News Headlines
- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
- 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.
Mostly Cloudy
88°F
31°C
| Humidity | 56% |
| Wind Speed | N 16 mph |
| Barometer | 29.83 in |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 93°F (34°C) |
| Last update | 7 Oct 5:15 pm CDT |
Extended Forecast for
Mercedes TX
This Afternoon

High: 86 °F
Chance
T-stormsTonight
Low: 74 °F
Slight Chance
T-storms then
Mostly ClearThursday
High: 95 °F
Sunny then
Chance
T-stormsThursday Night

Low: 73 °F
Mostly Clear
Friday

High: 89 °F
Sunny
Friday Night

Low: 71 °F
Mostly Clear
Saturday

High: 96 °F
Sunny
Saturday Night

Low: 72 °F
Mostly Clear
Sunday

High: 90 °F
Mostly Sunny
Detailed Forecast
This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a steady temperature around 86. North northeast wind around 13 mph, with gusts as high as 25 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 74. North northeast wind 5 to 9 mph becoming light north. Winds could gust as high as 21 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 5pm. Sunny, with a high near 95. Northeast wind 8 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 73. Northeast wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 89. North wind 8 to 13 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 71. Northeast wind 5 to 9 mph becoming calm. Winds could gust as high as 21 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.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny, with a high near 93.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Mercedes TX
26.16°N 97.93°W
26.16°N 97.93°W
5:30 pm CDT Oct 7, 2026
5pm CDT Oct 7, 2026-6pm CDT Oct 14, 2026


