Yes
you do need a jacket based on the weather in Sun Valley, ID 83353, USA 1 second ago
Why? Because it's quite chilly!
47°F8°C & Clear
Wind is 2 mph4 km/h from the North, gusting to 4 mph7 km/h
| September 18 | ||||
| 11am | 51°F10°C | 2 mph3 km/h North | Clear | |
| 12pm | 57°F14°C | 1 mph1 km/h West | Clear | |
| 1pm | 61°F16°C | 3 mph5 km/h South | Clear | |
| 2pm | 64°F18°C | 5 mph8 km/h South | Clear | |
| 3pm | 67°F19°C | 5 mph8 km/h South | Clear | |
| 4pm | 69°F20°C | 6 mph10 km/h South | Clear | |
| 5pm | 70°F21°C | 6 mph10 km/h South | Mostly Clear | |
| 6pm | 69°F21°C | 6 mph10 km/h South | Partly Cloudy | |
| 7pm | 69°F21°C | 7 mph11 km/h South | Partly Cloudy | |
| 8pm | 68°F20°C | 7 mph11 km/h South | Mostly Cloudy | |
| 9pm | 65°F18°C | 5 mph9 km/h South | Mostly Cloudy | |
| 10pm | 60°F16°C | 3 mph5 km/h South | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 44°F7°C | 70°F21°C | 5 mph7 km/h from South | Mostly Clear | Mostly Cloudy |
| September 19 | 48°F9°C | 70°F21°C | 4 mph7 km/h from South | Cloudy | Partly Cloudy |
| September 20 | 48°F9°C | 70°F21°C | 5 mph8 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| September 21 | 47°F8°C | 65°F19°C | 8 mph13 km/h from West | Partly Cloudy | Clear |
| September 22 | 38°F3°C | 69°F20°C | 5 mph7 km/h from South | Clear | Clear |
| September 23 | 43°F6°C | 73°F23°C | 4 mph7 km/h from South | Clear | Clear |
| September 24 | 46°F8°C | 73°F23°C | 6 mph9 km/h from Southeast | Mostly Clear | Mostly Clear |
Yes
Low of 47°F9°C, High of 70°F21°CWind: 4 mph7 km/h
Precipitation: None