Mertens, TX Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Mertens, TX in one place.
Mostly sunny. High near 96, with temperatures falling to around 94 in the afternoon. Heat index values as high as 102. South southeast wind 10 to 15 mph.
Local Weather Overview
This forecast page for Mertens, 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: Jul 23, 2026 7:05 PM CDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Mertens, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 7:05 PM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Mertens
Wednesday looks like the warmest upcoming period in Mertens at 102 degrees F.
Friday Night is the coolest period ahead with temperatures near 77 degrees F.
The strongest winds are forecast for Friday at about 10 to 15 mph SSE.
The forecast from Jul 24 through Jul 29 stays mostly dry.
Forecast Details
- Last updated
- Jul 23, 2026 7:05 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- FWD
- Radar station
- KFWS
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear. Low around 77, with temperatures rising to around 79 overnight. Heat index values as high as 103. South wind 10 to 15 mph.
Sunny, with a high near 98. South southwest wind around 10 mph.
Mostly clear. Low around 78, with temperatures rising to around 80 overnight. South wind 5 to 10 mph.
Sunny, with a high near 99. South southwest wind around 5 mph.
Clear, with a low around 79. South wind 5 to 10 mph.
Sunny, with a high near 100. South southwest wind 5 to 10 mph.
Mostly clear, with a low around 79.
Sunny, with a high near 101.
Mostly clear, with a low around 79.
Sunny, with a high near 102.
Mostly clear, with a low around 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Mostly Sunny
|
96°F |
10 to 15 mph
SSE
|
|
Friday Night
Jul 24
|
Mostly Clear
|
77°F |
10 to 15 mph
S
|
|
Saturday
Jul 25
|
Sunny
|
98°F |
10 mph
SSW
|
|
Saturday Night
Jul 25
|
Mostly Clear
|
78°F |
5 to 10 mph
S
|
|
Sunday
Jul 26
|
Sunny
|
99°F |
5 mph
SSW
|
|
Sunday Night
Jul 26
|
Clear
|
79°F |
5 to 10 mph
S
|
|
Monday
Jul 27
|
Sunny
|
100°F |
5 to 10 mph
SSW
|
|
Monday Night
Jul 27
|
Mostly Clear
|
79°F |
5 to 10 mph
S
|
|
Tuesday
Jul 28
|
Sunny
|
101°F |
5 mph
SSW
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
79°F |
5 to 10 mph
S
|
|
Wednesday
Jul 29
|
Sunny
|
102°F |
5 mph
S
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
80°F |
5 to 10 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mertens.