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January 9th, 2026 :: 5:21 am GMT   

Local Weather Report for
Castlereagh
Northern Ireland, United Kingdom

 Current Castlereagh Weather Conditions Updated January 9th at 3:50 am 
Overcast
Temperature:4°C Dew Point:2°C
Barometer:99.8 kPa Wind:N 17 Km/h
Humidity:86.8% Visibility:n/a
 
 Castlereagh Weather Forecast Summary  
 
Today
Jan 9th
Saturday
Jan 10th
Sunday
Jan 11th
Monday
Jan 12th
Tuesday
Jan 13th
Cloudy Cloudy Showers Cloudy Cloudy
6°C
8°C
5°C
12°C
7°C
10°C
10°C
11°C
6°C
 
 Castlereagh Detailed Weather Forecast  
 
Friday, January 9th, 2026
Morning Temperature: 6°C
Cloudy with a chance of showers. Windy.
Afternoon Temperature: 6°C
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 6°C
A mix of cloudy and clear skies with a chance of showers. Windy at times.
Saturday, January 10th, 2026
Overnight Temperature: 5°C
Clear with cloudy periods. Windy at times.
Morning Temperature: 5°C
Cloudy.
Afternoon Temperature: 6°C
A mix of cloud and sun.
Evening Temperature: 7°C
Cloudy. Wind 30 to 50 km/h.
Sunday, January 11th, 2026
Overnight Temperature: 8°C
Cloudy. Wind 50 to 70 km/h.
Morning Temperature: 8°C
Cloudy with showers likely. Wind 50 to 70 km/h.
Afternoon Temperature: 9°C
Cloudy with a few showers. Wind 60 to 80 km/h.
Evening Temperature: 11°C
Cloudy with showers likely. Wind 40 to 60 km/h.
Monday, January 12th, 2026
Overnight Temperature: 10°C
Cloudy. Wind 30 to 50 km/h.
Morning Temperature: 10°C
Sunny with cloudy periods with a slight chance of showers. Wind 40 to 60 km/h.
Afternoon Temperature: 10°C
Cloudy. Wind 50 to 70 km/h.
Evening Temperature: 10°C
Cloudy. Wind 40 to 60 km/h.
Tuesday, January 13th, 2026
Overnight Temperature: 10°C
Cloudy with a chance of showers. Slight chance of a thunderstorm. Wind 40 to 60 km/h.
Morning Temperature: 9°C
Cloudy with a chance of showers. Wind 30 to 50 km/h.
Afternoon Temperature: 8°C
Cloudy. Windy.
Evening Temperature: 7°C
Cloudy. Windy.
Wednesday, January 14th, 2026
Overnight Temperature: 6°C
Cloudy. Wind 30 to 50 km/h.
Morning Temperature: 7°C
Cloudy with showers likely. Wind 40 to 60 km/h.
Afternoon Temperature: 9°C
Cloudy with a chance of showers. Wind 30 to 50 km/h.
Evening Temperature: 8°C
Cloudy. Windy.
Thursday, January 15th, 2026
Overnight Temperature: 7°C
Cloudy. Windy at times.
Morning Temperature: 7°C
Cloudy with a chance of showers. Windy.
Afternoon Temperature: 6°C
Cloudy with a slight chance of showers. Windy.
Evening Temperature: 6°C
Clear with cloudy periods. Windy.
Friday, January 16th, 2026
Overnight Temperature: 7°C
Cloudy with a chance of showers. Windy.
Morning Temperature: 7°C
Cloudy with showers likely. Windy at times.
Afternoon Temperature: 8°C
Cloudy with showers likely. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 8°C
Cloudy with showers likely. Windy at times.





 

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Greenisland, NI 
3:50 AM  4°C
Overcast
 
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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