San Antonio weather live forecast

Today's maximum temperature in San Antonio is expected to be 14°C. Select a day from the live weather forecast for San Antonio, Texas, USA for more weather parameters.

Monday
20th Apr
14

12

0

2
Tuesday
21st Apr
22

15

0

3
Wednesday
22nd Apr
27

19

4

7
Thursday
23rd Apr
29

19

4

6
Friday
24th Apr
31

20

6

6

5-day weather forecast updated at 04:00 on Tuesday 21st April 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 April 2026

Expect cloudy with some rain in San Antonio, Texas with a maximum temperature of 14°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 98% chance of some rain and a moderate breeze of 20 kph from the north-east.

14
°C maximum temperature
12
°C minimum temperature
cloudy with some rain
0
hours of sunshine
2
UV index (Low)
98
% chance of some rain
<40
mm of rainfall expected
0
no heat & humidity
20
kph wind from NE

San Antonio weather for Tuesday 21st April 2026

Expect isolated thunderstorms in San Antonio, Texas with a maximum temperature of 22°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 66% chance of some rain and a gentle breeze of 16 kph from the east.

22
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
3
UV index (Moderate)
66
% chance of some rain
<10
mm of rainfall expected
22
°C wind chill
16
kph wind from E

San Antonio weather for Wednesday 22nd April 2026

Expect isolated thunderstorms in San Antonio, Texas with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 53% chance of some rain and a gentle breeze of 18 kph from the south-east.

27
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
7
UV index (High)
53
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
18
kph wind from SE

San Antonio weather for Thursday 23rd April 2026

Expect broken clouds in San Antonio, Texas with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south.

29
°C maximum temperature
19
°C minimum temperature
broken clouds
4
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
20
kph wind from S

San Antonio weather for Friday 24th April 2026

Expect broken clouds in San Antonio, Texas with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.