National Weather Service United States Department of Commerce

Oppressive heat and humidity building into the central and southeast U.S.

A heat wave is building into parts of the central and southeast U.S. this week. The combination of heat and humidity will lead to dangerous heat indices, especially in parts of the central Mississippi River Valley where an Excessive Heat Warning is in effect. Heat Advisories are in effect elsewhere across the region. Relief is not expected for several days.
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Current Conditions

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San Antonio TX

7 Day Forecast

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 26 °C

Thursday

Hot

Hot

High: 38 °C

Thursday
Night

Increasing Clouds

Increasing
Clouds

Low: 26 °C

Friday

Hot

Hot

High: 38 °C

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 24 °C

Saturday

Hot

Hot

High: 37 °C

Saturday
Night

Partly Cloudy

Partly
Cloudy

Low: 24 °C

Sunday

Hot

Hot

High: 37 °C

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 24 °C

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 26. South southeast wind 15 to 20 km/h.
  • Thursday Mostly cloudy, then gradually becoming sunny and hot, with a high near 38. South wind 15 to 20 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h.
  • Thursday Night Increasing clouds, with a low around 26. South southeast wind 25 to 30 km/h decreasing to 15 to 20 km/h after midnight. Winds could gust as high as 35 km/h.
  • Friday Mostly sunny and hot, with a high near 38. South wind 15 to 25 km/h.
  • Friday Night Partly cloudy, with a low around 24. South southeast wind 20 to 25 km/h decreasing to 10 to 15 km/h after midnight. Winds could gust as high as 30 km/h.
  • Saturday Mostly sunny and hot, with a high near 37. South wind 10 to 20 km/h.
  • Saturday Night Partly cloudy, with a low around 24. Southeast wind 20 to 25 km/h decreasing to 10 to 15 km/h after midnight. Winds could gust as high as 35 km/h.
  • Sunday Mostly sunny and hot, with a high near 37. South southeast wind 5 to 10 km/h increasing to 10 to 15 km/h in the afternoon.
  • Sunday Night Partly cloudy, with a low around 24. South southeast wind 20 to 25 km/h decreasing to 10 to 15 km/h after midnight.
  • Monday Mostly sunny and hot, with a high near 36.
  • Monday Night Mostly clear, with a low around 24.
  • Tuesday Mostly sunny and hot, with a high near 37.
  • Tuesday Night Mostly clear, with a low around 24.
  • Wednesday Sunny and hot, with a high near 37.