Yes
you do need a jacket based on the weather in Waukesha, WI, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
55°F13°C & Clear
Wind is 1 mph2 km/h from the Northeast, gusting to 4 mph6 km/h
| July 18 | ||||
| 1am | 55°F13°C | 1 mph2 km/h Northeast | Clear | |
| 2am | 54°F12°C | 4 mph6 km/h Northwest | Clear | |
| 3am | 53°F12°C | 4 mph7 km/h North | Clear | |
| 4am | 53°F11°C | 3 mph5 km/h North | Clear | |
| 5am | 53°F11°C | 4 mph7 km/h North | Clear | |
| 6am | 52°F11°C | 4 mph7 km/h North | Clear | |
| 7am | 53°F12°C | 4 mph6 km/h North | Clear | |
| 8am | 57°F14°C | 4 mph6 km/h North | Clear | |
| 9am | 62°F17°C | 5 mph7 km/h Northeast | Clear | |
| 10am | 66°F19°C | 6 mph9 km/h East | Clear | |
| 11am | 69°F21°C | 6 mph9 km/h East | Mostly Clear | |
| 12pm | 71°F22°C | 6 mph9 km/h East | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| July 17 | 55°F13°C | 67°F19°C | 4 mph7 km/h from North | Cloudy | Clear |
| July 18 | 52°F11°C | 77°F25°C | 6 mph9 km/h from Southeast | Mostly Clear | Partly Cloudy |
| July 19 | 65°F18°C | 81°F27°C | 7 mph12 km/h from Southwest | Thunderstorms | Drizzle |
| July 20 | 63°F17°C | 77°F25°C | 9 mph15 km/h from Northeast | Partly Cloudy | Mostly Clear |
| July 21 | 62°F16°C | 77°F25°C | 10 mph16 km/h from East | Mostly Cloudy | Drizzle |
| July 22 | 67°F19°C | 83°F28°C | 6 mph10 km/h from South | Mostly Cloudy | Partly Cloudy |
| July 23 | 71°F22°C | 88°F31°C | 8 mph12 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 53°F12°C, High of 77°F25°CWind: 6 mph9 km/h
Precipitation: None