15-Day Weather Forecast - Newcastle
15-day weather forecast for Newcastle: temperatures from 11°C (52°F) to 30°C (86°F). Average daily high 22°C (72°F) over the next 15 days.
Hourly Forecast by Day
15-Day Temperature Trend
15-Day Weather Forecast
Updated just nowWeather Insight
Newcastle's 15-day outlook ranges from a low of 11°C to a high of 30°C, with an average daytime high near 22°C. That's 2° above the long-term average high of 20°C for this time of year. It continues a recent pattern — 20 of the last 28 days with published data have run warmer than normal. Air quality is currently Moderate (AQI 70), driven mainly by PM2.5 at 23 μg/m³.
Today vs Normal
The long-term average high for today is 20°C.
20 of the last 28 days with published data ran above normal.
That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Extended Outlook for Newcastle
Over the next 15 days, Newcastle is forecast to see temperatures ranging from 10°C to 30°C, averaging a daily high of 22°C. The extended outlook indicates occasional showers on 6 days, with 4 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.