Perth experiences the worst of a cold, unsettled weather system on Saturday, according to local forecasts from multiple outlets. The day includes a chance of an isolated thunderstorm.

Both sources indicate that rain is possible, with up to 20mm forecast for the Perth area. While one outlet highlights the system’s overall unsettled conditions, neither report suggests major variations in the timing or location of the rain beyond the chance of an isolated storm.

Overall, the coverage aligns on the key impacts for Perth: cooler conditions, unstable weather, and the possibility of thunderstorms, alongside rainfall totals reaching around 20mm in the forecast period.