Yes
you do need a jacket based on the weather in San Marcos, CA, USA 1 second ago
Why? Because it's not very warm out!
56°F13°C & Mostly Cloudy
Wind is 2 mph3 km/h from the North, gusting to 2 mph4 km/h
| October 26 | ||||
| 12pm | 56°F13°C | 2 mph3 km/h North | Mostly Cloudy | |
| 1pm | 55°F13°C | 2 mph3 km/h East | Mostly Cloudy | |
| 2pm | 55°F13°C | 2 mph3 km/h East | Partly Cloudy | |
| 3pm | 56°F13°C | 2 mph3 km/h Northeast | Partly Cloudy | |
| 4pm | 59°F15°C | 1 mph2 km/h West | Partly Cloudy | |
| 5pm | 64°F18°C | 3 mph4 km/h West | Mostly Clear | |
| 6pm | 68°F20°C | 4 mph6 km/h West | Mostly Clear | |
| 7pm | 71°F22°C | 5 mph9 km/h West | Mostly Clear | |
| 8pm | 73°F23°C | 6 mph10 km/h West | Clear | |
| 9pm | 73°F23°C | 7 mph11 km/h West | Clear | |
| 10pm | 73°F23°C | 7 mph11 km/h West | Clear | |
| 11pm | 71°F22°C | 7 mph10 km/h West | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 26 | 55°F13°C | 73°F23°C | 4 mph7 km/h from West | Mostly Clear | Clear |
| October 27 | 53°F12°C | 76°F25°C | 5 mph7 km/h from West | Clear | Clear |
| October 28 | 58°F15°C | 85°F29°C | 4 mph6 km/h from West | Clear | Clear |
| October 29 | 60°F16°C | 88°F31°C | 4 mph6 km/h from Northwest | Clear | Clear |
| October 30 | 60°F15°C | 84°F29°C | 4 mph6 km/h from Southwest | Clear | Mostly Clear |
| October 31 | 58°F14°C | 79°F26°C | 4 mph6 km/h from West | Mostly Clear | Mostly Clear |
| November 1 | 58°F15°C | 77°F25°C | 4 mph6 km/h from West | Mostly Clear | Clear |
Yes
Low of 54°F12°C, High of 76°F25°CWind: 5 mph7 km/h
Precipitation: None