Heat Advisory

* WHAT...Temperatures up to 104 and heat index values up to 112 expected.

* WHERE...The northern Hill Country, I-35 Corridor, and Coastal Plains.

* WHEN...From 2 PM this afternoon to 7 PM CDT Sunday.

* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Sunday, Aug 23, 7:00 PM CDT
Partially cloudy
100°
Feels 105°
 34%
Dewpt 67°
 s
5 - 6 mph
Thursday, Aug 20
Partly cloudy throughout the day.
77 102 77 - 102
Friday, Aug 21
Partly cloudy throughout the day.
79 103 79 - 103
Saturday, Aug 22
Clear conditions throughout the day.
78 103 78 - 103
Sunday, Aug 23
Clear conditions throughout the day.
79 103 79 - 103
Monday, Aug 24
Clear conditions throughout the day.
78 102 78 - 102
Tuesday, Aug 25
Clear conditions throughout the day.
78 102 78 - 102
Wednesday, Aug 26
Clear conditions throughout the day.
78 102 78 - 102
Thursday, Aug 27
Clear conditions throughout the day.
79 102 79 - 102
Friday, Aug 28
Clearing in the afternoon.
75 103 75 - 103
Saturday, Aug 29
Clear conditions throughout the day.
76 104 76 - 104
Sunday, Aug 30
Clear conditions throughout the day.
76 103 76 - 103
Monday, Aug 31
Clear conditions throughout the day.
76 102 76 - 102
Tuesday, Sep 1
Clearing in the afternoon.
75 101 75 - 101
Wednesday, Sep 2
Partly cloudy throughout the day.
75 100 75 - 100
Thursday, Sep 3
Clear conditions throughout the day.
73 99 73 - 99
Weather forecast for San Antonio, TX on Thu, 20 Aug 2026 21:08:44 GMT