Yes
you do need a jacket based on the weather in St Helens, OR, 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 will probably launch into orbit!
45°F7°C & Cloudy
Wind is 12 mph19 km/h from the South, gusting to 27 mph44 km/h
| December 14 | ||||
| 12pm | 45°F7°C | 11 mph18 km/h South | Rain | |
| 1pm | 46°F8°C | 10 mph17 km/h South | Drizzle | |
| 2pm | 47°F8°C | 10 mph16 km/h South | Cloudy | |
| 3pm | 48°F9°C | 10 mph16 km/h South | Drizzle | |
| 4pm | 48°F9°C | 8 mph14 km/h Southwest | Cloudy | |
| 5pm | 48°F9°C | 7 mph12 km/h Southwest | Mostly Cloudy | |
| 6pm | 48°F9°C | 6 mph9 km/h Southwest | Mostly Cloudy | |
| 7pm | 46°F8°C | 4 mph7 km/h Southwest | Mostly Cloudy | |
| 8pm | 44°F6°C | 4 mph6 km/h Southwest | Partly Cloudy | |
| 9pm | 42°F5°C | 4 mph7 km/h South | Mostly Cloudy | |
| 10pm | 41°F5°C | 6 mph9 km/h Southwest | Drizzle | |
| 11pm | 40°F5°C | 4 mph7 km/h South | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 14 | 40°F4°C | 48°F9°C | 8 mph13 km/h from South | Rain | Drizzle |
| December 15 | 36°F2°C | 45°F7°C | 5 mph8 km/h from Southeast | Cloudy | Rain |
| December 16 | 40°F4°C | 47°F8°C | 6 mph9 km/h from Southeast | Rain | Rain |
| December 17 | 42°F6°C | 52°F11°C | 7 mph11 km/h from Southeast | Rain | Rain |
| December 18 | 43°F6°C | 54°F12°C | 5 mph8 km/h from South | Rain | Mostly Cloudy |
| December 19 | 41°F5°C | 54°F12°C | 2 mph4 km/h from South | Drizzle | Drizzle |
| December 20 | 46°F8°C | 53°F11°C | 3 mph5 km/h from Southeast | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 36°F2°C, High of 45°F7°CWind: 5 mph8 km/h
Precipitation: None