San Antonio 7-day weather forecast

Written by:
August 25, 2025
ESOlex // Shutterstock

San Antonio 7-day weather forecast

Stacker created the forecast for San Antonio, Texas using data from OpenWeather. This week's high is 102 °F on Friday, while the low is 74 °F on Monday. There are expected to be 5 sunny days and rain on 4 days this week.

There are currently no weather alerts.

Monday, August 25

- High of 98 °F, low of 74 °F (32% humidity)
- Sunny with a 86% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 7:08 AM, sunset at 8:04 PM
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1 / 6
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Tuesday, August 26

- High of 92 °F, low of 76 °F (42% humidity)
- Fair with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 7:08 AM, sunset at 8:03 PM
2 / 6
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Wednesday, August 27

- High of 95 °F, low of 76 °F (38% humidity)
- Sunny with a 74% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 7:09 AM, sunset at 8:02 PM
3 / 6
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Thursday, August 28

- High of 99 °F, low of 75 °F (38% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 7:09 AM, sunset at 8:01 PM
4 / 6
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Friday, August 29

- High of 102 °F, low of 77 °F (37% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 7:10 AM, sunset at 7:59 PM
5 / 6
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Saturday, August 30

- High of 100 °F, low of 77 °F (39% humidity)
- Overcast with a 99% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 7:10 AM, sunset at 7:58 PM
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6 / 6
Witaya Proadtayakogool // Shutterstock

Sunday, August 31

- High of 97 °F, low of 77 °F (40% humidity)
- Mostly cloudy with a 94% chance of rain (4 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 7:11 AM, sunset at 7:57 PM
- First quarter moon

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