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Weather in Hornsby, Australia 🇦🇺

Current Weather in Hornsby

Extreme Fire Weather Warning for Greater Sydney Region fire district for 05 September
Sunny
27°C
Feels like 23°C. Sunny.
🌬️ 15 km/h NNW
💧 26% Humidity
🧭 1012 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 6.4
🌡️ Dew Point: 6°C
🌅 Sunrise: 06:08 AM
🌇 Sunset: 05:40 PM
Map Overlays:

As of now, Hornsby is 27°C and sunny, feeling like 23°C. The air is at 26% humidity and winds are about 15 km/h, and the UV index is 6 (high). In the days ahead, expect temperatures in Hornsby from about 11°C to 32°C. ⚠️ Extreme Fire Weather Warning for Greater Sydney Region fire district for 05 September

Hourly Forecast for Hornsby

13:00
Overcast
31°
8%
14:00
Sunny
32°
1%
15:00
Cloudy
31°
7%
16:00
Sunny
29°
1%
17:00
Thundery outbreaks in nearby
27°
9%
18:00
Thundery outbreaks in nearby
25°
10%
19:00
Clear
23°
1%
20:00
Clear
24°
1%
21:00
Clear
22°
1%
22:00
Clear
21°
1%
23:00
Cloudy
21°
9%
00:00
Clear
20°
2%
01:00
Clear
19°
1%
02:00
Clear
18°
1%
03:00
Clear
16°
1%
04:00
Clear
15°
1%
05:00
Clear
14°
1%
06:00
Clear
13°
1%
07:00
Sunny
14°
1%
08:00
Sunny
16°
1%
09:00
Sunny
17°
1%
10:00
Sunny
19°
1%
11:00
Sunny
20°
1%
12:00
Sunny
21°
0%

14-Day Forecast for Hornsby

Sat, Sep 05
Sunny Sunny
32° / 13°
Sun, Sep 06
Sunny Sunny
23° / 13°
Mon, Sep 07
Sunny Sunny
24° / 11°
Tue, Sep 08
Sunny Sunny
19° / 11°
Wed, Sep 09
Overcast Overcast
20° /
Thu, Sep 10
Sunny Sunny
18° /
Fri, Sep 11
Sunny Sunny
22° /
Sat, Sep 12
Sunny Sunny
24° / 10°
Sun, Sep 13
Sunny Sunny
23° / 13°
Mon, Sep 14
Overcast Overcast
25° / 13°
Tue, Sep 15
Sunny Sunny
28° / 13°
Wed, Sep 16
Patchy rain nearby Patchy rain nearby
17° / 13°
Thu, Sep 17
Sunny Sunny
18° / 10°
Fri, Sep 18
Sunny Sunny
20° /

Additional Forecasts for Hornsby

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 88.0 μg/m³
O₃ (Ozone) 63.0 μg/m³
NO₂ (Nitrogen Dioxide) 10.4 μg/m³
SO₂ (Sulphur Dioxide) 4.9 μg/m³
PM2.5 (Fine particles) 7.4 μg/m³
PM10 (Coarse particles) 8.8 μg/m³

Historical Weather

Weather Forecasts for Other Cities in Australia

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Best Time to Be Outside in Hornsby Today

The most comfortable window in Hornsby today looks like 15:00 to 18:00, when it is around 29°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Hornsby

What is the temperature in Hornsby right now?

The current temperature in Hornsby is 27°C (80°F), sunny (feels like 23°C).

What's the weather like in Hornsby right now?

Current weather in Hornsby: Sunny, humidity 26%, wind 15 km/h NNW.

What is today's forecast for Hornsby?

Today in Hornsby: high 32°C, low 13°C, sunny. Chance of rain: 4%.

What is the 7-day weather forecast for Hornsby?

Daily highs and lows for Hornsby:

  • 2026-09-05: 32°C / 13°C
  • 2026-09-06: 23°C / 13°C
  • 2026-09-07: 24°C / 11°C
  • 2026-09-08: 19°C / 11°C
  • 2026-09-09: 20°C / 9°C
  • 2026-09-10: 18°C / 9°C
  • 2026-09-11: 22°C / 8°C
Is it going to rain in Hornsby today?

There is a 4% chance of rain in Hornsby today.

What is the wind speed in Hornsby right now?

Wind in Hornsby is currently 15 km/h (9 mph) from the NNW.

What is the UV index in Hornsby right now?

The UV index in Hornsby is currently 6.4 (high). Sun protection is recommended when the index is 3 or higher.

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