Yes
you do need a jacket based on the weather in Norristown, PA 19401, USA 1 second ago
Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer and it's so windy, your hat is now someone else's problem, two cities away!
33°F0°C & Clear
Wind is 11 mph18 km/h from the West, gusting to 27 mph44 km/h
| December 12 | ||||
| 3am | 32°F0°C | 11 mph18 km/h West | Clear | |
| 4am | 32°F-0°C | 10 mph16 km/h West | Clear | |
| 5am | 31°F-0°C | 10 mph16 km/h Southwest | Clear | |
| 6am | 31°F-1°C | 10 mph17 km/h Southwest | Clear | |
| 7am | 31°F-0°C | 11 mph18 km/h Southwest | Clear | |
| 8am | 32°F0°C | 12 mph20 km/h Southwest | Mostly Clear | |
| 9am | 34°F1°C | 15 mph24 km/h West | Windy | |
| 10am | 35°F1°C | 16 mph26 km/h West | Windy | |
| 11am | 36°F2°C | 16 mph26 km/h West | Windy | |
| 12pm | 36°F2°C | 16 mph26 km/h West | Windy | |
| 1pm | 37°F3°C | 15 mph25 km/h West | Windy | |
| 2pm | 38°F3°C | 15 mph24 km/h West | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 12 | 25°F-4°C | 38°F3°C | 14 mph22 km/h from West | Mostly Clear | Clear |
| December 13 | 23°F-5°C | 36°F2°C | 7 mph11 km/h from Northwest | Mostly Clear | Mostly Clear |
| December 14 | 19°F-7°C | 38°F3°C | 4 mph6 km/h from Northeast | Mostly Clear | Mostly Clear |
| December 15 | 22°F-5°C | 40°F5°C | 5 mph7 km/h from East | Cloudy | Drizzle |
| December 16 | 33°F0°C | 47°F8°C | 5 mph8 km/h from East | Rain | Rain |
| December 17 | 42°F6°C | 56°F13°C | 11 mph17 km/h from Southwest | Rain | Rain |
| December 18 | 34°F1°C | 48°F9°C | 8 mph13 km/h from Northwest | Partly Cloudy | Partly Cloudy |
Yes
Low of 23°F-5°C, High of 36°F2°CWind: 7 mph11 km/h
Precipitation: None