Yes

you do need a jacket based on the weather in Anchorage, AK 99501, USA 1 second ago

Why? Because the cold's there, but it's just a reminder, not an invasion and the wind is harsh and biting!
47°F8°C & Cloudy

Wind is 9 mph14 km/h from the Northeast, gusting to 21 mph33 km/h
May 5
12am47°F8°C9 mph14 km/h NortheastCloudy
1am46°F8°C8 mph13 km/h NortheastDrizzle
2am45°F7°C7 mph12 km/h NortheastCloudy
3am43°F6°C7 mph11 km/h NortheastCloudy
4am43°F6°C7 mph11 km/h NortheastCloudy
5am42°F6°C7 mph12 km/h NortheastCloudy
6am42°F5°C7 mph12 km/h NortheastCloudy
7am41°F5°C7 mph11 km/h NorthDrizzle
8am41°F5°C7 mph11 km/h NorthDrizzle
9am41°F5°C6 mph10 km/h NorthDrizzle
10am40°F5°C5 mph9 km/h NorthDrizzle
11am41°F5°C5 mph9 km/h NorthDrizzle
DateLowHighWindDayNight
May 440°F4°C47°F9°C5 mph7 km/h from NorthwestCloudyDrizzle
May 540°F5°C52°F11°C9 mph14 km/h from SoutheastDrizzleMostly Cloudy
May 638°F4°C52°F11°C4 mph6 km/h from SoutheastMostly CloudyPartly Cloudy
May 735°F1°C53°F11°C3 mph5 km/h from SouthPartly CloudyPartly Cloudy
May 837°F3°C54°F12°C3 mph5 km/h from WestPartly CloudyClear
May 938°F3°C56°F14°C3 mph5 km/h from WestMostly ClearMostly Clear
May 1040°F4°C57°F14°C4 mph6 km/h from WestMostly ClearMostly Clear

Yes

Low of 40°F5°C, High of 52°F11°C
Wind: 9 mph14 km/h
Precipitation: 69% rain

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