Yes

you do need a jacket based on the weather in Buffalo, NY, USA 5 minutes ago

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer and the wind is offering free, unsolicited face massages!
47°F8°C & Cloudy

Wind is 10 mph16 km/h from the West, gusting to 22 mph36 km/h
May 24
2am47°F8°C10 mph16 km/h WestCloudy
3am47°F8°C11 mph17 km/h WestMostly Cloudy
4am46°F8°C10 mph17 km/h WestCloudy
5am46°F8°C10 mph16 km/h WestCloudy
6am47°F8°C9 mph15 km/h WestDrizzle
7am47°F8°C9 mph15 km/h WestDrizzle
8am47°F9°C10 mph16 km/h WestCloudy
9am48°F9°C11 mph17 km/h WestCloudy
10am50°F10°C11 mph17 km/h NorthwestCloudy
11am51°F11°C10 mph17 km/h NorthwestCloudy
12pm52°F11°C11 mph17 km/h NorthwestCloudy
1pm54°F12°C10 mph16 km/h WestCloudy
DateLowHighWindDayNight
May 2446°F8°C56°F13°C10 mph17 km/h from WestDrizzlePartly Cloudy
May 2545°F7°C58°F14°C9 mph14 km/h from WestMostly CloudyMostly Clear
May 2647°F8°C65°F19°C5 mph9 km/h from WestMostly ClearPartly Cloudy
May 2748°F9°C71°F21°C5 mph7 km/h from SoutheastCloudyCloudy
May 2854°F12°C65°F18°C8 mph14 km/h from SoutheastRainDrizzle
May 2957°F14°C67°F20°C8 mph13 km/h from SouthwestDrizzleDrizzle
May 3053°F12°C64°F18°C14 mph22 km/h from SouthwestDrizzleRain

Yes

Low of 45°F7°C, High of 58°F15°C
Wind: 9 mph14 km/h
Precipitation: 29% rain

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