No

you don't need a jacket based on the weather in 53100 Siena, Province of Siena, Italy 1 second ago

78°F25°C & Mostly Clear

Wind is 2 mph4 km/h from the Southwest, gusting to 9 mph14 km/h
August 26
7am79°F26°C3 mph5 km/h SouthwestMostly Clear
8am80°F27°C3 mph5 km/h WestMostly Clear
9am81°F27°C3 mph5 km/h WestMostly Clear
10am82°F28°C4 mph6 km/h WestMostly Clear
11am81°F27°C4 mph7 km/h WestMostly Clear
12pm81°F27°C5 mph8 km/h WestMostly Clear
1pm78°F26°C5 mph7 km/h WestPartly Cloudy
2pm75°F24°C4 mph7 km/h WestPartly Cloudy
3pm72°F22°C3 mph5 km/h NorthwestPartly Cloudy
4pm70°F21°C3 mph5 km/h NorthwestMostly Cloudy
5pm69°F21°C3 mph4 km/h NorthwestMostly Cloudy
6pm68°F20°C2 mph3 km/h NorthwestMostly Cloudy
DateLowHighWindDayNight
August 2562°F17°C82°F28°C3 mph5 km/h from WestMostly ClearMostly Cloudy
August 2664°F18°C83°F28°C5 mph7 km/h from SouthPartly CloudyPartly Cloudy
August 2767°F19°C82°F28°C11 mph18 km/h from SouthThunderstormsThunderstorms
August 2863°F17°C74°F23°C5 mph8 km/h from SouthThunderstormsThunderstorms
August 2960°F16°C75°F24°C7 mph11 km/h from WestMostly ClearMostly Clear
August 3059°F15°C79°F26°C4 mph7 km/h from WestMostly ClearMostly Clear
August 3163°F17°C79°F26°C7 mph12 km/h from SouthwestMostly ClearMostly Cloudy

No

Low of 64°F18°C, High of 83°F29°C
Wind: 5 mph7 km/h
Precipitation: 52% rain

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