Yes

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

Why? Because it's so windy, even the squirrels are holding onto branches for dear life!
62°F17°C & Cloudy

Wind is 13 mph21 km/h from the West, gusting to 24 mph38 km/h
March 20
6pm60°F16°C15 mph24 km/h NorthwestRain
7pm54°F12°C15 mph23 km/h NorthwestRain
8pm52°F11°C13 mph21 km/h NorthwestRain
9pm51°F10°C13 mph22 km/h NorthwestCloudy
10pm49°F10°C14 mph22 km/h NorthwestMostly Cloudy
11pm48°F9°C14 mph22 km/h NorthwestMostly Cloudy
March 21
12am46°F8°C14 mph22 km/h NorthwestPartly Cloudy
1am44°F7°C14 mph23 km/h NorthwestMostly Clear
2am42°F5°C16 mph25 km/h NorthwestWindy
3am39°F4°C16 mph26 km/h NorthwestWindy
4am38°F3°C16 mph26 km/h NorthwestWindy
5am37°F3°C16 mph26 km/h NorthwestWindy
DateLowHighWindDayNight
March 2046°F8°C72°F22°C7 mph11 km/h from SouthwestRainRain
March 2135°F2°C55°F13°C14 mph22 km/h from NorthwestClearMostly Cloudy
March 2240°F5°C60°F16°C11 mph18 km/h from WestPartly CloudyMostly Clear
March 2332°F-0°C54°F12°C5 mph8 km/h from SouthwestPartly CloudyDrizzle
March 2443°F6°C61°F16°C10 mph16 km/h from SouthwestCloudyPartly Cloudy
March 2541°F5°C55°F13°C10 mph16 km/h from WestMostly CloudyDrizzle
March 2637°F3°C52°F11°C9 mph15 km/h from WestPartly CloudyPartly Cloudy

Yes

Low of 35°F2°C, High of 55°F13°C
Wind: 14 mph22 km/h
Precipitation: None

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