San Antonio weather live forecast

Today's maximum temperature in San Antonio is expected to be 35°C. Select a day from the live weather forecast for San Antonio, Texas, USA for more weather parameters.

5-day weather forecast updated at 04:00 on Tuesday 30th September 2025 GMT

More about San Antonio

San Antonio by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for San Antonio

Cosmos: up to £900 savings on 2026 tours

  • Save up to £900 per couple on 2026 tours worldwide
  • Discount varies by destination. T&Cs apply
  • Travel between 1st Jan & 31st Dec 2026 (inclusive)
Go to Cosmos deal >>

Expires at 23:59 on Tuesday 30th Sep 2025 · View all Cosmos offers

CosmosTour deal finder

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 Tuesday 30th September 2025

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-east.

  • 35°C maximum temperature35
    °C maximum temperature
  • 21°C minimum temperature21
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 11 kph from the North-East11
    kph wind from NE

Back to top

San Antonio weather for Wednesday 1st October 2025

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-east.

  • 36°C maximum temperature36
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 11 kph from the South-East11
    kph wind from SE

Back to top

San Antonio weather for Thursday 2nd October 2025

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.

  • 36°C maximum temperature36
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 12 kph from the South-East12
    kph wind from SE

Back to top

San Antonio weather for Friday 3rd October 2025

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the east.

  • 35°C maximum temperature35
    °C maximum temperature
  • 21°C minimum temperature21
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 15 kph from the East15
    kph wind from E

Back to top

San Antonio weather for Saturday 4th October 2025

Expect scattered clouds in San Antonio, Texas with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the east.

  • 34°C maximum temperature34
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 16 kph from the East16
    kph wind from E

Back to top

Marriott discount code: Kids stay & eat for free

  • Kids stay & eat for free at Marriot Bonvoy
  • Destinations include Europe, Middle East & Africa
  • Valid for up to 2 adults & 2 kids aged up to 12
Show discount codeShow discount code ******ZJ6
Redeem Marriott discount code >>

View all Marriott offers

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about the USA

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^