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San Antonio, Texas weather · now

87°

Clear

Feels
91°
High / Low
100° / 77°
Wind
58 mph SE
Humidity
58%
No precipitation expected in the next 1.7 hours.
GoodAir quality PollenTreeNoneGrassModerateWeedModerate
Sun 7:00 AM 8:17 PM 13h 17m
Moon Waning Crescent 1% lit

Current weather and 7-day forecast for San Antonio, Texas, sourced directly from the National Weather Service. Expect mostly sunny today. Today's high is 100° with a low near 77°.

What to wear today

Stay cool — limit sun exposure

Extreme heat at 100°F. Light colors, hat, and shade breaks.

Next 24 hours

70° 90° 105° ↑ 100° ↓ 78° 11 PM 2 AM 5 AM 8 AM 11 AM 2 PM 5 PM 8 PM

  1. 11 PM

    85°

    0%

  2. 1 AM

    81°

    0%

  3. 3 AM

    80°

    0%

  4. 5 AM

    80°

    0%

  5. 7 AM

    78°

    0%

  6. 9 AM

    80°

    0%

  7. 11 AM

    87°

    1%

  8. 1 PM

    94°

    0%

  9. 3 PM

    99°

    0%

  10. 5 PM

    100°

    0%

  11. 7 PM

    98°

    0%

  12. 9 PM

    91°

    0%

Live radar

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7 days

  1. Today 8/12 Mostly Sunny 1% 100° · 77°
    1. 12 AM 83° Mostly Clear
    2. 1 AM 81° Mostly Clear
    3. 2 AM 81° Mostly Clear
    4. 3 AM 80° Mostly Clear
    5. 4 AM 80° Partly Cloudy
    6. 5 AM 80° Partly Cloudy
    7. 6 AM 79° Mostly Sunny
    8. 7 AM 78° Partly Sunny
    9. 8 AM 80° Mostly Cloudy
    10. 9 AM 80° Mostly Cloudy
    11. 10 AM 84° Mostly Sunny 1%
    12. 11 AM 87° Sunny 1%
    13. 12 PM 91° Sunny 1%
    14. 1 PM 94° Sunny
    15. 2 PM 96° Sunny
    16. 3 PM 99° Sunny
    17. 4 PM 100° Sunny
    18. 5 PM 100° Sunny
    19. 6 PM 100° Clear
    20. 7 PM 98° Clear
    21. 8 PM 96° Clear
    22. 9 PM 91° Clear
    23. 10 PM 88° Clear
    24. 11 PM 85° Clear
  2. Thu 8/13 Mostly Sunny 0% 101° · 78°
    1. 12 AM 83° Clear
    2. 1 AM 81° Clear
    3. 2 AM 81° Mostly Clear
    4. 3 AM 80° Mostly Clear
    5. 4 AM 79° Partly Cloudy
    6. 5 AM 79° Partly Cloudy
    7. 6 AM 78° Partly Sunny
    8. 7 AM 77° Partly Sunny
    9. 8 AM 79° Mostly Cloudy
    10. 9 AM 81° Partly Sunny
    11. 10 AM 84° Mostly Sunny
    12. 11 AM 88° Mostly Sunny
    13. 12 PM 92° Sunny
    14. 1 PM 96° Sunny
    15. 2 PM 98° Sunny
    16. 3 PM 100° Sunny
    17. 4 PM 101° Sunny
    18. 5 PM 101° Sunny
    19. 6 PM 100° Clear
    20. 7 PM 98° Clear
    21. 8 PM 94° Clear
    22. 9 PM 90° Clear
    23. 10 PM 87° Clear
    24. 11 PM 84° Mostly Clear
  3. Fri 8/14 Mostly Sunny 3% 98° · 77°
    1. 12 AM 82° Mostly Clear
    2. 1 AM 81° Mostly Clear
    3. 2 AM 81° Mostly Clear
    4. 3 AM 80° Partly Cloudy
    5. 4 AM 80° Mostly Cloudy
    6. 5 AM 79° Mostly Cloudy
    7. 6 AM 78° Partly Sunny
    8. 7 AM 78° Partly Sunny
    9. 8 AM 80° Partly Sunny
    10. 9 AM 82° Mostly Sunny
    11. 10 AM 85° Mostly Sunny
    12. 11 AM 88° Mostly Sunny
    13. 12 PM 92° Mostly Sunny
    14. 1 PM 95° Sunny 3%
    15. 2 PM 96° Sunny 3%
    16. 3 PM 97° Mostly Sunny 3%
    17. 4 PM 98° Mostly Sunny 3%
    18. 5 PM 97° Mostly Sunny 3%
    19. 6 PM 97° Mostly Clear 3%
    20. 7 PM 94° Mostly Clear
    21. 8 PM 91° Mostly Clear
    22. 9 PM 88° Mostly Clear
    23. 10 PM 86° Mostly Clear
    24. 11 PM 84° Mostly Clear
  4. Sat 8/15 Mostly Sunny 2% 98° · 76°
    1. 12 AM 82° Mostly Clear
    2. 1 AM 81° Mostly Clear
    3. 2 AM 80° Mostly Clear
    4. 3 AM 80° Mostly Clear
    5. 4 AM 80° Mostly Clear
    6. 5 AM 79° Mostly Clear
    7. 6 AM 78° Sunny
    8. 7 AM 78° Mostly Cloudy
    9. 8 AM 79° Mostly Cloudy
    10. 9 AM 81° Mostly Cloudy
    11. 10 AM 84° Mostly Cloudy
    12. 11 AM 87° Mostly Cloudy
    13. 12 PM 91° Mostly Cloudy
    14. 1 PM 94° Mostly Sunny 2%
    15. 2 PM 96° Mostly Sunny 2%
    16. 3 PM 97° Mostly Sunny 2%
    17. 4 PM 98° Mostly Sunny 2%
    18. 5 PM 98° Mostly Sunny 2%
    19. 6 PM 98° Partly Cloudy 2%
    20. 7 PM 96° Mostly Clear
    21. 8 PM 93° Mostly Clear
    22. 9 PM 90° Mostly Clear
    23. 10 PM 87° Mostly Clear
    24. 11 PM 85° Mostly Clear
  5. Sun 8/16 Mostly Sunny 0% 99° · 77°
    1. 12 AM 83° Mostly Clear
    2. 1 AM 81° Partly Cloudy
    3. 2 AM 80° Partly Cloudy
    4. 3 AM 79° Partly Cloudy
    5. 4 AM 78° Partly Cloudy
    6. 5 AM 77° Partly Cloudy
    7. 6 AM 77° Mostly Sunny
    8. 7 AM 77° Partly Sunny
    9. 8 AM 78° Partly Sunny
    10. 9 AM 80° Partly Sunny
    11. 10 AM 82° Partly Sunny
    12. 11 AM 86° Partly Sunny
    13. 12 PM 89° Partly Sunny
    14. 1 PM 93° Sunny
    15. 2 PM 95° Sunny
    16. 3 PM 97° Sunny
    17. 4 PM 98° Sunny
    18. 5 PM 99° Sunny
    19. 6 PM 98° Mostly Clear
    20. 7 PM 97° Mostly Clear
    21. 8 PM 94° Mostly Clear
    22. 9 PM 91° Mostly Clear
    23. 10 PM 87° Mostly Clear
    24. 11 PM 84° Mostly Clear
  6. Mon 8/17 Sunny 1% 99° · 78°
    1. 12 AM 82° Mostly Clear
    2. 1 AM 81° Mostly Clear
    3. 2 AM 80° Mostly Clear
    4. 3 AM 79° Mostly Clear
    5. 4 AM 79° Mostly Clear
    6. 5 AM 78° Mostly Clear
    7. 6 AM 77° Sunny
    8. 7 AM 77° Mostly Sunny
    9. 8 AM 78° Mostly Sunny
    10. 9 AM 81° Mostly Sunny
    11. 10 AM 84° Mostly Sunny
    12. 11 AM 87° Mostly Sunny
    13. 12 PM 91° Mostly Sunny
    14. 1 PM 94° Sunny 1%
    15. 2 PM 96° Sunny 1%
    16. 3 PM 97° Sunny 1%
    17. 4 PM 98° Sunny 1%
    18. 5 PM 99° Sunny 1%
    19. 6 PM 98° Mostly Clear 1%
    20. 7 PM 97° Mostly Clear
    21. 8 PM 94° Mostly Clear
    22. 9 PM 90° Mostly Clear
    23. 10 PM 87° Mostly Clear
    24. 11 PM 85° Mostly Clear
  7. Tue 8/18 Sunny 1% 99° · —
    1. 12 AM 83° Mostly Clear
    2. 1 AM 82° Mostly Clear
    3. 2 AM 81° Mostly Clear
    4. 3 AM 81° Mostly Clear
    5. 4 AM 80° Mostly Clear
    6. 5 AM 79° Mostly Clear
    7. 6 AM 78° Sunny
    8. 7 AM 78° Mostly Sunny
    9. 8 AM 79° Mostly Sunny
    10. 9 AM 81° Mostly Sunny
    11. 10 AM 84° Mostly Sunny
Extended outlook days 8–16
  1. Wed 8/19 Cloudy 2% 102° · 76°
  2. Thu 8/20 Sunny 2% 106° · 75°
  3. Fri 8/21 Mostly Sunny 3% 104° · 73°
  4. Sat 8/22 Cloudy 10% 104° · 73°
  5. Sun 8/23 Mostly Sunny 13% 103° · 76°
  6. Mon 8/24 Partly Cloudy 24% 104° · 76°
  7. Tue 8/25 Drizzle 33% 101° · 78°
  8. Wed 8/26 Drizzle 26% 96° · 76°
  9. Thu 8/27 Cloudy 23% — · —

