San Marcos Regional Airport Weather Forecast 15 Days, Weather in KHYI Today
Current weather conditions and 15 day weather forecast for San Marcos Regional Airport, 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 Marcos Regional Airport
| 22 December 2025 Monday 15.6 ° C / 60.1°F  Overcast |
Feels Like : 15.6 ° C / 60.1°F Humidity : % 78 Pressure : 1024 mb Wind Speed : 9 kmph / 5.6 miles from NNE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for San Marcos Regional Airport, TX, USA
Weather Forecast for next 15 Days for San Marcos Regional Airport 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 Marcos Regional Airport, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 22 December 2025 Monday | Overcast |
11.9 ° C (53.4°F) |
17.1 ° C (62.8°F) |
14.7 ° C (58.5°F) |
% 89 | 0% | 0.5 | Sunrise:07:24 AM Sunset: 05:38 PM |
Moonrise:09:36 AM Moonset: 08:04 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Overcast |
16.4 ° C (61.5°F) |
21.5 ° C (70.7°F) |
18.5 ° C (65.2°F) |
% 96 | 0% | 0.7 | Sunrise:07:25 AM Sunset: 05:38 PM |
Moonrise:10:12 AM Moonset: 09:04 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday |  Fog |
17.6 ° C (63.6°F) |
22.7 ° C (72.9°F) |
19.4 ° C (66.9°F) |
% 91 | 0% | 0.8 | Sunrise:07:25 AM Sunset: 05:39 PM |
Moonrise:10:45 AM Moonset: 10:03 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Fog |
17.5 ° C (63.5°F) |
26.9 ° C (80.4°F) |
21.1 ° C (69.9°F) |
% 83 | 0% | 0.7 | Sunrise:07:25 AM Sunset: 05:39 PM |
Moonrise:11:16 AM Moonset: 11:03 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Fog |
18.6 ° C (65.4°F) |
28.6 ° C (83.4°F) |
20.9 ° C (69.7°F) |
% 86 | 0% | 0 | Sunrise:07:26 AM Sunset: 05:40 PM |
Moonrise:11:45 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Partly Cloudy |
17.7 ° C (63.8°F) |
27.9 ° C (82.3°F) |
21.6 ° C (70.9°F) |
% 78 | 0% | 6 | Sunrise:07:26 AM Sunset: 05:40 PM |
Moonrise:12:14 PM Moonset: 12:03 AM Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Cloudy |
17 ° C (62.6°F) |
24.1 ° C (75.4°F) |
19.6 ° C (67.4°F) |
% 85 | 0% | 4 | Sunrise:07:27 AM Sunset: 05:41 PM |
Moonrise:12:46 PM Moonset: 01:05 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Partly Cloudy |
15.4 ° C (59.8°F) |
22.8 ° C (73°F) |
18.1 ° C (64.6°F) |
% 65 | 0% | 5 | Sunrise:07:27 AM Sunset: 05:42 PM |
Moonrise:01:22 PM Moonset: 02:10 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Sunny |
11.4 ° C (52.5°F) |
19.2 ° C (66.5°F) |
14.1 ° C (57.3°F) |
% 46 | 0% | 4 | Sunrise:07:27 AM Sunset: 05:42 PM |
Moonrise:02:03 PM Moonset: 03:19 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
9.2 ° C (48.6°F) |
22.3 ° C (72.2°F) |
14.7 ° C (58.5°F) |
% 67 | 0% | 4 | Sunrise:07:27 AM Sunset: 05:43 PM |
Moonrise:02:52 PM Moonset: 04:31 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Overcast |
14.2 ° C (57.6°F) |
26.5 ° C (79.6°F) |
19.4 ° C (66.9°F) |
% 80 | 0% | 4 | Sunrise:07:28 AM Sunset: 05:44 PM |
Moonrise:03:52 PM Moonset: 05:44 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday |  Patchy rain nearby |
13.9 ° C (57.1°F) |
22.7 ° C (72.8°F) |
19.2 ° C (66.6°F) |
% 62 | 65% | 4 | Sunrise:07:28 AM Sunset: 05:45 PM |
Moonrise:04:59 PM Moonset: 06:53 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Sunny |
8 ° C (46.3°F) |
16.7 ° C (62.1°F) |
11.3 ° C (52.3°F) |
% 35 | 0% | 4 | Sunrise:07:28 AM Sunset: 05:45 PM |
Moonrise:06:11 PM Moonset: 07:54 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Sunny |
5 ° C (41°F) |
19.8 ° C (67.6°F) |
11.2 ° C (52.2°F) |
% 41 | 0% | 4 | Sunrise:07:28 AM Sunset: 05:46 PM |
Moonrise:07:23 PM Moonset: 08:45 AM Moon Phase ( Waning Gibbous ) |
|
Add a link to your web page; copy and paste this html to your web page