San Antonio (TX)
Today
Today weather in San Antonio
Monday, April 20th, 2026
16°
Moderate rain
Official weather alert: Flood Advisory. A slightly cool ambiance awaits San Antonio on today, with temperatures hovering between 12 °F in the morning and 15 °F in the afternoon. It'll be quite breezy in San Antonio Today with average wind speeds of 20 km/h. Heavy showers are forecasted, reaching up to 13.33 mm.
16° / 13°
Temp
87%
Rain
20 km/h
Wind
90%
Humidity
San Antonio Weather Pages
San Antonio hourly forecast for today
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| 12:00 AM | 01:00 AM | 02:00 AM | 03:00 AM | 04:00 AM | 05:00 AM | 06:00 AM | 07:00 AM | 07:02 AM | 08:00 AM | 09:00 AM | 10:00 AM | 11:00 AM | 12:00 PM | 01:00 PM | 02:00 PM | 03:00 PM | 04:00 PM | 05:00 PM | 06:00 PM | 07:00 PM | 08:00 PM | 08:04 PM | 09:00 PM | 10:00 PM | 11:00 PM | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | | | |  |  |  | |  |  |  | | | | | | | | |  |  | | | Next |
| temperatures | 13.4° | 13.3° | 13.1° | 13.1° | 13.3° | 13.4° | 13.5° | 13.7° | Sunrise | 13.9° | 14.3° | 14.9° | 13.7° | 13.4° | 13.5° | 13.8° | 14.1° | 14.4° | 14.5° | 14.7° | 14.8° | 15.1° | Sunset | 15.3° | 15.6° | 15.6° | |
| wind speed | 6 km/h | 7 km/h | 4 km/h | 3 km/h | 8 km/h | 8 km/h | 10 km/h | 13 km/h | 18 km/h | 13 km/h | 18 km/h | 19 km/h | 21 km/h | 18 km/h | 17 km/h | 19 km/h | 16 km/h | 16 km/h | 17 km/h | 19 km/h | 19 km/h | 19 km/h | 18 km/h | 17 km/h | |||
| wind degree | 231° | 283° | 81° | 38° | 42° | 22° | 35° | 44° | 53° | 64° | 63° | 55° | 58° | 68° | 64° | 62° | 60° | 54° | 54° | 59° | 62° | 66° | 75° | 82° | |||
| wind direction | SW | WNW | E | NE | NE | NNE | NE | NE | NE | ENE | ENE | NE | ENE | ENE | ENE | ENE | ENE | NE | NE | ENE | ENE | ENE | ENE | E | |||
| Precipitation | 0.2 mm | 0.3 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0.1 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 1.7 mm | 3.1 mm | 0.4 mm | 0.7 mm | 1.1 mm | 0.8 mm | 0.9 mm | 1.8 mm | 1.7 mm | 0.3 mm | 0.2 mm | 0.1 mm | |||
| chance for rain | 100% | 100% | 74% | 82% | 65% | 76% | 100% | 0% | 0% | 0% | 0% | 0% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 70% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 92% | 88% | 88% | 84% | 86% | 84% | 81% | 84% | 83% | 80% | 80% | 76% | 95% | 96% | 95% | 97% | 97% | 95% | 96% | 96% | 96% | 96% | 95% | 94% | |||
| dew point | 12.1° | 11.3° | 11.2° | 10.3° | 10.9° | 10.9° | 10.2° | 10.9° | 11.1° | 10.8° | 11.1° | 11.5° | 11.8° | 12.4° | 13° | 13.6° | 13.8° | 13.7° | 14° | 14.3° | 14.3° | 14.6° | 14.9° | 14.9° | |||
| visibility | 10 km | 9 km | 2 km | 2 km | 10 km | 10 km | 10 km | 10 km | 10 km | 9 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 3.2 km | 10 km | 10 km | 10 km | 2 km | 2 km | 10 km | 10 km | |||
| cloud cover | 71% | 82% | 84% | 88% | 84% | 81% | 100% | 97% | 25% | 54% | 66% | 100% | 96% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 97% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 0.5 | 0.7 | 1.2 | 1.4 | 0.8 | 0.8 | 0.5 | 0.2 | 0.1 | 0 | 0 | 0 | 0 | 0 |
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View of San Antonio today
Explore San Antonio live webcam feed to see how the weather is shaping up today in San Antonio. See what people are wearing, check out the sky, and get a sense of the atmosphere before you step outside.
Stay informed and make the most of your day with our live weather updates from San Antonio today.
Weather in San Antonio today
The weather in San Antonio today is expected to be much cooler than usual, with a forecast temperature of 16 °F, compared to an average of 25 °F for April 20th in recent years.
temperatures
16 °F
rain
13.3 mm
wind
20 km/h
UV
Low
San Antonio daylight overview ☀️
Today in San Antonio, The sun rises at 07:02 and sets at 20:04, giving a total daylight duration of 13 hours and 2 minutes.
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What to wear today in San Antonio? clothing recommendations
Stay comfortably stylish - your tailored guide for today's San Antonio forecast.
Long-sleeve shirt
Long pant
Closed-toe shoes
Light jacket
Umbrella
The weather today in San Antonio - FAQ
What is the maximum temperature for today in San Antonio?
The maximum temperature for today in San Antonio is expected to be 16° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in San Antonio? 🌧️
Yes, there is a 87% chance of rain in San Antonio today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in San Antonio? 🌀
The wind in San Antonio is expected to blow at 20 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in San Antonio today?
Given the forecast of 16 °F with a 87% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in San Antonio today.
What is the sunrise and sunset time for San Antonio today?
The sun is expected to rise at 07:02 and set at 20:04 in San Antonio.
How accurate is the weather forecast San Antonio today? ✅
San Antonio weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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