Days 8+ from the Open-Meteo multi-model ensemble — treat as a guide; accuracy drops past day 7.

Best day this week

Quiet week — most days look comparable.

Monday, 8/17

Sunny, 99° / 78°

  1. Tomorrow101°78°
  2. Fri98°77°
  3. Sat98°76°
  4. Sun99°77°
  5. Mon99°78°
  6. Tue99°

Best time to head outside

Picks the upcoming daytime hour with the most favorable conditions for each activity. Factors in temperature, wind, precipitation timing, and pollen.

Climate normals

What weather to expect in San Antonio

San Antonio in August typically averages 98° highs and 78° lows, with about 14 days of rain. The hottest stretch is August (average high 98°); the coldest is January (average low 43°). June is the wettest month on average.

MonthAvg highAvg lowRainy days
Jan62°43°9
Feb71°50°6
Mar81°58°11
Apr82°64°22
May87°68°19
Jun92°75°24
Jul93°75°19
Aug98°78°14
Sep92°73°9
Oct89°67°7
Nov77°57°10
Dec69°52°13

Normals derived from the past two years of observations via Open-Meteo's historical archive.

More for San Antonio

Other cities in Texas

Detailed forecast (NWS)

Wednesday
Mostly sunny, with a high near 100. Heat index values as high as 105. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 101. Heat index values as high as 106. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 98. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
Mostly sunny, with a high near 98. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Forecast details

NWS gridpoint
EWX 126,54
Radar station
KEWX
Time zone
America/Chicago
Coordinates
29.424, -98.494