San Antonio weather live forecast

Today's maximum temperature in San Antonio is expected to be 35°C. Select a day from the live weather forecast for San Antonio, Texas, USA for more weather parameters.

Saturday
21st Mar
35

14

12

8
Sunday
22nd Mar
34

15

11

8
Monday
23rd Mar
32

17

10

8
Tuesday
24th Mar
32

15

7

8
Wednesday
25th Mar
33

17

9

10

5-day weather forecast updated at 04:00 on Sunday 22nd 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 Saturday 21st March 2026

Expect clear skies in San Antonio, Texas with a maximum temperature of 35°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 moderate breeze of 20 kph from the south.

35
°C maximum temperature
14
°C minimum temperature
clear skies
12
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
20
kph wind from S

San Antonio weather for Sunday 22nd 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 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south.

34
°C maximum temperature
15
°C minimum temperature
clear skies
11
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
20
kph wind from S

San Antonio weather for Monday 23rd March 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-east.

32
°C maximum temperature
17
°C minimum temperature
scattered clouds
10
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from SE

San Antonio weather for Tuesday 24th March 2026

Expect broken clouds in San Antonio, Texas with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.

32
°C maximum temperature
15
°C minimum temperature
broken clouds
7
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from S

San Antonio weather for Wednesday 25th March 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-east.