San Antonio weather live forecast

Today's maximum temperature in San Antonio is expected to be 38°C. Select a day from the live weather forecast for San Antonio, Texas, USA for more weather parameters.

Thursday
10th Sep
38

25

8

9
Friday
11th Sep
38

25

9

9
Saturday
12th Sep
39

25

8

9
Sunday
13th Sep
38

25

7

9
Monday
14th Sep
39

24

7

9

5-day weather forecast updated at 04:00 on Thursday 10th September 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 10th September 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 38°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.

38
°C maximum temperature
25
°C minimum temperature
scattered clouds
8
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
VH
very high heat & humidity
16
kph wind from SE

San Antonio weather for Friday 11th September 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 38°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-east.

38
°C maximum temperature
25
°C minimum temperature
scattered clouds
9
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
VH
very high heat & humidity
20
kph wind from SE

San Antonio weather for Saturday 12th September 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 39°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south-east.

39
°C maximum temperature
25
°C minimum temperature
scattered clouds
8
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
VH
very high heat & humidity
22
kph wind from SE

San Antonio weather for Sunday 13th September 2026

Expect broken clouds in San Antonio, Texas with a maximum temperature of 38°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-east.

38
°C maximum temperature
25
°C minimum temperature
broken clouds
7
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
VH
very high heat & humidity
21
kph wind from SE

San Antonio weather for Monday 14th September 2026

Expect broken clouds in San Antonio, Texas with a maximum temperature of 39°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-east.