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Current weather in Castlereagh is few clouds.

Where can I find the hourly weather forecast for Castlereagh?

This page shows hourly weather forecast for Castlereagh, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Castlereagh updated regularly?

Weather data for Castlereagh is updated regularly with the latest available observations and forecasts.

Now · 1:57 AM

Castlereagh Weather & Hourly Forecast

Australia · New South Wales · 2749

10°C

Mostly clear night

Feels like: 9°C

💧 Humidity 92% 🌡 Pressure 1025 hPa 💨 Wind 4 km/h 👁 Visibility 21.8 km ☁ Clouds 13% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Castlereagh

Today

2:00 AM

Mostly clear night

10° 💧 0.0 mm 💨 4 km/h H 92%1025 hPa

5:00 AM

Clear night

11° 💧 None 💨 13 km/h H 61%1026 hPa

8:00 AM

Sunny

12° 💧 None 💨 15 km/h H 38%1028 hPa

11:00 AM

Sunny

16° 💧 None 💨 16 km/h H 30%1028 hPa

2:00 PM

Mostly sunny

18° 💧 None 💨 16 km/h H 27%1026 hPa

5:00 PM

Mostly sunny

16° 💧 None 💨 12 km/h H 33%1027 hPa

8:00 PM

Clear night

11° 💧 None 💨 8 km/h H 58%1031 hPa

11:00 PM

Clear night

10° 💧 None 💨 10 km/h H 58%1031 hPa

Tomorrow

2:00 AM

Clear night

8° 💧 None 💨 11 km/h H 67%1031 hPa

5:00 AM

Clear night

8° 💧 None 💨 11 km/h H 59%1031 hPa

8:00 AM

Sunny

12° 💧 None 💨 12 km/h H 51%1033 hPa

11:00 AM

Sunny

17° 💧 None 💨 8 km/h H 44%1032 hPa

2:00 PM

Sunny

19° 💧 None 💨 3 km/h H 35%1029 hPa

5:00 PM

Sunny

18° 💧 None 💨 1 km/h H 43%1028 hPa

8:00 PM

Clear night

12° 💧 None 💨 3 km/h H 74%1030 hPa

11:00 PM

Clear night

10° 💧 None 💨 1 km/h H 81%1031 hPa

Today

2:00 AM

Mostly clear night

10° 💧 0.0 mm 💨 4 km/h H 92%1025 hPa

3:00 AM

Mostly clear night

9° 💧 0.0 mm 💨 6 km/h H 91%1025 hPa

4:00 AM

Mostly cloudy night

10° 💧 None 💨 10 km/h H 71%1025 hPa

5:00 AM

Clear night

11° 💧 None 💨 13 km/h H 61%1026 hPa

6:00 AM

Sunny

10° 💧 None 💨 11 km/h H 64%1027 hPa

7:00 AM

Sunny

10° 💧 None 💨 13 km/h H 49%1027 hPa

8:00 AM

Sunny

12° 💧 None 💨 15 km/h H 38%1028 hPa

9:00 AM

Sunny

13° 💧 None 💨 17 km/h H 35%1028 hPa

10:00 AM

Sunny

14° 💧 None 💨 16 km/h H 34%1028 hPa

11:00 AM

Sunny

16° 💧 None 💨 16 km/h H 30%1028 hPa

12:00 PM

Sunny

17° 💧 None 💨 16 km/h H 29%1027 hPa

1:00 PM

Sunny

17° 💧 None 💨 15 km/h H 29%1027 hPa

2:00 PM

Mostly sunny

18° 💧 None 💨 16 km/h H 27%1026 hPa

3:00 PM

Mostly cloudy

18° 💧 None 💨 16 km/h H 25%1026 hPa

4:00 PM

Sunny

17° 💧 None 💨 15 km/h H 28%1027 hPa

5:00 PM

Mostly sunny

16° 💧 None 💨 12 km/h H 33%1027 hPa

6:00 PM

Clear night

14° 💧 None 💨 11 km/h H 47%1028 hPa

7:00 PM

Clear night

12° 💧 None 💨 9 km/h H 54%1029 hPa

8:00 PM

Clear night

11° 💧 None 💨 8 km/h H 58%1031 hPa

9:00 PM

Clear night

10° 💧 None 💨 11 km/h H 57%1032 hPa

10:00 PM

Clear night

10° 💧 None 💨 11 km/h H 55%1032 hPa

11:00 PM

Clear night

10° 💧 None 💨 10 km/h H 58%1031 hPa

Tomorrow

12:00 AM

Clear night

