Yes

you do need a jacket based on the weather in Maryland, USA 1 second ago

Why? Because it's cool enough your breath is visible, but your nose isn’t red yet!
45°F7°C & Clear

Wind is 3 mph5 km/h from the Northwest, gusting to 7 mph11 km/h
November 7
2am43°F6°C3 mph5 km/h NorthwestClear
3am42°F5°C3 mph5 km/h NorthwestClear
4am41°F5°C2 mph3 km/h NorthwestClear
5am40°F5°C1 mph1 km/h SouthwestMostly Clear
6am39°F4°C1 mph2 km/h SouthMostly Clear
7am39°F4°C4 mph6 km/h SouthMostly Clear
8am39°F4°C3 mph5 km/h SouthMostly Cloudy
9am39°F4°C3 mph5 km/h SouthMostly Cloudy
10am38°F4°C3 mph6 km/h SouthPartly Cloudy
11am39°F4°C5 mph8 km/h SouthMostly Clear
12pm39°F4°C6 mph10 km/h SouthMostly Clear
1pm43°F6°C8 mph13 km/h SouthPartly Cloudy
DateLowHighWindDayNight
November 640°F5°C60°F16°C4 mph7 km/h from NorthwestClearMostly Clear
November 738°F4°C62°F17°C12 mph19 km/h from SouthMostly CloudyRain
November 852°F11°C65°F18°C6 mph9 km/h from NorthwestMostly ClearPartly Cloudy
November 950°F10°C64°F18°C7 mph11 km/h from SouthMostly CloudyRain
November 1034°F1°C50°F10°C11 mph17 km/h from NorthwestMostly ClearPartly Cloudy
November 1129°F-1°C43°F6°C14 mph22 km/h from WestMostly ClearPartly Cloudy
November 1234°F1°C55°F13°C11 mph18 km/h from SouthwestMostly ClearPartly Cloudy

Yes

Low of 38°F4°C, High of 63°F17°C
Wind: 12 mph19 km/h
Precipitation: None

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