Yes

you do need a jacket based on the weather in Isfahan, Isfahan Province, Iran 1 second ago

Why? Because it's cool. Pleasantly cool, but cool!
54°F12°C & Clear

Wind is 2 mph4 km/h from the East, gusting to 7 mph12 km/h
November 4
6pm53°F12°C3 mph5 km/h EastClear
7pm51°F11°C3 mph4 km/h EastClear
8pm50°F10°C2 mph4 km/h NorthClear
9pm48°F9°C2 mph4 km/h NorthwestClear
10pm46°F8°C2 mph3 km/h NorthwestClear
11pm45°F7°C2 mph3 km/h WestClear
November 5
12am44°F7°C2 mph3 km/h WestClear
1am43°F6°C2 mph3 km/h WestClear
2am42°F6°C2 mph3 km/h WestClear
3am42°F5°C2 mph3 km/h WestClear
4am44°F6°C2 mph3 km/h SouthwestClear
5am49°F10°C2 mph3 km/h SouthwestClear
DateLowHighWindDayNight
November 342°F6°C69°F20°C4 mph7 km/h from EastClearClear
November 441°F5°C69°F20°C3 mph4 km/h from EastMostly ClearClear
November 541°F5°C69°F20°C3 mph5 km/h from EastMostly ClearClear
November 641°F5°C68°F20°C2 mph4 km/h from EastMostly ClearMostly Clear
November 741°F5°C69°F20°C2 mph3 km/h from EastMostly ClearPartly Cloudy
November 842°F5°C68°F20°C2 mph4 km/h from EastClearClear
November 942°F6°C66°F19°C3 mph4 km/h from EastClearClear

Yes

Low of 42°F6°C, High of 69°F21°C
Wind: 3 mph4 km/h
Precipitation: None

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