8° 💧 None 💨 7 km/h H 65%1031 hPa

1:00 AM

Clear night

7° 💧 None 💨 7 km/h H 70%1031 hPa

2:00 AM

Clear night

8° 💧 None 💨 11 km/h H 67%1031 hPa

3:00 AM

Clear night

9° 💧 None 💨 14 km/h H 57%1031 hPa

4:00 AM

Clear night

9° 💧 None 💨 14 km/h H 57%1031 hPa

5:00 AM

Clear night

8° 💧 None 💨 11 km/h H 59%1031 hPa

6:00 AM

Mostly sunny

8° 💧 None 💨 12 km/h H 61%1032 hPa

7:00 AM

Mostly sunny

10° 💧 None 💨 14 km/h H 56%1033 hPa

8:00 AM

Sunny

12° 💧 None 💨 12 km/h H 51%1033 hPa

9:00 AM

Sunny

14° 💧 None 💨 12 km/h H 49%1033 hPa

10:00 AM

Sunny

16° 💧 None 💨 11 km/h H 46%1032 hPa

11:00 AM

Sunny

17° 💧 None 💨 8 km/h H 44%1032 hPa

12:00 PM

Sunny

17° 💧 None 💨 5 km/h H 41%1031 hPa

1:00 PM

Sunny

18° 💧 None 💨 3 km/h H 38%1030 hPa

2:00 PM

Sunny

19° 💧 None 💨 3 km/h H 35%1029 hPa

3:00 PM

Sunny

19° 💧 None 💨 3 km/h H 33%1029 hPa

4:00 PM

Sunny

19° 💧 None 💨 0 km/h H 33%1028 hPa

5:00 PM

Sunny

18° 💧 None 💨 1 km/h H 43%1028 hPa

6:00 PM

Clear night

15° 💧 None 💨 3 km/h H 55%1029 hPa

7:00 PM

Clear night

13° 💧 None 💨 6 km/h H 65%1030 hPa

8:00 PM

Clear night

12° 💧 None 💨 3 km/h H 74%1030 hPa

9:00 PM

Clear night

12° 💧 None 💨 4 km/h H 78%1031 hPa

10:00 PM

Clear night

11° 💧 None 💨 2 km/h H 80%1031 hPa

11:00 PM

Clear night

10° 💧 None 💨 1 km/h H 81%1031 hPa

Friday

12:00 AM

Clear night

9° 💧 None 💨 1 km/h H 85%1030 hPa

1:00 AM

Clear night

8° 💧 None 💨 1 km/h H 90%1030 hPa

2:00 AM

Clear night

8° 💧 None 💨 1 km/h H 92%1029 hPa

3:00 AM

Clear night

7° 💧 None 💨 2 km/h H 92%1028 hPa

4:00 AM

Clear night

6° 💧 None 💨 1 km/h H 98%1028 hPa

5:00 AM

Mist at night

6° 💧 None 💨 1 km/h H 99%1028 hPa

6:00 AM

Mist

5° 💧 None 💨 1 km/h H 99%1029 hPa

7:00 AM

Partly cloudy

8° 💧 None 💨 1 km/h H 93%1029 hPa

8:00 AM

Sunny

11° 💧 None 💨 1 km/h H 79%1030 hPa

9:00 AM

Sunny

14° 💧 None 💨 3 km/h H 66%1029 hPa

10:00 AM

Sunny

17° 💧 None 💨 3 km/h H 53%1028 hPa

7:00 PM

Partly cloudy night

19° 💧 None 💨 7 km/h H 48%1024 hPa

10:00 PM

Partly cloudy night

13° 💧 None 💨 3 km/h H 65%1025 hPa

Saturday

1:00 AM

Partly cloudy night

9° 💧 None 💨 4 km/h H 78%1025 hPa

4:00 AM

Mostly clear night

8° 💧 None 💨 1 km/h H 87%1024 hPa

7:00 AM

Sunny

8° 💧 None 💨 4 km/h H 84%1025 hPa

10:00 AM

Sunny

19° 💧 None 💨 7 km/h H 38%1024 hPa

1:00 PM

Sunny

28° 💧 None 💨 2 km/h H 21%1022 hPa

4:00 PM

Sunny

29° 💧 None 💨 10 km/h H 15%1020 hPa

7:00 PM

Clear night

21° 💧 None 💨 7 km/h H 39%1022 hPa

10:00 PM

Clear night

16° 💧 None 💨 3 km/h H 59%1024 hPa

Sunday

1:00 AM

Clear night

13° 💧 None 💨 3 km/h H 76%1023 hPa

4:00 AM

Clear night

11° 💧 None 💨 1 km/h H 86%1022 hPa

7:00 AM

Sunny

12° 💧 None 💨 1 km/h H 79%1022 hPa

10:00 AM

Sunny

22° 💧 None 💨 1 km/h H 41%1021 hPa

1:00 PM

Sunny

29° 💧 None 💨 3 km/h H 26%1016 hPa

4:00 PM

Sunny

31° 💧 None 💨 7 km/h H 21%1015 hPa

7:00 PM

Clear night

22° 💧 None 💨 11 km/h H 32%1017 hPa

10:00 PM

Clear night

