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.

Partly Cloudy

90°F

32°C

Humidity 47%
Wind Speed NE 10 mph
Barometer 30.04 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 3 Oct 12:55 pm CDT
Extended Forecast for

Mercedes TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 93. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 72. East northeast wind 5 to 10 mph becoming light and variable.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 3pm. Mostly sunny, with a high near 92. North northwest wind 6 to 10 mph becoming east northeast in the afternoon.

    High: 92 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 72. East northeast wind 5 to 10 mph becoming light and variable in the evening.

    Low: 72 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Light and variable wind becoming east northeast 5 to 8 mph in the morning.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 74. East wind 5 to 10 mph becoming light southeast after midnight.

    Low: 74 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: A 20 percent chance of showers after 1pm. Patchy fog before 8am. Otherwise, sunny, with a high near 95. Light east southeast wind becoming east 5 to 9 mph in the morning.

    High: 95 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. East wind 5 to 10 mph becoming light east southeast after midnight.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Light east northeast wind becoming east 5 to 10 mph in the morning.

    High: 94 °F

    Sunny then
    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 93. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 72. East northeast wind 5 to 10 mph becoming light and variable.
Saturday
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 3pm. Mostly sunny, with a high near 92. North northwest wind 6 to 10 mph becoming east northeast in the afternoon.
Saturday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 72. 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 94. Light and variable wind becoming east northeast 5 to 8 mph in the morning.
Sunday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 74. East wind 5 to 10 mph becoming light southeast after midnight.
Monday
A 20 percent chance of showers after 1pm. Patchy fog before 8am. Otherwise, sunny, with a high near 95. Light east southeast wind becoming east 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 74. East wind 5 to 10 mph becoming light east southeast after midnight.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Light east northeast wind becoming east 5 to 10 mph in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. East wind 5 to 10 mph becoming light east northeast.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. North northeast wind 6 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
A 20 percent chance of showers. Mostly clear, with a low around 74.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mercedes TX
 26.14°N 97.93°W
Last Update:
1:00 pm CDT Oct 3, 2025
Forecast Valid:
1pm CDT Oct 3, 2025-6pm CDT Oct 9, 2025
 
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