Today's Weather Forecast - Newcastle

Today's weather in Newcastle. high 20°C (68°F), low 12°C (54°F). Sunny.

Today’s Hourly Weather Outlook

Morning6 AM – Noon16°
Wind speed
6 km/h
Rain probability
12%
AfternoonNoon – 6 PM19°
Wind speed
18 km/h
Rain probability
71%
Evening6 PM – Midn17°
Wind speed
19 km/h
Rain probability
22%
NightMidn – 6 AM14°
Wind speed
6 km/h
Rain probability
0%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 5:26 AM
Total Daylight
Before sunriseSolar noon 11:49 AM
Sunset
Dusk 6:12 PM
RemainingBefore sunrise
Solar elevation-49°
vs yesterday+3 min

Air Quality Index & Health Advice

Air Quality Index

Air quality level
Moderate
Dominant pollutant
Dominant: PM2.5
Monitoring station
Newcastle Lower Hunter
PM2.5
55μg/m³
PM10
28μg/m³
O₃
2.1ppb
NO₂
21ppb
SO₂
0.1ppb
CO
4.5ppm
0Good → Hazardous300+

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Newcastle is forecast to reach a high of 20°C today, with an overnight low around 12°C. Expect a high chance of rain (71% probability) and a gentle breeze averaging 19 km/h. Air quality is currently Moderate (AQI 70), driven mainly by PM2.5 at 23 μg/m³.

Today vs Normal

20°C0° below 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.

2026-08-28: 20°C20°2026-08-29: 18°C18°2026-08-30: 19°C19°2026-08-31: 20°C20°2026-09-01: 23°C23°2026-09-02: 25°C25°2026-09-03: 25°C25°2026-09-04: 22°C22°2026-09-05: 27°C27°2026-09-06: 22°C22°2026-09-07: 21°C21°2026-09-08: 17°C17°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.