No
you don't need a jacket based on the weather in Janesville, WI, USA 19 minutes ago
83°F28°C & Mostly Clear
Wind is 1 mph1 km/h from the Southeast, gusting to 2 mph3 km/h
| September 18 | ||||
| 4pm | 83°F29°C | 2 mph2 km/h East | Clear | |
| 5pm | 84°F29°C | 3 mph5 km/h East | Clear | |
| 6pm | 83°F28°C | 3 mph5 km/h East | Clear | |
| 7pm | 80°F27°C | 4 mph6 km/h East | Clear | |
| 8pm | 76°F24°C | 5 mph9 km/h East | Clear | |
| 9pm | 73°F23°C | 8 mph12 km/h East | Mostly Clear | |
| 10pm | 70°F21°C | 8 mph13 km/h East | Mostly Clear | |
| 11pm | 68°F20°C | 8 mph13 km/h East | Mostly Clear | |
| September 19 | ||||
| 12am | 66°F19°C | 8 mph13 km/h East | Mostly Clear | |
| 1am | 65°F18°C | 8 mph13 km/h East | Partly Cloudy | |
| 2am | 64°F18°C | 6 mph10 km/h East | Partly Cloudy | |
| 3am | 63°F17°C | 6 mph10 km/h East | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 58°F15°C | 84°F29°C | 2 mph4 km/h from Southeast | Mostly Clear | Partly Cloudy |
| September 19 | 62°F17°C | 79°F26°C | 6 mph10 km/h from Southeast | Mostly Cloudy | Rain |
| September 20 | 62°F16°C | 74°F23°C | 7 mph11 km/h from South | Thunderstorms | Drizzle |
| September 21 | 60°F16°C | 75°F24°C | 7 mph12 km/h from Southwest | Drizzle | Drizzle |
| September 22 | 60°F15°C | 73°F23°C | 5 mph8 km/h from Southwest | Rain | Rain |
| September 23 | 59°F15°C | 73°F23°C | 6 mph10 km/h from East | Rain | Rain |
| September 24 | 59°F15°C | 71°F22°C | 10 mph17 km/h from Northeast | Drizzle | Rain |
No
Low of 62°F17°C, High of 80°F27°CWind: 6 mph10 km/h
Precipitation: 21% rain