San Antonio weather live forecast

Today's maximum temperature in San Antonio is expected to be 21°C. Select a day from the live weather forecast for San Antonio, Texas, USA for more weather parameters.

Saturday
17th Oct
21

12

9

7
Sunday
18th Oct
23

11

7

7
Monday
19th Oct
25

12

11

6
Tuesday
20th Oct
28

14

11

7
Wednesday
21st Oct
29

15

11

7

5-day weather forecast updated at 04:00 on Saturday 17th October 2026 GMT

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The 5-day weather forecast for Texas (San Antonio) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

San Antonio weather forecast by day

Below are the detailed weather forecasts for San Antonio for the next 5 days.

San Antonio weather for Saturday 17th October 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 21°C, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north.

21
°C maximum temperature
12
°C minimum temperature
scattered clouds
9
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
24
kph wind from N

San Antonio weather for Sunday 18th October 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 23°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the east.

23
°C maximum temperature
11
°C minimum temperature
scattered clouds
7
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
23
°C wind chill
12
kph wind from E

San Antonio weather for Monday 19th October 2026

Expect clear skies in San Antonio, Texas with a maximum temperature of 25°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.

25
°C maximum temperature
12
°C minimum temperature
clear skies
11
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from E

San Antonio weather for Tuesday 20th October 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the east.

28
°C maximum temperature
14
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
12
kph wind from E

San Antonio weather for Wednesday 21st October 2026

Expect clear skies in San Antonio, Texas with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.