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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie Pulse Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Based on the live forecast above, St Marys is experiencing typical conditions for this time of year. The temperature and any precipitation shown give a reliable snapshot for now, helping you plan outdoor activities or travel in western Sydney.
What weather patterns define St Marys?
St Marys sits in a temperate climate zone, with warm summers and mild winters. The area can see afternoon sea breezes and occasional thunderstorms from November to March. For detailed tracking, the bom weather st marys page offers official observations, while the st marys weather radar shows approaching rain bands.
How do I get a short-term or long-term outlook?
For the next few hours, check the st marys weather hourly forecast. If planning a week ahead, the st marys weather 14 day outlook gives a useful trend, though confidence drops beyond day 7. The st marys weather tomorrow and weather in saint marys nsw 10 days pages are also handy for specific trip planning. For conditions closer to nearby suburbs, north st marys weather may differ slightly due to elevation or local winds.
Does St Marys get much rain?
Annual rainfall averages around 800 mm, with most falling between October and March. Winter months are generally drier, though fronts can bring steady drizzle.
How reliable are the 14‑day forecasts for St Marys?
Beyond 7 days, forecasts become less accurate. Use the 14‑day view as a trend guide, not a day‑by‑day certainty. Always check the Severe Weather Warning page if storms are forecast.
Is the weather much different in North St Marys?
North St Marys is only a few kilometres away, so conditions are very similar. Minor differences can occur due to local terrain, but general forecasts apply across the suburb.
For broader coverage, visit the Australia weather hub or check Sydney Weather for regional context.