Yes
you do need a jacket based on the weather in Helena, MT, USA 1 second ago
Why? Because it's pretty chilly.
57°F14°C & Mostly Clear
Wind is 6 mph9 km/h from the E, gusting to 14 mph23 km/h
| April 23 | ||||
| 4pm | 59°F15°C | 6 mph10 km/h E | Mostly Clear | |
| 5pm | 60°F16°C | 7 mph11 km/h E | Mostly Clear | |
| 6pm | 61°F16°C | 7 mph11 km/h E | Partly Cloudy | |
| 7pm | 62°F17°C | 6 mph10 km/h E | Partly Cloudy | |
| 8pm | 61°F16°C | 6 mph10 km/h E | Partly Cloudy | |
| 9pm | 60°F16°C | 6 mph10 km/h E | Partly Cloudy | |
| 10pm | 56°F13°C | 4 mph7 km/h E | Partly Cloudy | |
| 11pm | 52°F11°C | 3 mph5 km/h SE | Partly Cloudy | |
| April 24 | ||||
| 12am | 48°F9°C | 4 mph6 km/h S | Partly Cloudy | |
| 1am | 46°F8°C | 4 mph7 km/h SW | Mostly Cloudy | |
| 2am | 44°F7°C | 4 mph7 km/h SW | Mostly Cloudy | |
| 3am | 43°F6°C | 4 mph6 km/h S | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 23 | 28°F-2°C | 62°F17°C | 5 mph7 km/h from E | Mostly Clear | Mostly Cloudy |
| April 24 | 35°F2°C | 70°F21°C | 5 mph8 km/h from NW | Mostly Clear | Partly Cloudy |
| April 25 | 43°F6°C | 62°F17°C | 5 mph8 km/h from NW | Mostly Cloudy | Mostly Cloudy |
| April 26 | 40°F4°C | 52°F11°C | 7 mph12 km/h from N | Drizzle | Drizzle |
| April 27 | 37°F3°C | 51°F11°C | 4 mph7 km/h from NE | Drizzle | Partly Cloudy |
| April 28 | 36°F2°C | 59°F15°C | 7 mph12 km/h from W | Mostly Cloudy | Rain |
| April 29 | 37°F3°C | 55°F13°C | 8 mph12 km/h from W | Rain | Mostly Cloudy |
Yes
Low of 36°F2°C, High of 70°F21°CWind: 5 mph8 km/h
Precipitation: None