San Juan, TX Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for San Juan, TX in one place.
A slight chance of rain showers between 10am and 11am, then a chance of showers and thunderstorms between 1pm and 3pm. Sunny, with a high near 96. Heat index values as high as 105. Southeast wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for San Juan, 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 9, 2026 1:20 PM CDT.
The active forecast window currently covers Jul 10 to Jul 15, 2026 for San Juan, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 10 to Jul 15, 2026
- Latest sync
- Jul 9, 2026 1:20 PM CDT
- Forecast office
- BRO
- Source
- NOAA / NWS
Daily Outlook
This Week in San Juan
Saturday looks like the warmest upcoming period in San Juan at 98 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 77 degrees F.
The strongest winds are forecast for Friday at about 6 to 15 mph SE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 9, 2026 1:20 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
Partly cloudy, with a low around 79. Southeast wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Mostly sunny, with a high near 98. Southeast wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Partly cloudy, with a low around 79. Southeast wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. Southeast wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 79. Southeast wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 98. Southeast wind 6 to 15 mph, with gusts as high as 24 mph.
Partly cloudy, with a low around 78. Southeast wind 6 to 15 mph, with gusts as high as 24 mph.
Mostly sunny, with a high near 98. Southeast wind 6 to 14 mph, with gusts as high as 21 mph.
Partly cloudy, with a low around 78.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 10
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
96°F |
6 to 15 mph
SE
|
|
Friday Night
Jul 10
|
Partly Cloudy
|
79°F |
7 to 15 mph
SE
|
|
Saturday
Jul 11
|
Mostly Sunny
|
98°F |
7 to 15 mph
SE
|
|
Saturday Night
Jul 11
|
Partly Cloudy
|
79°F |
6 to 15 mph
SE
|
|
Sunday
Jul 12
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
98°F |
6 to 15 mph
SE
|
|
Sunday Night
Jul 12
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
79°F |
6 to 15 mph
SE
|
|
Monday
Jul 13
|
Mostly Sunny
|
98°F |
6 to 15 mph
SE
|
|
Monday Night
Jul 13
|
Partly Cloudy
|
78°F |
6 to 15 mph
SE
|
|
Tuesday
Jul 14
|
Mostly Sunny
|
98°F |
6 to 14 mph
SE
|
|
Tuesday Night
Jul 14
|
Partly Cloudy
|
78°F |
6 to 15 mph
SE
|
|
Wednesday
Jul 15
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
96°F |
6 to 13 mph
SE
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
77°F |
5 to 14 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around San Juan.