Weather Forecast for San Antonio (US)

Texas, United States of America

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Current Weather - San Antonio (US): 30°C

Texas, United States of America

Clear

Feels like 37°C

Wind

4 km/h NNW

Humidity

63%

Pressure

1012 mb

UV Index

0

Visibility

16 km

Sunny

Sunny

Thursday, July 23, 2026

High

39°C

Low

27°C

Rain Chance

4%

Hourly Forecast

Sunny 31°C
10:00
Sunny 36°C
11:00
Sunny 37°C
12:00
Sunny 37°C
13:00
Sunny 38°C
14:00
Sunny 39°C
15:00
Sunny 39°C
16:00
Sunny 38°C
17:00
Sunny 38°C
18:00
Sunny 36°C
19:00
Sunny 34°C
20:00
Clear 32°C
21:00
Partly Cloudy 30°C
22:00
Cloudy 29°C
23:00
Jul 24

Day Statistics

Maximum Wind

32 km/h

Humidity

59%

Precipitation

0 mm

UV Index

12

Visibility

10 km

Rain Chance

4%

Snow Chance

0%

Sun & Moon

Sunrise

06:48 AM

Sunset

08:32 PM

Moonrise

04:20 PM

Moonset

01:50 AM

Moon Phase

Waxing Gibbous

Moon Illumination

74%

Air Quality

PM2.5

13.6

μg/m³

PM10

15

μg/m³

NO₂

7.8

μg/m³

O₃

102.3

μg/m³

SO₂

2.2

μg/m³

CO

154.9

μg/m³

US EPA Index: 1 GB DEFRA Index: 2

Weather Alerts

Heat Advisory issued July 22 at 9:07AM CDT until July 23 at 8:00PM CDT by NWS Austin/San Antonio TX

Kerr; Bandera; Gillespie; Kendall; Blanco; Uvalde; Zavala; Dimmit Jul 22, 09:07 AM - Jul 23, 05:00 AM
Severity: Moderate Urgency: Expected

* WHAT...Heat index values up to 112 expected. * WHERE...Bandera, Blanco, Dimmit, Gillespie, Kendall, Kerr, Uvalde, and Zavala Counties. * WHEN...Until 8 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight temperatures will stay in the 80s prompting a heat advisory to remain in effect through the overnight hours.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Event: Heat Advisory Certainty: Likely Category: Met