See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
14°
Mostly Cloudy
Feels Like: 14°
Min: 12°
Max: 15°
The next few hours will be mostly cloudy, with today reaching 15°C and dropping to 11°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:07
Sunrise
19:27
Sunset
Moon
Waxing Crescent
14:03
Moonrise
20:42
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
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Weather in Castlereagh today, September 16, 2026
Expect unsettled, showery conditions in Castlereagh on September 16, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. The first half of the day looks overcast, as cloud amounts reach about 98% around 11:00. Brighter weather, if it comes, waits until later.
The temperature range runs from about 12°C up to 15°C. Relative humidity sits between 71% and 91%, reaching its peak around 22:00. A lighter breeze peaks around 22:00 near 6.4 km/h.
Expect the wet theme to continue later, as rain odds reach 96% near 23:00. Cloud amounts hold near 100% around 12:00. Visibility stays generally good near 30.3 km on average, though it can drop toward 20.1 km in thicker cloud or showers. Daylight runs from 07:07 to 19:27, lasting 12 hours 20 minutes of sunlight today.
Overall, Castlereagh on September 16, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 96% and the high sits around 15°C.
Frequently asked questions about weather in Castlereagh
How warm does it get in Castlereagh?
The warmest month in Castlereagh is July, with average high temperatures of 18°C. The average temperature during this period is around 15°C.
How cold does it get in Castlereagh?
The coldest month in Castlereagh is January, with average low temperatures of 4°C. The average temperature during this period is around 6°C.
What is the wettest time of year in Castlereagh?
The wettest month in Castlereagh is August, with an average of 95mm of precipitation.
What is the driest time of year in Castlereagh?
The driest month in Castlereagh is April, with an average of 61mm of precipitation.
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