San Antonio weather live forecast

Today's maximum temperature in San Antonio is expected to be 25°C. Select a day from the live weather forecast for San Antonio, Texas, USA for more weather parameters.

Thursday
18th Dec
25

12

7

4
Friday
19th Dec
21

8

10

4
Saturday
20th Dec
23

9

8

2
Sunday
21st Dec
25

11

7

2
Monday
22nd Dec
25

15

4

3

5-day weather forecast updated at 04:01 on Thursday 18th December 2025 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 18th December 2025

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.

25
°C maximum temperature
12
°C minimum temperature
scattered clouds
7
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
25
°C wind chill
17
kph wind from SW

San Antonio weather for Friday 19th December 2025

Expect clear skies in San Antonio, Texas with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south.

21
°C maximum temperature
8
°C minimum temperature
clear skies
10
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
21
°C wind chill
12
kph wind from S

San Antonio weather for Saturday 20th December 2025

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 23°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

23
°C maximum temperature
9
°C minimum temperature
scattered clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from SW

San Antonio weather for Sunday 21st December 2025

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 25°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.

25
°C maximum temperature
11
°C minimum temperature
scattered clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
25
°C wind chill
10
kph wind from E

San Antonio weather for Monday 22nd December 2025

Expect broken clouds in San Antonio, Texas with a maximum temperature of 25°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-east.