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January 5th, 2026 :: 9:12 am GMT   

Local Weather Report for
Castlereagh
Northern Ireland, United Kingdom

 Current Castlereagh Weather Conditions Updated January 5th at 7:50 am 
Mostly Sunny
Temperature:2°C Dew Point:-2°C
Barometer:101.6 kPa Wind:N 21 Km/h
Humidity:74.7% Visibility:n/a
 
 Castlereagh Weather Forecast Summary  
 
Today
Jan 5th
Tuesday
Jan 6th
Wednesday
Jan 7th
Thursday
Jan 8th
Friday
Jan 9th
Cloudy Mix of rain and snow Cloudy Showers Cloudy
6°C
7°C
3°C
7°C
4°C
7°C
5°C
6°C
4°C
 
 Castlereagh Detailed Weather Forecast  
 
Monday, January 5th, 2026
Morning Temperature: 5°C
Sunny with cloudy periods with a chance of showers. Wind 30 to 50 km/h.
Afternoon Temperature: 4°C
A mix of sun and cloud with a chance of showers. Windy.
Evening Temperature: 4°C
Cloudy with a slight chance of showers. Showers possibly mixed with wet flurries. Windy.
Tuesday, January 6th, 2026
Overnight Temperature: 4°C
Cloudy with showers likely. Showers possibly mixed with wet flurries. Windy.
Morning Temperature: 5°C
Cloudy. Wind 30 to 50 km/h.
Afternoon Temperature: 6°C
Sunny with a chance of showers. Wind 30 to 50 km/h.
Evening Temperature: 7°C
Clear with cloudy periods with showers likely. Wind 40 to 60 km/h.
Wednesday, January 7th, 2026
Overnight Temperature: 6°C
A mix of cloudy and clear skies with a chance of showers. Wind 30 to 50 km/h.
Morning Temperature: 5°C
Cloudy. Windy at times.
Afternoon Temperature: 4°C
Cloudy with a chance of showers. Showers possibly mixed with wet flurries. Windy.
Evening Temperature: 6°C
Cloudy with a chance of showers. Windy.
Thursday, January 8th, 2026
Overnight Temperature: 6°C
Cloudy. Wind 30 to 50 km/h.
Morning Temperature: 5°C
Cloudy. Windy.
Afternoon Temperature: 5°C
Cloudy with a slight chance of showers.
Evening Temperature: 5°C
Cloudy with showers likely. Wind 30 to 50 km/h.
Friday, January 9th, 2026
Overnight Temperature: 5°C
Cloudy with a chance of showers. Wind 50 to 70 km/h.
Morning Temperature: 6°C
Cloudy. Wind 50 to 70 km/h.
Afternoon Temperature: 5°C
Sunny. Windy.
Evening Temperature: 4°C
Mostly clear. Windy.
Saturday, January 10th, 2026
Overnight Temperature: 4°C
Cloudy. Windy.
Morning Temperature: 6°C
Cloudy with a few showers. Wind 30 to 50 km/h.
Afternoon Temperature: 8°C
Cloudy with showers likely. Windy.
Evening Temperature: 9°C
Cloudy with a few showers. Wind 30 to 50 km/h.
Sunday, January 11th, 2026
Overnight Temperature: 11°C
Cloudy with a few showers. Wind 30 to 50 km/h.
Morning Temperature: 9°C
Cloudy with a chance of showers. Wind 30 to 50 km/h.
Afternoon Temperature: 9°C
Sunny with cloudy periods. Wind 50 to 70 km/h.
Evening Temperature: 6°C
Cloudy. Wind 40 to 60 km/h.
Monday, January 12th, 2026
Overnight Temperature: 5°C
Cloudy. Windy.
Morning Temperature: 6°C
Cloudy. Wind 50 to 70 km/h.
Afternoon Temperature: 7°C
Sunny. Wind 30 to 50 km/h.
Evening Temperature: 7°C
Cloudy. Wind 30 to 50 km/h.
Tuesday, January 13th, 2026
Overnight Temperature: 6°C
Cloudy. Windy.
Morning Temperature: 5°C
Cloudy. Windy at times.
Afternoon Temperature: 6°C
A mix of sun and cloud.
Evening Temperature: 6°C
Cloudy. Windy at times.





 

  [ Local Weather Report ]
Carryduff, NI 
 
Holywood, NI 
7:50 AM  2°C
Mostly Sunny
 
Comber, NI 
 
Newtownabbey, NI 
7:50 AM  2°C
Mostly Sunny
 
Ballygowan, NI 
 
Lisburn, NI 
 
Saintfield, NI 
 
Newtownards, NI 
 
Greenisland, NI 
7:50 AM  2°C
Mostly Sunny
 
Hillsborough, NI 

 
This WeatherCity Weather Forecast for Castlereagh, Northern Ireland, United Kingdom is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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