17° 💧 None 💨 3 km/h H 53%1018 hPa

Monday

1:00 AM

Clear night

16° 💧 None 💨 3 km/h H 47%1016 hPa

4:00 AM

Clear night

15° 💧 None 💨 2 km/h H 45%1015 hPa

7:00 AM

Sunny

15° 💧 None 💨 13 km/h H 51%1018 hPa

10:00 AM

Sunny

23° 💧 None 💨 10 km/h H 52%1020 hPa

1:00 PM

Mostly sunny

25° 💧 None 💨 10 km/h H 44%1018 hPa

4:00 PM

Mostly sunny

22° 💧 None 💨 12 km/h H 55%1017 hPa

10:00 PM

Mostly clear night

23° 💧 None 💨 12 km/h H 54%1016 hPa

Tuesday

4:00 AM

Mostly cloudy night

17° 💧 None 💨 7 km/h H 82%1021 hPa

10:00 AM

Partly cloudy

16° 💧 None 💨 7 km/h H 83%1021 hPa

4:00 PM

Overcast

17° 💧 None 💨 12 km/h H 71%1026 hPa

10:00 PM

Overcast night

17° 💧 None 💨 12 km/h H 63%1026 hPa

Wednesday

4:00 AM

Overcast night

14° 💧 None 💨 7 km/h H 78%1030 hPa

10:00 AM

Light rain

14° 💧 None 💨 6 km/h H 84%1029 hPa

4:00 PM

Light rain

15° 💧 None 💨 6 km/h H 91%1031 hPa

10:00 PM

Overcast night

18° 💧 None 💨 11 km/h H 73%1028 hPa

Thursday

4:00 AM

Mostly cloudy night

16° 💧 None 💨 2 km/h H 92%1030 hPa

10:00 AM

Overcast

15° 💧 None 💨 3 km/h H 97%1028 hPa

4:00 PM

Overcast

19° 💧 None 💨 5 km/h H 73%1029 hPa

10:00 PM

Light rain

24° 💧 None 💨 6 km/h H 54%1024 hPa

Friday

4:00 AM

Mostly clear night

16° 💧 None 💨 7 km/h H 83%1028 hPa

10:00 AM

Mostly sunny

13° 💧 None 💨 1 km/h H 94%1026 hPa

4:00 PM

Mostly sunny

19° 💧 None 💨 3 km/h H 71%1027 hPa

10:00 PM

Light rain

22° 💧 None 💨 13 km/h H 68%1022 hPa

Saturday

4:00 AM

Partly cloudy night

16° 💧 None 💨 1 km/h H 96%1025 hPa

10:00 AM

Overcast

14° 💧 None 💨 2 km/h H 100%1023 hPa

4:00 PM

Sunny

21° 💧 None 💨 3 km/h H 71%1024 hPa

10:00 PM

Mostly clear night

29° 💧 None 💨 9 km/h H 30%1019 hPa

Sunday

4:00 AM

Clear night

19° 💧 None 💨 1 km/h H 69%1022 hPa

10:00 AM

Partly cloudy

16° 💧 None 💨 11 km/h H 85%1026 hPa

4:00 PM

Overcast

18° 💧 None 💨 8 km/h H 66%1029 hPa

10:00 PM

Overcast night

19° 💧 None 💨 8 km/h H 60%1025 hPa

Monday

4:00 AM

Overcast night

15° 💧 None 💨 7 km/h H 93%1027 hPa

10:00 AM

Light rain

13° 💧 None 💨 6 km/h H 97%1023 hPa

4:00 PM

Light rain

18° 💧 None 💨 9 km/h H 75%1026 hPa

10:00 PM

Mostly cloudy night

19° 💧 None 💨 20 km/h H 57%1025 hPa

Tuesday

4:00 AM

Mostly cloudy night

15° 💧 None 💨 10 km/h H 81%1028 hPa

10:00 AM

Light rain

13° 💧 None 💨 10 km/h H 91%1028 hPa

4:00 PM

Overcast

16° 💧 None 💨 16 km/h H 61%1031 hPa

10:00 PM

Mostly clear night

17° 💧 None 💨 18 km/h H 53%1029 hPa

Wednesday

4:00 AM

Moderate rain

11° 💧 None 💨 9 km/h H 93%1033 hPa

10:00 AM

Mostly sunny

10° 💧 None 💨 11 km/h H 90%1032 hPa

4:00 PM

Mostly sunny

16° 💧 None 💨 14 km/h H 54%1033 hPa

