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.

Wednesday
17th Jun
35

23

10

11
Thursday
18th Jun
37

25

6

11
Friday
19th Jun
35

26

7

6
Saturday
20th Jun
32

23

6

9
Sunday
21st Jun
35

23

7

10

5-day weather forecast updated at 04:00 on Wednesday 17th June 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 Wednesday 17th June 2026

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 35°C, 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 15 kph from the south.

35
°C maximum temperature
23
°C minimum temperature
scattered clouds
10
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
H
high heat & humidity
15
kph wind from S

San Antonio weather for Thursday 18th June 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 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south-east.

37
°C maximum temperature
25
°C minimum temperature
broken clouds
6
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
VH
very high heat & humidity
22
kph wind from SE

San Antonio weather for Friday 19th June 2026

Expect broken clouds in San Antonio, Texas with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-east.

35
°C maximum temperature
26
°C minimum temperature
broken clouds
7
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
18
kph wind from SE

San Antonio weather for Saturday 20th June 2026

Expect isolated thunderstorms in San Antonio, Texas with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 65% chance of some rain and a moderate breeze of 20 kph from the south-east.

32
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
9
UV index (Very High)
65
% chance of some rain
<20
mm of rainfall expected
H
high heat & humidity
20
kph wind from SE

San Antonio weather for Sunday 21st June 2026

Expect broken clouds in San Antonio, Texas with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the south.