Yes

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

Why? Because a jacket will keep you cozy, but you won't break a seat!
58°F14°C & Mostly Clear

Wind is 4 mph7 km/h from the Northwest, gusting to 10 mph16 km/h
August 2
5am60°F16°C5 mph8 km/h NorthwestMostly Clear
6am62°F17°C5 mph8 km/h WestMostly Clear
7am64°F18°C5 mph8 km/h WestPartly Cloudy
8am65°F19°C6 mph9 km/h WestPartly Cloudy
9am67°F19°C6 mph10 km/h SouthwestPartly Cloudy
10am68°F20°C8 mph12 km/h SouthwestPartly Cloudy
11am68°F20°C9 mph14 km/h SouthwestMostly Clear
12pm68°F20°C10 mph17 km/h SouthwestPartly Cloudy
1pm67°F19°C11 mph18 km/h SouthwestPartly Cloudy
2pm65°F18°C11 mph17 km/h SouthwestPartly Cloudy
3pm63°F17°C10 mph16 km/h SouthwestMostly Cloudy
4pm61°F16°C8 mph13 km/h SouthwestMostly Cloudy
DateLowHighWindDayNight
August 149°F9°C68°F20°C7 mph11 km/h from WestMostly ClearDrizzle
August 255°F13°C68°F20°C13 mph21 km/h from WestRainRain
August 352°F11°C65°F19°C22 mph35 km/h from SouthwestRainDrizzle
August 452°F11°C63°F17°C18 mph28 km/h from WestWindyMostly Clear
August 553°F12°C66°F19°C9 mph14 km/h from SouthwestMostly CloudyRain
August 654°F12°C64°F18°C12 mph19 km/h from SouthwestRainDrizzle
August 754°F12°C64°F18°C15 mph24 km/h from SouthwestPartly CloudyMostly Cloudy

Yes

Low of 55°F13°C, High of 68°F20°C
Wind: 13 mph21 km/h
Precipitation: 60% rain

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