Mercedes, TX Weather Forecast

Local 7-day forecast

91°
F

Partly Sunny then Slight Chance Showers And Thunderstorms

Track current conditions, temperature changes, wind, and the full daily outlook for Mercedes, TX in one place.

Tuesday, May 26, 2026
Wind: 5 to 14 mph SE
Tuesday

A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Southeast wind 5 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

Local 7-day forecast

Local Weather Overview

This forecast page for Mercedes, TX is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 24, 2026 12:03 PM CDT.

The active forecast window currently covers May 26 to May 30, 2026 for Mercedes, TX.

Page Snapshot

Page focus
city weather
Forecast window
May 26 to May 30, 2026
Latest sync
May 24, 2026 12:03 PM CDT
Forecast office
BRO
Source
NOAA / NWS
Next High
91°F
Tuesday
Next Low
78°F
Tuesday Night
Rain Outlook
4
Periods mentioning precipitation
Windiest
15 mph
Wednesday

Daily Outlook

Today
May 26
Partly Sunny then Slight Chance Showers And Thunderstorms
91 °F
/ 78°F
Wind 5 to 14 mph
Wed
May 27
Chance Showers And Thunderstorms
91 °F
/ 77°F
Wind 15 mph
Thu
May 28
Mostly Sunny
94 °F
/ 76°F
Wind 7 to 10 mph
Fri
May 29
Mostly Sunny
96 °F
/ 77°F
Wind 5 to 12 mph
Sat
May 30
Mostly Sunny
95 °F
/ 77°F
Wind 6 to 12 mph

This Week in Mercedes

Friday looks like the warmest upcoming period in Mercedes at 96 degrees F.

Thursday Night is the coolest period ahead with temperatures near 76 degrees F.

The strongest winds are forecast for Wednesday at about 15 mph SSE.

Precipitation is mentioned in 4 upcoming forecast periods.

Forecast Details

Last updated
May 24, 2026 12:03 PM CDT
Coverage
5 days
Time zone
America/Chicago
Forecast office
BRO
Radar station
KBRO

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Tuesday Night
May 26
78°F
Slight Chance Showers And Thunderstorms
14 mph SE

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 78. Southeast wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

Wednesday
May 27
91°F
Chance Showers And Thunderstorms
15 mph SSE

A chance of showers and thunderstorms. Mostly cloudy, with a high near 91. South southeast wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

Wednesday Night
May 27
77°F
Chance Showers And Thunderstorms
8 to 15 mph SE

A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. Southeast wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

Thursday
May 28
94°F
Mostly Sunny
7 to 10 mph SE

Mostly sunny, with a high near 94. Southeast wind 7 to 10 mph.

Thursday Night
May 28
76°F
Partly Cloudy
5 to 12 mph SE

Partly cloudy, with a low around 76. Southeast wind 5 to 12 mph.

Friday
May 29
96°F
Mostly Sunny
5 to 12 mph SE

Mostly sunny, with a high near 96. Southeast wind 5 to 12 mph.

Friday Night
May 29
77°F
Partly Cloudy
7 to 13 mph SE

Partly cloudy, with a low around 77.

Saturday
May 30
95°F
Mostly Sunny
6 to 12 mph SE

Mostly sunny, with a high near 95.

Saturday Night
May 30
77°F
Partly Cloudy
6 to 13 mph SE

Partly cloudy, with a low around 77.

Detailed Forecast

Period Conditions Temp Wind
Tuesday
May 26
Partly Sunny then Slight Chance Showers And Thunderstorms
91°F
5 to 14 mph
SE
Tuesday Night
May 26
Slight Chance Showers And Thunderstorms
78°F
14 mph
SE
Wednesday
May 27
Chance Showers And Thunderstorms
91°F
15 mph
SSE
Wednesday Night
May 27
Chance Showers And Thunderstorms
77°F
8 to 15 mph
SE
Thursday
May 28
Mostly Sunny
94°F
7 to 10 mph
SE
Thursday Night
May 28
Partly Cloudy
76°F
5 to 12 mph
SE
Friday
May 29
Mostly Sunny
96°F
5 to 12 mph
SE
Friday Night
May 29
Partly Cloudy
77°F
7 to 13 mph
SE
Saturday
May 30
Mostly Sunny
95°F
6 to 12 mph
SE
Saturday Night
May 30
Partly Cloudy
77°F
6 to 13 mph
SE
Mercedes historic downtown
Mercedes historic downtown image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.