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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie Briefly Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Check the live forecast above for Kellyville’s current conditions, then plan for a mild morning followed by afternoon showers. The hills of Sydney’s north-west often see a few degrees’ difference from the coast, so keep a jacket handy if you’re heading out early.
What’s the outlook for the next few days in Kellyville?
The live forecast above shows the immediate trend, but for a broader picture the weather in Kellyville over the next 10 days suggests a mix of sun and cloud, with a possible southerly change midweek. Overnight temperatures can drop a few degrees below the city’s, so mornings may feel crisp. Check the weather in Kellyville tomorrow for any shift in the afternoon breeze from the Nepean direction.
How accurate are longer-range forecasts for Kellyville?
Beyond a week, models become less reliable for this inland suburb, which sits near the Cumberland Plain. The Kellyville weather 14 day outlook can show a general pattern, but the Kellyville weather 28 day forecast should be taken as a broad guide rather than a firm plan. Always cross-check with the live updates above.
Does Kellyville get much fog in winter?
Yes, particularly on calm mornings. Because Kellyville sits further inland on the Cumberland Plain, radiational fog can form overnight and linger until mid-morning. This often clears by late morning, but can reduce visibility for the commute.
Is the wind different here compared to Sydney CBD?
Generally, yes. Kellyville is shielded from coastal sea breezes. Winds tend to be lighter and more variable, though a strong westerly can funnel down from the Blue Mountains. This can make summer afternoons feel hotter than at the coast.
How does storm risk compare for Kellyville?
Kellyville is in a part of Sydney’s north-west that sees occasional severe thunderstorms, often in spring and summer. These can bring heavy rain and hail. Always watch the live updates above and check the Severe Weather Warning page when storms are forecast.