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
| 25 September 2026 Friday 25.8 ° C / 78.4°F  Patchy rain nearby |
Feels Like : 28 ° C / 82.4°F Humidity : % 79 Pressure : 1017 mb Wind Speed : 10.1 kmph / 6.3 miles from SSE  Visibility : 10 km Precipitation (rainfall) : 0.07 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 September 2026 Friday |  Sunny |
23.6 ° C (74.4°F) |
35 ° C (95°F) |
28.6 ° C (83.4°F) |
% 56 | 57% | 8.9 | Sunrise:07:21 AM Sunset: 07:24 PM |
Moonrise:06:52 PM Moonset: 06:25 AM Moon Phase ( Full Moon ) |
|
| 26 September 2026 Saturday |  Overcast |
22.7 ° C (72.9°F) |
33.8 ° C (92.8°F) |
27.8 ° C (82.1°F) |
% 56 | 9% | 8.2 | Sunrise:07:22 AM Sunset: 07:23 PM |
Moonrise:07:19 PM Moonset: 07:20 AM Moon Phase ( Full Moon ) |
|
| 27 September 2026 Sunday | Sunny |
23 ° C (73.4°F) |
35.1 ° C (95.2°F) |
28.6 ° C (83.4°F) |
% 53 | 4% | 8.7 | Sunrise:07:22 AM Sunset: 07:22 PM |
Moonrise:07:48 PM Moonset: 08:17 AM Moon Phase ( Waning Gibbous ) |
|
| 28 September 2026 Monday | Overcast |
22.8 ° C (73°F) |
35.6 ° C (96°F) |
28.1 ° C (82.6°F) |
% 60 | 10% | 8.4 | Sunrise:07:23 AM Sunset: 07:20 PM |
Moonrise:08:20 PM Moonset: 09:15 AM Moon Phase ( Waning Gibbous ) |
|
| 29 September 2026 Tuesday | Patchy rain nearby |
22 ° C (71.7°F) |
32 ° C (89.5°F) |
26.6 ° C (79.9°F) |
% 67 | 46% | 7 | Sunrise:07:23 AM Sunset: 07:19 PM |
Moonrise:08:58 PM Moonset: 10:17 AM Moon Phase ( Waning Gibbous ) |
|
| 30 September 2026 Wednesday | Patchy rain nearby |
23.1 ° C (73.6°F) |
31.2 ° C (88.2°F) |
26.6 ° C (80°F) |
% 74 | 82% | 7 | Sunrise:07:24 AM Sunset: 07:18 PM |
Moonrise:09:41 PM Moonset: 11:20 AM Moon Phase ( Waning Gibbous ) |
|
| 01 October 2026 Thursday | Sunny |
23.3 ° C (73.9°F) |
33.8 ° C (92.9°F) |
27.8 ° C (82°F) |
% 72 | 69% | 8 | Sunrise:07:24 AM Sunset: 07:17 PM |
Moonrise:10:32 PM Moonset: 12:25 PM Moon Phase ( Last Quarter ) |
|
| 02 October 2026 Friday | Overcast |
22.7 ° C (72.9°F) |
30 ° C (86°F) |
26 ° C (78.8°F) |
% 61 | 43% | 7 | Sunrise:07:25 AM Sunset: 07:16 PM |
Moonrise:11:32 PM Moonset: 01:28 PM Moon Phase ( Last Quarter ) |
|
| 03 October 2026 Saturday | Patchy rain nearby |
23.2 ° C (73.8°F) |
30.2 ° C (86.4°F) |
26.1 ° C (78.9°F) |
% 66 | 39% | 7 | Sunrise:07:25 AM Sunset: 07:14 PM |
Moonrise:Does not rise today Moonset: 02:26 PM Moon Phase ( Last Quarter ) |
|
| 04 October 2026 Sunday | Patchy rain nearby |
19.2 ° C (66.6°F) |
31.2 ° C (88.1°F) |
24.8 ° C (76.6°F) |
% 75 | 77% | 7 | Sunrise:07:26 AM Sunset: 07:13 PM |
Moonrise:12:37 AM Moonset: 03:18 PM Moon Phase ( Last Quarter ) |
|
| 05 October 2026 Monday | Overcast |
13.3 ° C (55.9°F) |
19.2 ° C (66.6°F) |
15.8 ° C (60.5°F) |
% 67 | 54% | 5 | Sunrise:07:27 AM Sunset: 07:12 PM |
Moonrise:01:47 AM Moonset: 04:03 PM Moon Phase ( Waning Crescent ) |
|
| 06 October 2026 Tuesday |  Light rain shower |
8.9 ° C (48°F) |
13.2 ° C (55.8°F) |
11 ° C (51.7°F) |
% 70 | 83% | 3 | Sunrise:07:27 AM Sunset: 07:11 PM |
Moonrise:02:56 AM Moonset: 04:42 PM Moon Phase ( Waning Crescent ) |
|
| 07 October 2026 Wednesday | Overcast |
12.5 ° C (54.5°F) |
22.7 ° C (72.9°F) |
16.7 ° C (62.1°F) |
% 46 | 5% | 6 | Sunrise:07:28 AM Sunset: 07:10 PM |
Moonrise:04:05 AM Moonset: 05:18 PM Moon Phase ( Waning Crescent ) |
|
| 08 October 2026 Thursday | Sunny |
15.5 ° C (59.9°F) |
26.3 ° C (79.3°F) |
20.4 ° C (68.7°F) |
% 39 | 1% | 7 | Sunrise:07:28 AM Sunset: 07:08 PM |
Moonrise:05:12 AM Moonset: 05:51 PM Moon Phase ( Waning Crescent ) |
|
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