Yes
you do need a jacket based on the weather in Arcata, CA, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
56°F13°C & Mostly Cloudy
Wind is 1 mph2 km/h from the Southeast, gusting to 2 mph3 km/h
| September 22 | ||||
| 6am | 55°F13°C | 1 mph2 km/h Southeast | Mostly Cloudy | |
| 7am | 55°F13°C | 1 mph2 km/h East | Mostly Cloudy | |
| 8am | 55°F13°C | 1 mph2 km/h Northeast | Mostly Cloudy | |
| 9am | 55°F13°C | 1 mph2 km/h Southeast | Mostly Cloudy | |
| 10am | 54°F12°C | 2 mph3 km/h Southeast | Mostly Cloudy | |
| 11am | 54°F12°C | 2 mph3 km/h Southeast | Mostly Cloudy | |
| 12pm | 56°F14°C | 2 mph2 km/h Southwest | Partly Cloudy | |
| 1pm | 61°F16°C | 3 mph4 km/h Northwest | Partly Cloudy | |
| 2pm | 64°F18°C | 4 mph6 km/h Northwest | Mostly Clear | |
| 3pm | 67°F19°C | 4 mph7 km/h Northwest | Mostly Clear | |
| 4pm | 68°F20°C | 5 mph8 km/h Northwest | Mostly Clear | |
| 5pm | 69°F21°C | 5 mph8 km/h Northwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 22 | 54°F12°C | 69°F21°C | 4 mph6 km/h from Northwest | Mostly Clear | Clear |
| September 23 | 55°F13°C | 75°F24°C | 3 mph5 km/h from Northwest | Clear | Mostly Clear |
| September 24 | 56°F14°C | 72°F22°C | 4 mph6 km/h from West | Mostly Clear | Partly Cloudy |
| September 25 | 54°F12°C | 67°F19°C | 4 mph7 km/h from Northwest | Partly Cloudy | Mostly Clear |
| September 26 | 51°F11°C | 67°F19°C | 4 mph6 km/h from Northwest | Mostly Clear | Partly Cloudy |
| September 27 | 51°F11°C | 67°F19°C | 3 mph6 km/h from West | Mostly Clear | Mostly Clear |
| September 28 | 52°F11°C | 66°F19°C | 3 mph5 km/h from West | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 55°F13°C, High of 75°F24°CWind: 3 mph5 km/h
Precipitation: None