Texas · NWS BRO office

Harlingen, TX weather

It is 73°F and mostly cloudy at Mid Valley Airport as of Oct 28, 3:55 AM CDT. Overnight: Partly Cloudy, low near 70°F, 5% chance of precipitation. Forecast from the National Weather Service, issued Oct 28, 4:15 AM CDT.

Updated Oct 28, 4:18 AM CDT (snapshot)

Current conditions

Temperature

73°F

Mostly Cloudy · feels like 74°F

Wind

Calm

Humidity 92% · dew point 70°F

Pressure · visibility

30.05 inHg

Visibility 10 mi

Observed at Mid Valley Airport (KTXW), Oct 28, 3:55 AM CDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Harlingen forecast zone right now.

Around the NWS BRO forecast area

No active alerts in zones served by the BRO office near Harlingen.

From the alert snapshot of Oct 28, 2026, 5:12 AM EDT. Texas has 2 active alerts: see them all.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Harlingen (local time)
TimeTempForecastPrecip. chanceWind
Wed 6 AM71°FMostly Sunny4%ESE 2 mph
Wed 7 AM70°FMostly Sunny3%ESE 2 mph
Wed 8 AM71°FMostly Sunny2%E 1 mph
Wed 9 AM74°FPartly Sunny2%ESE 1 mph
Wed 10 AM80°FMostly Sunny2%SE 2 mph
Wed 11 AM83°FMostly Sunny4%SE 6 mph
Wed 12 PM86°FMostly Sunny5%SE 6 mph
Wed 1 PM86°FMostly Sunny12%ESE 7 mph
Wed 2 PM87°FPartly Sunny12%ESE 8 mph
Wed 3 PM88°FSlight Chance Showers And Thunderstorms15%E 9 mph
Wed 4 PM86°FSlight Chance Showers And Thunderstorms15%E 10 mph
Wed 5 PM85°FPartly Sunny11%E 12 mph
Wed 6 PM84°FMostly Cloudy9%E 12 mph
Wed 7 PM80°FPartly Cloudy6%E 10 mph
Wed 8 PM79°FMostly Cloudy4%ESE 8 mph
Wed 9 PM78°FMostly Cloudy4%ESE 8 mph
Wed 10 PM77°FMostly Cloudy4%ESE 7 mph
Wed 11 PM77°FPartly Cloudy4%ESE 7 mph
Thu 12 AM76°FMostly Cloudy5%ESE 6 mph
Thu 1 AM76°FMostly Cloudy5%ESE 6 mph
Thu 2 AM75°FMostly Cloudy4%ESE 6 mph
Thu 3 AM74°FMostly Cloudy4%ESE 5 mph
Thu 4 AM74°FMostly Cloudy4%ESE 5 mph
Thu 5 AM73°FMostly Cloudy4%E 5 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Harlingen can differ.

7-day forecast

Overnight

Low 70°F

Partly cloudy, with a low around 70. East southeast wind around 2 mph.

Wednesday

High 88°F·Low 71°F

A slight chance of showers and thunderstorms between 3pm and 5pm. Mostly sunny, with a high near 88. East southeast wind 1 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Wednesday Night: Mostly cloudy, with a low around 71. East southeast wind 5 to 12 mph.

Thursday

High 87°F·Low 69°F

Mostly sunny, with a high near 87. East wind 5 to 13 mph, with gusts as high as 23 mph.

Thursday Night: Mostly cloudy, with a low around 69. East southeast wind 6 to 13 mph, with gusts as high as 22 mph.

Friday

High 88°F·Low 70°F

Mostly sunny, with a high near 88. Southeast wind 5 to 9 mph.

Friday Night: Mostly clear, with a low around 70. Southeast wind 2 to 9 mph.

Saturday

High 90°F·Low 70°F

Sunny, with a high near 90. Southeast wind 2 to 8 mph.

Saturday Night: Mostly clear, with a low around 70. East southeast wind 2 to 10 mph.

Sunday

High 90°F·Low 71°F

Mostly sunny, with a high near 90. Southeast wind 2 to 12 mph, with gusts as high as 21 mph.

Sunday Night: Partly cloudy, with a low around 71. Southeast wind 6 to 12 mph.

Monday

High 91°F·Low 73°F

Mostly sunny, with a high near 91.

Monday Night: Mostly clear, with a low around 73.

Tuesday

High 89°F

Mostly sunny, with a high near 89.

Nearby cities

Larger cities in the area

Other cities in Cameron County

See every city we cover in Texas, or check all active alerts.

About this forecast

Forecast office
Harlingen is served by the National Weather Service BRO forecast office, forecast zone TXZ255, county zone TXC061.
Location used
The Census Bureau's internal point for Harlingen (26.1912, -97.6974), in Cameron County. Population: 72,234 (2024 estimate), number 57 of the 154 Texas cities on this site.
Radar
Nearest NWS radar: KBRO. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/26.1912,-97.6974 (forecast issued Oct 28, 4:15 AM CDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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