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Blackheath Weather

Next 48hrs in Katoomba

Wed 29
9:00pm
Mostly clear23°CMostly clear
Rain: 15% (0.0mm/hr) 
Humidity: 71%
Wind:  NNW 10km/h 
Thu 30
12:00am
Mostly clear22°CMostly clear
Rain: 18% (0.0mm/hr) 
Humidity: 72%
Wind:  NNW 13km/h 
Thu 30
3:00am
Mostly cloudy21°CMostly cloudy
Rain: 14% (0.1mm/hr) 
Humidity: 70%
Wind:  NNW 14km/h 
Thu 30
6:00am
Slight chance shower20°CPossible shower
Rain: 36% (0.2mm/hr) 
Humidity: 76%
Wind:  NW 14km/h 
Thu 30
9:00am
Shower18°CShower
Rain: 79% (0.5mm/hr) 
Humidity: 88%
Wind:  WNW 10km/h 
Thu 30
12:00pm
Heavy rain19°CHeavy rain
Rain: 88% (1.4mm/hr) 
Humidity: 95%
Wind:  SSW 5km/h 
Thu 30
3:00pm
Heavy rain16°CHeavy rain
Rain: 81% (2.5mm/hr) 
Humidity: 97%
Wind:  S 8km/h 
Thu 30
6:00pm
Intermittent rain12°CPossible shower
Rain: 68% (1.0mm/hr) 
Humidity: 96%
Wind:  SSW 12km/h 
Thu 30
9:00pm
Slight chance shower11°CPossible shower
Rain: 38% (0.2mm/hr) 
Humidity: 94%
Wind:  SSW 15km/h 
Fri 31
12:00am
Mostly cloudy10°CMostly cloudy
Rain: 15% (0.0mm/hr) 
Humidity: 89%
Wind:  SSW 17km/h 
Fri 31
3:00am
Mostly clear9°CMostly clear
Rain: 23% (0.0mm/hr) 
Humidity: 85%
Wind:  S 16km/h 
Fri 31
6:00am
Mostly clear8°CMostly clear
Rain: 20% (0.0mm/hr) 
Humidity: 83%
Wind:  SSW 14km/h 
Fri 31
9:00am
Mostly clear9°CMostly clear
Rain: 21% (0.2mm/hr) 
Humidity: 84%
Wind:  S 13km/h 
Fri 31
12:00pm
Mostly clear15°CMostly clear
Rain: 10% (0.0mm/hr) 
Humidity: 72%
Wind:  S 12km/h 
Fri 31
3:00pm
Mostly clear17°CMostly clear
Rain: 20% (0.1mm/hr) 
Humidity: 64%
Wind:  SSE 11km/h 
Fri 31
6:00pm
Mostly clear14°CMostly clear
Rain: 19% (0.1mm/hr) 
Humidity: 72%
Wind:  SSE 10km/h 
What is Opticast?

Opticast is an automated forecasting system designed to produce detailed forecasts for specific times of each day. The system works by taking forecasts from a range of computer models and comparing them with past observations to produce the most accurate possible forecast possible, tailored to a specific location where weather observations are taken.

Opticast allows you to 'drill-down' into the daily forecast, giving you a more exact idea of your local conditions at particular times of interest to you. For example, if you cycle to work you are likely to be most interested in the temperature, wind and chance of rain at 6am and 9pm. Or if you're organising an afternoon party and the daily forecast is for late thunder, you'll want to know what time the bad weather is likely to arrive.

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