Yes
you do need a jacket based on the weather in Helensburgh, UK 1 second ago
Why? Because it's not very warm out and it's on the windy side!
58°F14°C & Mostly Clear
Wind is 13 mph21 km/h from the West, gusting to 21 mph34 km/h
| September 16 | ||||
| 8am | 58°F15°C | 14 mph22 km/h West | Mostly Clear | |
| 9am | 59°F15°C | 14 mph23 km/h West | Mostly Clear | |
| 10am | 59°F15°C | 14 mph23 km/h West | Mostly Clear | |
| 11am | 59°F15°C | 14 mph22 km/h West | Mostly Clear | |
| 12pm | 58°F15°C | 12 mph20 km/h West | Partly Cloudy | |
| 1pm | 58°F14°C | 11 mph17 km/h West | Partly Cloudy | |
| 2pm | 56°F13°C | 8 mph13 km/h West | Mostly Cloudy | |
| 3pm | 55°F13°C | 6 mph10 km/h West | Mostly Cloudy | |
| 4pm | 53°F12°C | 4 mph7 km/h West | Mostly Cloudy | |
| 5pm | 52°F11°C | 4 mph6 km/h Southwest | Cloudy | |
| 6pm | 52°F11°C | 3 mph5 km/h Southwest | Cloudy | |
| 7pm | 51°F11°C | 3 mph4 km/h South | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 51°F11°C | 59°F15°C | 11 mph18 km/h from West | Partly Cloudy | Rain |
| September 16 | 50°F10°C | 61°F16°C | 10 mph16 km/h from South | Drizzle | Mostly Cloudy |
| September 17 | 54°F12°C | 61°F16°C | 15 mph24 km/h from Southwest | Drizzle | Drizzle |
| September 18 | 51°F11°C | 59°F15°C | 7 mph12 km/h from Southwest | Drizzle | Cloudy |
| September 19 | 47°F9°C | 58°F14°C | 7 mph11 km/h from North | Drizzle | Mostly Cloudy |
| September 20 | 40°F5°C | 55°F13°C | 8 mph13 km/h from North | Partly Cloudy | Mostly Clear |
| September 21 | 42°F5°C | 56°F13°C | 6 mph9 km/h from Northeast | Mostly Clear | Partly Cloudy |
Yes
Low of 50°F10°C, High of 62°F17°CWind: 10 mph16 km/h
Precipitation: 80% rain