No
you don't need a jacket based on the weather in St Gallen, Switzerland 1 second ago
61°F16°C & Clear
Wind is 3 mph5 km/h from the South, gusting to 6 mph9 km/h
| September 18 | ||||
| 5pm | 60°F16°C | 3 mph5 km/h South | Clear | |
| 6pm | 59°F15°C | 3 mph4 km/h South | Clear | |
| 7pm | 59°F15°C | 3 mph4 km/h South | Clear | |
| 8pm | 58°F14°C | 2 mph4 km/h South | Clear | |
| 9pm | 57°F14°C | 2 mph4 km/h South | Clear | |
| 10pm | 57°F14°C | 2 mph4 km/h South | Clear | |
| 11pm | 56°F13°C | 3 mph4 km/h South | Clear | |
| September 19 | ||||
| 12am | 55°F13°C | 2 mph4 km/h South | Clear | |
| 1am | 55°F13°C | 2 mph4 km/h South | Clear | |
| 2am | 57°F14°C | 2 mph4 km/h South | Clear | |
| 3am | 61°F16°C | 2 mph3 km/h South | Clear | |
| 4am | 66°F19°C | 1 mph2 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 17 | 53°F11°C | 74°F23°C | 3 mph4 km/h from Northwest | Clear | Clear |
| September 18 | 55°F13°C | 78°F26°C | 2 mph4 km/h from North | Clear | Mostly Clear |
| September 19 | 58°F15°C | 79°F26°C | 2 mph4 km/h from North | Mostly Clear | Mostly Clear |
| September 20 | 59°F15°C | 70°F21°C | 3 mph5 km/h from North | Partly Cloudy | Rain |
| September 21 | 51°F11°C | 59°F15°C | 5 mph8 km/h from North | Rain | Rain |
| September 22 | 46°F8°C | 52°F11°C | 8 mph12 km/h from Northeast | Rain | Rain |
| September 23 | 43°F6°C | 50°F10°C | 4 mph7 km/h from North | Rain | Drizzle |
Yes
Low of 55°F13°C, High of 79°F26°CWind: 2 mph4 km/h
Precipitation: None