San Antonio weather live forecast

Today's maximum temperature in San Antonio is expected to be 37°C. Select a day from the live weather forecast for San Antonio, Texas, USA for more weather parameters.

Monday
20th Jul
37

25

12

11
Tuesday
21st Jul
37

23

11

11
Wednesday
22nd Jul
39

24

14

11
Thursday
23rd Jul
39

27

10

11
Friday
24th Jul
37

26

3

11

5-day weather forecast updated at 04:00 on Monday 20th July 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 Monday 20th July 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 37°C, very high levels of heat & humidity, maximum UV of 11 (Extreme) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.

37
°C maximum temperature
25
°C minimum temperature
scattered clouds
12
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
VH
very high heat & humidity
16
kph wind from SE

San Antonio weather for Tuesday 21st July 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 37°C, very high levels of heat & humidity, maximum UV of 11 (Extreme) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

37
°C maximum temperature
23
°C minimum temperature
scattered clouds
11
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
VH
very high heat & humidity
11
kph wind from S

San Antonio weather for Wednesday 22nd July 2026

Expect clear skies in San Antonio, Texas with a maximum temperature of 39°C, very high levels of heat & humidity, maximum UV of 11 (Extreme) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.

39
°C maximum temperature
24
°C minimum temperature
clear skies
14
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
VH
very high heat & humidity
12
kph wind from SE

San Antonio weather for Thursday 23rd July 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 39°C, very high levels of heat & humidity, maximum UV of 11 (Extreme) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the east.

39
°C maximum temperature
27
°C minimum temperature
scattered clouds
10
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
VH
very high heat & humidity
18
kph wind from E

San Antonio weather for Friday 24th July 2026

Expect broken clouds in San Antonio, Texas with a maximum temperature of 37°C, very high levels of heat & humidity, maximum UV of 11 (Extreme) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-east.