Harlingen, TX Weather Forecast
Local 7-day forecast
Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Harlingen, TX in one place.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 100. Heat index values as high as 109. Southeast wind 2 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Harlingen, 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: Aug 27, 2026 8:28 PM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Harlingen, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 27, 2026 8:28 PM CDT
- Forecast office
- BRO
- Source
- NOAA / NWS
Daily Outlook
This Week in Harlingen
Saturday looks like the warmest upcoming period in Harlingen at 100 degrees F.
Saturday Night is the coolest period ahead with temperatures near 78 degrees F.
The strongest winds are forecast for Monday at about 7 to 16 mph SE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 8:28 PM CDT
- Coverage
- 6 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 sourceExtended Forecast
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. Southeast wind 3 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Sunny, with a high near 100. Southeast wind 3 to 14 mph, with gusts as high as 23 mph.
Mostly clear, with a low around 79. Southeast wind 8 to 15 mph, with gusts as high as 24 mph.
Sunny, with a high near 100. Southeast wind 7 to 16 mph, with gusts as high as 28 mph.
Mostly clear, with a low around 79. Southeast wind 7 to 16 mph, with gusts as high as 26 mph.
Sunny, with a high near 100. Southeast wind 6 to 15 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 78. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 99. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. Chance of precipitation is 20%.
Sunny, with a high near 99.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Sunny then Slight Chance Showers And Thunderstorms
|
100°F |
2 to 13 mph
SE
|
|
Saturday Night
Aug 29
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
78°F |
3 to 13 mph
SE
|
|
Sunday
Aug 30
|
Sunny
|
100°F |
3 to 14 mph
SE
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
79°F |
8 to 15 mph
SE
|
|
Monday
Aug 31
|
Sunny
|
100°F |
7 to 16 mph
SE
|
|
Monday Night
Aug 31
|
Mostly Clear
|
79°F |
7 to 16 mph
SE
|
|
Tuesday
Sep 1
|
Sunny
|
100°F |
6 to 15 mph
SE
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
78°F |
5 to 15 mph
SE
|
|
Wednesday
Sep 2
|
Sunny then Slight Chance Showers And Thunderstorms
|
99°F |
5 to 13 mph
SE
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
78°F |
3 to 13 mph
SE
|
|
Thursday
Sep 3
|
Sunny
|
99°F |
2 to 13 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harlingen.
