San Antonio 7-day weather forecast

Written by:
March 23, 2026
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San Antonio 7-day weather forecast

created the forecast for San Antonio, Texas using data from . This week's high is 98 掳F on Monday, while the low is 66 掳F on Sunday. There are expected to be 0 sunny days and rain on 6 days this week.

There are currently no weather alerts.

Monday, May 18

- High of 98 掳F, low of 76 掳F (50% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Fresh breeze (20 mph wind)
- Sunrise at 6:40 AM, sunset at 8:21 PM
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1 / 6
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Tuesday, May 19

- High of 88 掳F, low of 72 掳F (56% humidity)
- Mostly cloudy with a 100% chance of rain (5 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 6:39 AM, sunset at 8:21 PM
2 / 6
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Wednesday, May 20

- High of 88 掳F, low of 74 掳F (65% humidity)
- Partly sunny with a 100% chance of rain (22 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 6:39 AM, sunset at 8:22 PM
3 / 6
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Thursday, May 21

- High of 81 掳F, low of 70 掳F (77% humidity)
- Overcast with a 100% chance of rain (8 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 6:38 AM, sunset at 8:22 PM
4 / 6
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Friday, May 22

- High of 89 掳F, low of 67 掳F (66% humidity)
- Mostly cloudy with a 100% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:38 AM, sunset at 8:23 PM
5 / 6
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Saturday, May 23

- High of 74 掳F, low of 68 掳F (96% humidity)
- Overcast with a 100% chance of rain (81 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:37 AM, sunset at 8:24 PM
- First quarter moon
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6 / 6
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Sunday, May 24

- High of 88 掳F, low of 66 掳F (67% humidity)
- Partly cloudy with a 100% chance of rain (5 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:37 AM, sunset at 8:24 PM

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