San Antonio 7-day weather forecast

Written by:
September 8, 2025
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San Antonio 7-day weather forecast

Stacker created the forecast for San Antonio, Texas using data from OpenWeather. This week's high is 97 °F on Friday, while the low is 71 °F on Friday. There are expected to be 4 sunny days and rain on 4 days this week.

There are currently no weather alerts.

Monday, September 15

- High of 92 °F, low of 73 °F (33% humidity)
- Sunny with a 66% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 7:18 AM, sunset at 7:39 PM
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Tuesday, September 16

- High of 95 °F, low of 72 °F (33% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 7:19 AM, sunset at 7:38 PM
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Witaya Proadtayakogool // Shutterstock

Wednesday, September 17

- High of 96 °F, low of 72 °F (31% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 7:19 AM, sunset at 7:36 PM
3 / 6
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Thursday, September 18

- High of 91 °F, low of 72 °F (38% humidity)
- Mostly cloudy with a 20% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 7:20 AM, sunset at 7:35 PM
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Friday, September 19

- High of 97 °F, low of 71 °F (36% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 7:20 AM, sunset at 7:34 PM
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Maxim Grohotov // Shutterstock

Saturday, September 20

- High of 97 °F, low of 72 °F (37% humidity)
- Partly cloudy with a 34% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 7:21 AM, sunset at 7:33 PM
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6 / 6
Piyawat Nandeenopparit // Shutterstock

Sunday, September 21

- High of 93 °F, low of 75 °F (38% humidity)
- Sunny with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 7:21 AM, sunset at 7:32 PM
- New moon

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