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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australian Insight Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Blacktown’s most reliable weather runs from late September to early November and then again from March through May, when daytime highs sit in the low twenties and humidity stays low. Pack a light jacket for cooler evenings, plus sun protection, because UV levels can catch you out even in spring. For value timing, avoid the peak January school-holiday heat, and instead book in late autumn or early spring for milder conditions and fewer crowds.
What is the best season to visit Blacktown?
Spring (September–November) and autumn (March–May) are the sweet spots. In spring you get blooming parks and comfortable temperatures for exploring the Western Sydney Parklands, while autumn offers crisp mornings and warm afternoons perfect for outdoor events. Summer (December–February) can push past 35°C, and winter (June–August) often sees overnight lows around 4°C, with frost possible in the outer suburbs.
What should I pack for a trip to Blacktown?
Layers are your friend. For warmer months bring light cotton clothing, a wide-brimmed hat, and reusable water bottle – Blacktown’s urban heat island effect makes afternoons feel hotter than the forecast. In winter add a fleece or medium-weight coat, especially if you’re heading out early or staying late. A compact umbrella is useful year-round, although summer storms (like those visible on the weather in Blacktown radar) tend to be short and sharp.
How does Blacktown compare to coastal Sydney?
Blacktown sits about 35 kilometres inland, so it runs 2–3°C hotter in summer and cooler in winter than the Sydney CBD. The weather in Blacktown tomorrow often shows a bigger temperature swing than at the coast, especially overnight.
What’s the best way to check hourly conditions?
For a quick Blacktown weather hourly rundown, combine the live forecast above with the Blacktown weather radar from the Bureau of Meteorology. This helps you spot incoming showers or storms, particularly during February and March.
Can I get a long-range outlook for Blacktown?
Both the weather Blacktown 14 days and BOM’s Blacktown weather 30 days outlooks are available through the sources below. For planning a trip, the 14-day trend is usually reliable; the 30-day forecast gives a general pattern rather than exact temperatures.
For broader New South Wales conditions, see our Sydney Weather page, or browse the Australia weather hub for other destinations. If you’re planning outdoor activities, check the weather in Blacktown 10 days and always stay alert for any severe weather warnings that may pop up during summer storms.