday
Mostly sunny, with a high near 85. North wind 7 to 9 mph.
Monday Night
Partly cloudy, with a low around 68. Northeast wind 5 to 9 mph becoming light north northeast. Winds could gust as high as 20 mph.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mercedes TX
26.16°N 97.93°W
26.16°N 97.93°W
11:30 pm CDT Oct 14, 2026
11pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
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