| Mon May 20 | Tue May 21 | Wed May 22 | Thu May 23 | |
| Tmin 18-06 |
6°C | 8°C | 10°C | 10°C |
| Tmax 06-18 |
19°C | 23°C | 17°C | 18°C |
| morning 24-06 |
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| a.m. 06-12 |
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| p.m. 12-18 |
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| evening 18-24 |
| Nearby Forecast Locations - Williamtown | Distance |
| Newcastle Nobbys | 15.2 km |
| Newcastle | 16.1 km |
| Newcastle Uni | 17.0 km |
| Maitland | 23.7 km |
| Paterson | 27.5 km |
| Forecast: Williamtown Region While the weather on Monday is still clear clouds will increase. But on Wednesday rain is to be expected. The daily high falls from 22 degrees on Tuesday to 17 degrees on Wednesday. |