San Marcos Valley Airport Weather Forecast 15 Days, Weather in Today
Current weather conditions and 15 day weather forecast for San Marcos Valley Airport, California, 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 Valley Airport
| 05 December 2025 Friday 12.8 ° C / 55°F  Clear |
Feels Like : 12.9 ° C / 55.3°F Humidity : % 35 Pressure : 1021 mb Wind Speed : 5 kmph / 3.1 miles from ENE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for San Marcos Valley Airport, CA, USA
Weather Forecast for next 15 Days for San Marcos Valley 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 Valley Airport, California 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday | Sunny |
7.1 ° C (44.8°F) |
19.4 ° C (66.9°F) |
13.4 ° C (56°F) |
% 41 | 0% | 0.6 | Sunrise:06:37 AM Sunset: 04:41 PM |
Moonrise:05:25 PM Moonset: 07:42 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday | Sunny |
11.5 ° C (52.7°F) |
17.7 ° C (63.9°F) |
13.9 ° C (57.1°F) |
% 52 | 0% | 0.7 | Sunrise:06:38 AM Sunset: 04:41 PM |
Moonrise:06:36 PM Moonset: 08:46 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday | Sunny |
10.6 ° C (51.1°F) |
19.8 ° C (67.6°F) |
14.3 ° C (57.7°F) |
% 61 | 0% | 0.7 | Sunrise:06:39 AM Sunset: 04:41 PM |
Moonrise:07:50 PM Moonset: 09:40 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday | Sunny |
12.4 ° C (54.4°F) |
23.3 ° C (74°F) |
16.7 ° C (62.1°F) |
% 44 | 0% | 0.6 | Sunrise:06:40 AM Sunset: 04:41 PM |
Moonrise:09:00 PM Moonset: 10:23 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday | Sunny |
15.5 ° C (59.9°F) |
24.5 ° C (76°F) |
17.6 ° C (63.6°F) |
% 32 | 0% | 0 | Sunrise:06:40 AM Sunset: 04:42 PM |
Moonrise:10:06 PM Moonset: 10:59 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday | Sunny |
14.6 ° C (58.3°F) |
23.3 ° C (74°F) |
17.6 ° C (63.7°F) |
% 35 | 0% | 5 | Sunrise:06:41 AM Sunset: 04:42 PM |
Moonrise:11:07 PM Moonset: 11:29 AM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday | Sunny |
13.8 ° C (56.8°F) |
23.1 ° C (73.6°F) |
17.1 ° C (62.7°F) |
% 39 | 0% | 5 | Sunrise:06:42 AM Sunset: 04:42 PM |
Moonrise:No moonrise Moonset: 11:55 AM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Sunny |
14 ° C (57.2°F) |
22.5 ° C (72.6°F) |
17.1 ° C (62.7°F) |
% 41 | 0% | 5 | Sunrise:06:43 AM Sunset: 04:42 PM |
Moonrise:12:06 AM Moonset: 12:20 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday |  Overcast |
13.2 ° C (55.8°F) |
20.4 ° C (68.7°F) |
15.7 ° C (60.3°F) |
% 50 | 0% | 4 | Sunrise:06:43 AM Sunset: 04:43 PM |
Moonrise:01:03 AM Moonset: 12:45 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Sunny |
11.8 ° C (53.3°F) |
20.1 ° C (68.1°F) |
15.1 ° C (59.2°F) |
% 55 | 0% | 5 | Sunrise:06:44 AM Sunset: 04:43 PM |
Moonrise:01:59 AM Moonset: 01:11 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday | Sunny |
12.7 ° C (54.9°F) |
20.4 ° C (68.8°F) |
15.5 ° C (59.9°F) |
% 52 | 0% | 5 | Sunrise:06:45 AM Sunset: 04:43 PM |
Moonrise:02:55 AM Moonset: 01:39 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Sunny |
11.3 ° C (52.4°F) |
18.5 ° C (65.2°F) |
14 ° C (57.2°F) |
% 63 | 0% | 4 | Sunrise:06:45 AM Sunset: 04:44 PM |
Moonrise:03:53 AM Moonset: 02:10 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Sunny |
10.6 ° C (51.2°F) |
17.7 ° C (63.9°F) |
13.6 ° C (56.5°F) |
% 78 | 0% | 4 | Sunrise:06:46 AM Sunset: 04:44 PM |
Moonrise:04:51 AM Moonset: 02:47 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Sunny |
12.1 ° C (53.8°F) |
18.1 ° C (64.6°F) |
14.5 ° C (58.2°F) |
% 82 | 0% | 4 | Sunrise:06:46 AM Sunset: 04:44 PM |
Moonrise:05:50 AM Moonset: 03:31 PM Moon Phase ( Waning Crescent ) |
|
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