Yes

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

Why? Because it's really really huffing out there!
61°F16°C & Windy

Wind is 24 mph38 km/h from the West, gusting to 42 mph68 km/h
September 15
12pm61°F16°C24 mph39 km/h WestDrizzle
1pm60°F16°C23 mph38 km/h WestDrizzle
2pm59°F15°C23 mph37 km/h WestWindy
3pm59°F15°C23 mph36 km/h WestWindy
4pm58°F14°C22 mph36 km/h WestWindy
5pm57°F14°C22 mph36 km/h WestWindy
6pm57°F14°C22 mph35 km/h WestWindy
7pm56°F13°C22 mph35 km/h WestDrizzle
8pm56°F13°C21 mph34 km/h WestWindy
9pm55°F13°C21 mph34 km/h WestWindy
10pm54°F12°C21 mph34 km/h WestWindy
11pm54°F12°C21 mph33 km/h WestWindy
DateLowHighWindDayNight
September 1456°F13°C63°F17°C24 mph38 km/h from SouthwestDrizzleDrizzle
September 1553°F12°C64°F18°C18 mph28 km/h from WestWindyRain
September 1652°F11°C71°F22°C17 mph28 km/h from SouthwestRainMostly Cloudy
September 1757°F14°C70°F21°C16 mph25 km/h from SouthwestWindyMostly Cloudy
September 1860°F16°C72°F22°C13 mph20 km/h from SouthwestMostly CloudyMostly Cloudy
September 1958°F14°C71°F22°C9 mph14 km/h from SouthDrizzlePartly Cloudy
September 2051°F11°C63°F17°C13 mph21 km/h from SouthwestMostly CloudyDrizzle

Yes

Low of 53°F12°C, High of 64°F18°C
Wind: 18 mph28 km/h
Precipitation: 28% rain

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