Yes

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

Why? Because light rain: when the sky can't decide if it’s serious or just messing with you and it's cool. Pleasantly cool, but cool and the wind is harsh and biting!
55°F13°C & Drizzle

Wind is 12 mph19 km/h from the Southwest, gusting to 24 mph38 km/h
September 11
1pm53°F12°C12 mph19 km/h SouthwestRain
2pm52°F11°C10 mph17 km/h WestDrizzle
3pm51°F11°C7 mph12 km/h SouthwestDrizzle
4pm50°F10°C6 mph10 km/h SouthDrizzle
5pm50°F10°C5 mph8 km/h SouthDrizzle
6pm49°F9°C4 mph7 km/h SouthwestDrizzle
7pm48°F9°C5 mph7 km/h SouthwestDrizzle
8pm48°F9°C4 mph7 km/h SouthwestDrizzle
9pm48°F9°C4 mph7 km/h SouthwestDrizzle
10pm48°F9°C6 mph9 km/h SouthwestMostly Cloudy
11pm48°F9°C7 mph11 km/h SouthwestDrizzle
September 12
12am48°F9°C6 mph9 km/h SouthwestCloudy
DateLowHighWindDayNight
September 1048°F9°C56°F13°C11 mph18 km/h from SouthwestRainDrizzle
September 1148°F9°C56°F14°C12 mph19 km/h from SouthwestDrizzleRain
September 1248°F9°C56°F13°C12 mph20 km/h from SouthwestDrizzleDrizzle
September 1346°F8°C58°F15°C12 mph20 km/h from SoutheastRainRain
September 1451°F11°C57°F14°C13 mph20 km/h from WestRainDrizzle
September 1549°F9°C58°F14°C12 mph19 km/h from WestDrizzleRain
September 1649°F10°C60°F15°C11 mph18 km/h from SouthwestRainDrizzle

Yes

Low of 48°F9°C, High of 56°F14°C
Wind: 12 mph19 km/h
Precipitation: 67% rain

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