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  3. Castlewellan, GB

Castlewellan Weather Today

Temperature, Feels Like, Rain Chance & Hourly Forecast in Castlewellan

Castlewellan temperature today is 16°, feels like 16°, with a humidity level of 90% and wind at 25.42 km/h. Rain chance today is 0%. Use the hourly forecast and 5-day outlook below to plan your day.

Tomorrow in Castlewellan: expect a high of 12° and a low of 8°, with broken clouds. Rain chance tomorrow is 100%.

overcast clouds
16°
overcast clouds
H: 16° L: 16°
Feels like 16°
AQI: Good (1/5)
Castlewellan
Weather Updated Oct 5, 2026 1:06 PM
Humidity
90%
Dew 15°
Wind speed
25.42 km/h
WSW · G48.35
Pressure
1019 hPa
Visibility
10 km
High Winds
Wind speed is 25.42 km/h. Secure loose objects.
High Humidity
Humidity is 90%. May feel uncomfortable.
Weather Summary
Currently in Castlewellan, expect varied conditions with mild temperatures around 16°. Winds are strong winds. High humidity may make it feel uncomfortable.
Mon
light rain
17° 14°
99%
Tue
broken clouds
12° 8°
100%
Wed
light rain
11° 5°
38%
Thu
overcast clouds
11° 5°
100%
Fri
overcast clouds
14° 9°
100%
Daily Weather Forecast
Monday
10/05/2026
light rain
14°
17°
99%
Tuesday
10/06/2026
broken clouds
8°
12°
100%
Wednesday
10/07/2026
light rain
5°
11°
38%
Thursday
10/08/2026
overcast clouds
5°
11°
100%
Friday
10/09/2026
overcast clouds
9°
14°
100%
Precipitation Probability
0%
10
0%
13
39%
16
99%
19
67%
22
82%
01
100%
04
36%
07
0%
10
0%
13
0%
16
0%
19
0%
22
0%
01
0%
04
0%
07
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
16°
Mon
10:00
17°
 
16°
 
15°
 
14°
Mon
22:00
12°
 
12°
 
11°
 
11°
Tue
10:00
12°
 
12°
 
10°
 
8°
Tue
22:00
6°
 
5°
 
5°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
07:32
Sunset
Sunset
18:51
Moon Phase
Last Quarter (36%)
Timezone: GMT+05:30
Last updated: Oct 5, 2026 1:06 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
54.266670
Longitude
Longitude
-5.933330
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More about Castlewellan
Content curated by the NearWeather editorial team · Updated periodically
Castlewellan is a town on the east coast of Northern Ireland in county Down. It is situated 15 miles south of Belfast and is known for its picturesque views of the Mourne Mountains and its beautiful surrounding countryside. The climate in Castlewellan is typical of the maritime climate of the British Isles, with mild temperatures all year round. The average temperature in the summer is around 16 degrees Celsius, while in the winter it typically drops to around 4 degrees Celsius. Rainfall is spread throughout the year with an average of around 700mm, although it can be quite heavy during the winter months.
Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about Castlewellan
What is the temperature in Castlewellan right now?

The current temperature in Castlewellan is 16°, and it feels like 16°. Today's high is 16° and the low is 16°.

Will it rain in Castlewellan today?

No rain is expected in Castlewellan today (0% chance). Conditions are currently overcast clouds.

What is the weather in Castlewellan today?

Castlewellan is experiencing overcast clouds with a temperature of 16°. Humidity is at 90% and wind speed is 25.42 km/h from the WSW.

What is the humidity in Castlewellan today?

Humidity in Castlewellan is 90% right now, with a dew point of 15°. Conditions may feel muggy or uncomfortable.

What is the wind speed in Castlewellan today?

Wind speed in Castlewellan is 25.42 km/h, flowing at 250° WSW wind direction. Gusts up to 48.35 km/h.

What is the 5-day forecast for Castlewellan?

NearWeather provides a detailed 5-day forecast and 48-hour hourly forecast for Castlewellan. Today's high is 16° and low is 16°, with a 0% chance of rain. Scroll up to view the full day-by-day and hourly breakdown.

What does it feel like in Castlewellan today?

It feels like 16° in Castlewellan today, with 99% cloud cover and 10 km visibility.

Weather in Castlewellan
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