San Antonio Weather Forecast 15 Days, Weather in San Antonio Today
Current weather conditions and 15 day weather forecast for San Antonio, Texas, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at San Antonio
| 18 December 2025 Thursday 15.6 ° C / 60.1°F  Mist |
Feels Like : 15.6 ° C / 60.1°F Humidity : % 96 Pressure : 1011 mb Wind Speed : 12.6 kmph / 7.8 miles from SW  Visibility : 9.7 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for San Antonio, TX, USA
Weather Forecast for next 15 Days for San Antonio including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in San Antonio, Texas state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 18 December 2025 Thursday |  Partly Cloudy |
14.3 ° C (57.7°F) |
29 ° C (84.2°F) |
19.3 ° C (66.7°F) |
% 72 | 0% | 0.8 | Sunrise:07:23 AM Sunset: 05:39 PM |
Moonrise:06:20 AM Moonset: 04:25 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Sunny |
8.1 ° C (46.6°F) |
22.1 ° C (71.8°F) |
14.6 ° C (58.3°F) |
% 35 | 0% | 0.8 | Sunrise:07:24 AM Sunset: 05:39 PM |
Moonrise:07:16 AM Moonset: 05:15 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Overcast |
7.9 ° C (46.2°F) |
17.2 ° C (62.9°F) |
13.2 ° C (55.8°F) |
% 77 | 0% | 0.4 | Sunrise:07:24 AM Sunset: 05:40 PM |
Moonrise:08:08 AM Moonset: 06:09 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Sunny |
15.8 ° C (60.5°F) |
27.3 ° C (81.2°F) |
20.4 ° C (68.8°F) |
% 79 | 0% | 0.8 | Sunrise:07:25 AM Sunset: 05:40 PM |
Moonrise:08:55 AM Moonset: 07:08 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday |  Patchy rain nearby |
18 ° C (64.4°F) |
23.1 ° C (73.5°F) |
19.8 ° C (67.6°F) |
% 90 | 69% | 0 | Sunrise:07:25 AM Sunset: 05:41 PM |
Moonrise:09:37 AM Moonset: 08:07 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Patchy rain nearby |
19.2 ° C (66.6°F) |
25.9 ° C (78.6°F) |
22.1 ° C (71.8°F) |
% 80 | 88% | 5 | Sunrise:07:26 AM Sunset: 05:41 PM |
Moonrise:10:14 AM Moonset: 09:07 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Partly Cloudy |
18.2 ° C (64.8°F) |
27.3 ° C (81.2°F) |
21.9 ° C (71.3°F) |
% 78 | 0% | 6 | Sunrise:07:26 AM Sunset: 05:42 PM |
Moonrise:10:47 AM Moonset: 10:06 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Partly Cloudy |
17.8 ° C (64.1°F) |
28.1 ° C (82.5°F) |
21.7 ° C (71°F) |
% 77 | 0% | 6 | Sunrise:07:27 AM Sunset: 05:43 PM |
Moonrise:11:18 AM Moonset: 11:05 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Sunny |
17.1 ° C (62.8°F) |
27.8 ° C (82.1°F) |
21.3 ° C (70.3°F) |
% 70 | 0% | 6 | Sunrise:07:27 AM Sunset: 05:43 PM |
Moonrise:11:47 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Partly Cloudy |
16.5 ° C (61.6°F) |
23.3 ° C (73.9°F) |
19.7 ° C (67.4°F) |
% 81 | 0% | 5 | Sunrise:07:27 AM Sunset: 05:44 PM |
Moonrise:12:17 PM Moonset: 12:05 AM Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Patchy rain nearby |
16.4 ° C (61.5°F) |
20.6 ° C (69.1°F) |
17.9 ° C (64.3°F) |
% 87 | 87% | 4 | Sunrise:07:28 AM Sunset: 05:44 PM |
Moonrise:12:49 PM Moonset: 01:07 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Patchy rain nearby |
8.4 ° C (47.1°F) |
10.6 ° C (51.1°F) |
10.6 ° C (51.1°F) |
% 64 | 82% | 3 | Sunrise:07:28 AM Sunset: 05:45 PM |
Moonrise:01:25 PM Moonset: 02:11 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Moderate rain |
1.9 ° C (35.5°F) |
3.3 ° C (38°F) |
3.4 ° C (38.1°F) |
% 77 | 89% | 1 | Sunrise:07:28 AM Sunset: 05:46 PM |
Moonrise:02:06 PM Moonset: 03:20 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Patchy rain nearby |
2.1 ° C (35.8°F) |
3.7 ° C (38.7°F) |
3.1 ° C (37.6°F) |
% 93 | 83% | 1 | Sunrise:07:29 AM Sunset: 05:46 PM |
Moonrise:02:56 PM Moonset: 04:32 AM Moon Phase ( Waxing Gibbous ) |
|
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