In Castlereagh and, more broadly, across New South Wales: This morning will be mostly sunny with a few clouds, and temperatures will remain cool, ranging from 8 degrees Celsius to 14 degrees Celsius. Light southeast winds are expected, with maximum speeds around 14 km/h and gusts reaching up to 33 km/h. The weather is expected to stay dry throughout the day, with no precipitation forecast. During the afternoon, the sky should remain mostly clear, maintaining the cool temperatures. Winds may pick up slightly but will generally remain light. Overall, it looks like a calm and clear day, ideal for outdoor activities.

15-Day Weather Outlook for Castlereagh

TomorrowTomorrow

Mostly sunny 19°/7° 💧 None 💨 14 km/h

Friday, Sep 18Fri Sep 18

Partly cloudy 19°/5° 💧 0.1 mm 💨 7 km/h

Saturday, Sep 19Sat Sep 19

Partly cloudy 29°/8° 💧 None 💨 10 km/h

Sunday, Sep 20Sun Sep 20

Sunny 31°/11° 💧 0.0 mm 💨 11 km/h

Monday, Sep 21Mon Sep 21

Mostly sunny 25°/15° 💧 0.1 mm 💨 13 km/h

Tuesday, Sep 22Tue Sep 22

Overcast 17°/16° 💧 2.3 mm 💨 12 km/h

Wednesday, Sep 23Wed Sep 23

Light rain 18°/14° 💧 5.3 mm 💨 11 km/h

Thursday, Sep 24Thu Sep 24

Light rain 24°/15° 💧 1.5 mm 💨 6 km/h

Friday, Sep 25Fri Sep 25

Light rain 22°/13° 💧 0.9 mm 💨 13 km/h

Saturday, Sep 26Sat Sep 26

Overcast 29°/14° 💧 0.2 mm 💨 9 km/h

Sunday, Sep 27Sun Sep 27

Overcast 19°/16° 💧 0.1 mm 💨 11 km/h

Monday, Sep 28Mon Sep 28

Light rain 19°/13° 💧 3.1 mm 💨 20 km/h

Tuesday, Sep 29Tue Sep 29

Light rain 17°/13° 💧 1.5 mm 💨 18 km/h

Wednesday, Sep 30Wed Sep 30

Moderate rain 16°/10° 💧 5.1 mm 💨 14 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Castlereagh

Vertical axis: °C · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Castlereagh

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 2:00 AM

PM2.5 Fine particles Good 0,6µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 0,9µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 56,5µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,6µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Castlereagh

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,1High 😊Good

Tomorrow UV 6,7High 🙂Fair

Friday UV 8,0Very high 🙂Fair

Saturday UV 9,0Very high 🙂Fair

Sunday UV 9,0Very high 😊Good

Monday UV 8,0Very high —Unavailable

Tuesday UV 4,0Moderate —Unavailable

Hourly UV index today

7:00 AMUV 0,4 8:00 AMUV 1,3 9:00 AMUV 2,9 10:00 AMUV 5,0 11:00 AMUV 6,6 12:00 PMUV 7,1 1:00 PMUV 6,4 2:00 PMUV 4,8 3:00 PMUV 2,8 4:00 PMUV 1,2 5:00 PMUV 0,3 6:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Castlereagh

Vertical axis: km/h · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · CASTLEREAGH, NEW SOUTH WALES

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

96/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 7:11 PM–4:32 AM

☁ Cloud cover 6% Real hourly forecast for the best viewing hour.

☾ Moonlight 17% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 13° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min31%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Castlereagh were last refreshed today at 1:57 AM. The current forecast period extends through 17/09/2026 at 11:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.