San Antonio weather live forecast

Today's maximum temperature in San Antonio is expected to be 29°C. Select a day from the live weather forecast for San Antonio, Texas, USA for more weather parameters.

Thursday
19th Mar
29

12

11

8
Friday
20th Mar
33

12

12

8
Saturday
21st Mar
34

13

12

8
Sunday
22nd Mar
34

15

12

8
Monday
23rd Mar
33

14

8

8

5-day weather forecast updated at 04:00 on Thursday 19th March 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 Thursday 19th March 2026

Expect clear skies in San Antonio, Texas with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south.

29
°C maximum temperature
12
°C minimum temperature
clear skies
11
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from S

San Antonio weather for Friday 20th March 2026

Expect clear skies in San Antonio, Texas with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.

33
°C maximum temperature
12
°C minimum temperature
clear skies
12
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from S

San Antonio weather for Saturday 21st March 2026

Expect clear skies in San Antonio, Texas with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south.

34
°C maximum temperature
13
°C minimum temperature
clear skies
12
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
17
kph wind from S

San Antonio weather for Sunday 22nd March 2026

34
°C maximum temperature
15
°C minimum temperature
clear skies
12
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
19
kph wind from S

San Antonio weather for Monday 23rd March 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the east.