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WeatherLive › Texas › San Juan

San Juan, TX Weather (78589)

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherSan Juan · 5:10 PM CDT
108° | 81°
104°F
Feels like 101°
Sunny
WindSE 17 mph · Gusts 26 mph
Precip4% · –
Humidity32% · Dew point 68°
UV index11 Very high
Air Quality32 Good
Pressure29.77 inHg
Visibility6 mi
Sunrise / Sunset7:13 AM · 7:51 PM · 12h 38m

Weather map — San Juan

Full radar →
Now
104°
0%
17 mph
18:00
100°
1%
20 mph
19:00
95°
1%
21 mph
20:00
90°
2%
20 mph
21:00
87°
8%
20 mph
22:00
85°
17%
18 mph
23:00
84°
7%
18 mph
00:00
83°
21%
17 mph
01:00
83°
18%
17 mph
02:00
83°
19%
16 mph
03:00
83°
16%
15 mph
04:00
82°
19%
14 mph
05:00
82°
10%
14 mph
06:00
82°
18%
12 mph
07:00
81°
20%
11 mph
08:00
82°
20%
11 mph
09:00
85°
15%
14 mph
10:00
89°
12%
15 mph
11:00
93°
7%
14 mph
12:00
96°
10%
13 mph
13:00
99°
9%
13 mph
14:00
101°
8%
13 mph
15:00
103°
9%
14 mph
16:00
103°
1%
18 mph

Today · Wed 9/2

High 108°
4% / –

Sunny. Winds SE at 21 mph.

Tonight · Wed 9/2

Low 81°
8% / –

Partly cloudy. Winds SE at 20 mph.

Tomorrow · Thu 9/3

103° | 81°
10% / –

Mostly cloudy. Winds SE at 20 mph.

7-day trend

San Juan · temperature + precipitation

10-day forecast

Updated 5:10 PM

Details & indices

Wind
17 mph SE
Gusts 26 mph
Humidity
32%
Dew point 68°
Pressure
29.77 inHg
Falling
UV index
11 — Very high
High today
Air Quality
Good
AQI 32 · US EPA
Allergy
None detected
—
Visibility
6 mi
Clear view
Allergy — San Juan

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
None
Ragweed
None

Sun & moon

Sunrise7:13 AM
Sunset7:51 PM
Length of day12h 38m
Moonrise11:20 PM
Moonset12:33 PM
Moon phase🌗 Last Quarter · 66%
Next full moonSep 26 Harvest Moon
Latitude26.1892°N
Longitude-98.1553°E

Water temps nearby

View all →
South Padre Island (61 mi)87°
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
Houston
Showers
85°
San Antonio
Partly cloudy
102°
Dallas
Partly cloudy
99°
Fort Worth
Sunny
105°
Austin
Partly cloudy
102°
El Paso
Sunny
99°
Data sources · Wednesday, September 2
Where the San Juan forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 26.1892°N, -98.1553°.
NBM + global weather models
Updated: 5:10 PM
Weather in San Juan
Over the next 10 days San Juan tops out around 108° (Wednesday) and dips to 80° on the coolest night (Sunday). About 0.53 in of precipitation is expected in total; the most likely wet day is Saturday (77% chance). Wind is the one to watch: gusts to 32 mph around Wednesday. No watches or warnings are active for the area right now. Right now San Juan is running about 23° warmer than Kingsville. Longer view: continental plains — big swings and a spring severe-storm season.
San Juan, TX · Elev 108 ft · 26.19°N, 98.16°W · Texas · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 5:10 PM