Yes

you do need a jacket based on the weather in Exeter, UK 1 second ago

Why? Because it's so windy, your hat is now someone else's problem, two cities away!
65°F18°C & Windy

Wind is 16 mph26 km/h from the Southwest, gusting to 30 mph49 km/h
July 15
5am65°F18°C17 mph27 km/h SouthwestWindy
6am66°F19°C16 mph26 km/h SouthwestWindy
7am66°F19°C17 mph28 km/h SouthwestWindy
8am68°F20°C18 mph29 km/h WestWindy
9am69°F21°C19 mph31 km/h WestWindy
10am69°F21°C18 mph30 km/h WestWindy
11am68°F20°C19 mph30 km/h WestWindy
12pm68°F20°C19 mph31 km/h WestWindy
1pm67°F19°C19 mph30 km/h WestWindy
2pm66°F19°C18 mph29 km/h WestWindy
3pm64°F18°C17 mph27 km/h WestWindy
4pm63°F17°C15 mph24 km/h WestMostly Cloudy
DateLowHighWindDayNight
July 1456°F13°C70°F21°C17 mph28 km/h from WestWindyMostly Cloudy
July 1559°F15°C72°F22°C5 mph7 km/h from WestDrizzleDrizzle
July 1662°F17°C76°F25°C7 mph12 km/h from SouthwestMostly CloudyMostly Cloudy
July 1758°F15°C74°F23°C6 mph9 km/h from SouthwestMostly CloudyRain
July 1858°F14°C68°F20°C7 mph12 km/h from WestRainDrizzle
July 1956°F13°C65°F19°C11 mph18 km/h from SouthRainDrizzle
July 2054°F12°C68°F20°C12 mph19 km/h from NorthwestRainDrizzle

No

Low of 59°F15°C, High of 72°F22°C
Wind: 5 mph7 km/h
Precipitation: 34% rain

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