Texas · NWS BRO office

San Juan, TX weather

It is 75°F and clear at McAllen, Miller International Airport as of Oct 28, 4:15 AM CDT. Overnight: Mostly Cloudy, low near 71°F, 6% chance of precipitation. Forecast from the National Weather Service, issued Oct 28, 4:18 AM CDT.

Updated Oct 28, 4:23 AM CDT (snapshot)

Current conditions

Temperature

75°F

Clear · feels like 77°F

Wind

ESE 5 mph

Humidity 89% · dew point 72°F

Pressure · visibility

30.05 inHg

Visibility 10 mi

Observed at McAllen, Miller International Airport (KMFE), Oct 28, 4:15 AM CDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the San Juan forecast zone right now.

Around the NWS BRO forecast area

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

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 San Juan (local time)
TimeTempForecastPrecip. chanceWind
Wed 6 AM72°FMostly Sunny6%E 2 mph
Wed 7 AM71°FMostly Sunny2%E 2 mph
Wed 8 AM71°FPartly Sunny2%E 2 mph
Wed 9 AM74°FPartly Sunny2%E 2 mph
Wed 10 AM78°FMostly Sunny2%SE 3 mph
Wed 11 AM82°FMostly Sunny2%SE 6 mph
Wed 12 PM85°FMostly Sunny4%SE 7 mph
Wed 1 PM87°FMostly Sunny6%ESE 7 mph
Wed 2 PM88°FMostly Sunny6%ESE 7 mph
Wed 3 PM89°FMostly Sunny8%ESE 8 mph
Wed 4 PM88°FPartly Sunny8%E 8 mph
Wed 5 PM87°FMostly Sunny9%E 9 mph
Wed 6 PM85°FMostly Cloudy10%E 9 mph
Wed 7 PM82°FMostly Cloudy8%E 9 mph
Wed 8 PM80°FMostly Cloudy5%E 8 mph
Wed 9 PM78°FMostly Cloudy5%ESE 8 mph
Wed 10 PM78°FPartly Cloudy5%ESE 7 mph
Wed 11 PM77°FPartly Cloudy5%ESE 7 mph
Thu 12 AM76°FMostly Cloudy6%ESE 6 mph
Thu 1 AM75°FMostly Cloudy5%ESE 6 mph
Thu 2 AM75°FMostly Cloudy5%ESE 6 mph
Thu 3 AM74°FPartly Cloudy6%E 5 mph
Thu 4 AM74°FPartly Cloudy6%E 5 mph
Thu 5 AM73°FMostly Cloudy5%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 San Juan can differ.

7-day forecast

Overnight

Low 71°F

Mostly cloudy, with a low around 71. East southeast wind around 2 mph.

Wednesday

High 90°F·Low 72°F

Mostly sunny, with a high near 90. East southeast wind 2 to 9 mph.

Wednesday Night: Mostly cloudy, with a low around 72. East southeast wind 5 to 9 mph.

Thursday

High 88°F·Low 70°F

Mostly sunny, with a high near 88. East southeast wind 5 to 12 mph, with gusts as high as 22 mph.

Thursday Night: Mostly cloudy, with a low around 70. East southeast wind 6 to 12 mph, with gusts as high as 23 mph.

Friday

High 88°F·Low 70°F

Mostly sunny, with a high near 88. Southeast wind 6 to 10 mph.

Friday Night: Mostly clear, with a low around 70. Southeast wind 3 to 8 mph.

Saturday

High 91°F·Low 71°F

Sunny, with a high near 91. Southeast wind 2 to 6 mph.

Saturday Night: Mostly clear, with a low around 71. East southeast wind 2 to 8 mph.

Sunday

High 92°F·Low 72°F

Mostly sunny, with a high near 92. Southeast wind 2 to 10 mph.

Sunday Night: Partly cloudy, with a low around 72. Southeast wind around 10 mph, with gusts as high as 21 mph.

Monday

High 93°F·Low 73°F

Mostly sunny, with a high near 93.

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

Tuesday

High 90°F

Mostly sunny, with a high near 90.

Nearby cities

Larger cities in the area

Other cities in Hidalgo County

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

About this forecast

Forecast office
San Juan is served by the National Weather Service BRO forecast office, forecast zone TXZ253, county zone TXC215.
Location used
The Census Bureau's internal point for San Juan (26.1894, -98.1518), in Hidalgo County. Population: 37,341 (2024 estimate), number 103 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/26.1894,-98.1518 (forecast issued Oct 28, 4:18 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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