No
you don't need a jacket based on the weather in 53100 Siena, Province of Siena, Italy 1 second ago
66°F19°C & Mostly Clear
Wind is 1 mph1 km/h from the East, gusting to 4 mph6 km/h
| August 23 | ||||
| 3am | 69°F20°C | 1 mph2 km/h Southeast | Clear | |
| 4am | 72°F22°C | 2 mph3 km/h Southeast | Clear | |
| 5am | 75°F24°C | 2 mph3 km/h South | Mostly Clear | |
| 6am | 77°F25°C | 2 mph3 km/h Southwest | Mostly Clear | |
| 7am | 79°F26°C | 2 mph3 km/h West | Mostly Clear | |
| 8am | 80°F27°C | 4 mph6 km/h West | Partly Cloudy | |
| 9am | 80°F27°C | 5 mph7 km/h West | Partly Cloudy | |
| 10am | 79°F26°C | 5 mph8 km/h West | Mostly Cloudy | |
| 11am | 78°F26°C | 6 mph9 km/h West | Mostly Clear | |
| 12pm | 77°F25°C | 6 mph9 km/h Northwest | Mostly Clear | |
| 1pm | 75°F24°C | 4 mph7 km/h Northwest | Mostly Clear | |
| 2pm | 73°F23°C | 3 mph5 km/h Northwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 22 | 62°F17°C | 80°F27°C | 3 mph5 km/h from West | Mostly Clear | Mostly Clear |
| August 23 | 63°F17°C | 80°F27°C | 3 mph5 km/h from North | Partly Cloudy | Mostly Clear |
| August 24 | 61°F16°C | 80°F27°C | 4 mph7 km/h from West | Partly Cloudy | Partly Cloudy |
| August 25 | 62°F17°C | 81°F27°C | 2 mph4 km/h from West | Mostly Clear | Mostly Clear |
| August 26 | 62°F17°C | 84°F29°C | 5 mph8 km/h from South | Mostly Clear | Partly Cloudy |
| August 27 | 66°F19°C | 81°F27°C | 10 mph16 km/h from South | Mostly Cloudy | Thunderstorms |
| August 28 | 64°F18°C | 75°F24°C | 6 mph10 km/h from Southwest | Thunderstorms | Thunderstorms |
No
Low of 63°F17°C, High of 80°F27°CWind: 3 mph5 km/h
Precipitation: 22% rain