Yes

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

Why? Because just cool enough for a jacket, but not warm enough to ditch it and it's windy enough to give you a brand new hairdo!
51°F10°C & Mostly Cloudy

Wind is 12 mph19 km/h from the Northwest, gusting to 22 mph36 km/h
October 25
10am51°F10°C12 mph20 km/h NorthwestMostly Cloudy
11am52°F11°C13 mph21 km/h NorthwestPartly Cloudy
12pm52°F11°C14 mph22 km/h NorthwestMostly Cloudy
1pm53°F12°C14 mph23 km/h NorthwestPartly Cloudy
2pm52°F11°C14 mph23 km/h NorthwestPartly Cloudy
3pm52°F11°C14 mph23 km/h NorthwestMostly Clear
4pm50°F10°C13 mph20 km/h NorthwestMostly Clear
5pm48°F9°C11 mph18 km/h NorthwestClear
6pm47°F8°C11 mph18 km/h WestMostly Clear
7pm45°F7°C10 mph17 km/h WestMostly Clear
8pm45°F7°C11 mph18 km/h WestPartly Cloudy
9pm45°F7°C11 mph18 km/h WestDrizzle
DateLowHighWindDayNight
October 2445°F7°C53°F12°C11 mph18 km/h from NorthwestPartly CloudyDrizzle
October 2540°F5°C53°F12°C13 mph21 km/h from WestDrizzleCloudy
October 2748°F9°C56°F13°C14 mph23 km/h from WestPartly CloudyMostly Cloudy
October 2849°F10°C59°F15°C14 mph23 km/h from WestMostly CloudyCloudy
October 2948°F9°C57°F14°C9 mph14 km/h from SouthwestDrizzleMostly Cloudy
October 3050°F10°C58°F14°C12 mph19 km/h from SouthRainRain
October 3152°F11°C57°F14°C18 mph28 km/h from SouthwestDrizzleDrizzle

Yes

Low of 40°F5°C, High of 53°F12°C
Wind: 13 mph21 km/h
Precipitation: 46% rain

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