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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Brief Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Narellan Vale is seeing a mild, partly cloudy day with the live forecast above showing a gentle afternoon shift. No significant rain is expected, making it a fine day for outdoor plans in the Macarthur region.
What is the outlook for today and tomorrow?
The next 48 hours will remain dry and settled under a weak high-pressure system. Overnight temperatures will drop into the single digits, so a jacket may be needed for early mornings.
- Today: partly cloudy, light north-easterly breeze, top around the figure shown in the live forecast above.
- Tonight: mostly clear, calm, low near 8°C.
- Tomorrow: sun increasing, light winds, similar daytime temperature.
What about the longer stretch – weather in Narellan 10 days?
A high-pressure ridge will keep conditions mostly dry through the week, with a possible weak trough arriving around day 7–8, bringing a slight shower chance. Daytime highs will hover near the current mild level, and nights will remain cool. Check the 10-day forecast for daily updates.
Will it rain this weekend?
Rain is unlikely this weekend. The high-pressure system will keep skies mostly sunny with only a tiny chance of a brief sprinkle late Sunday. You can plan outdoor activities without much worry.
When is the best time to be outside?
Mid-morning to early afternoon offers the warmest conditions, but UV will be moderate. Wear sunscreen and a hat if out between 11am and 3pm. The breeze stays light, making it comfortable.
How does Narellan Vale’s weather compare to Sydney?
Narellan Vale is typically 2–3°C cooler than coastal Sydney due to its inland position, especially overnight. Winds are lighter and humidity lower, so the “feels like” temperature often feels fresher.
Sources
For broader conditions across the state, visit the Australia weather hub or the dedicated Sydney Weather page.