The weather. Told straight.

Weather in Slieve Gullion today: the honest forecast

Slieve Gullion

Clear as a bell tonight. The stars are showin’ off.

Share this verdict WhatsApp X Facebook

6°C

Clear Clear sky

Feels like
3°C
Wind
14 km/h
Humidity
87%
Rainfall
0 mm

Sunrise 07:55 Sunset 18:27

Air quality Fair

Updated 21:08 on 16/10/2026. Don’t be expecting miracles.

Tomorrow in Slieve Gullion

Saturday 17/10/2026

Leaves everywhere and a nip in the air. Autumn’s here, God help us.

Clouds, high of 9°C, low of 2°C. 0 mm of rain, 0% chance. Wind up to 13 km/h.

The day after in Slieve Gullion

Sunday 18/10/2026

Forecast: chaos with a chance of disappointment.

Clouds, high of 9°C, low of 2°C. 0 mm of rain, 0% chance. Wind up to 6 km/h.

Tomorrow in Slieve Gullion: the verdicts

  • The view9/10 for the viewSpectacular. You’ll see half the country.
  • Wind up top9/10 for wind up topCalm on top. A rare treat.
  • The climb10/10 for the climbA day to remember. Go early.
Share these scoresWhatsApp

Next 24 hours in Slieve Gullion

Bit of sun, bit of cloud, bit of everything. Typical.

In 3-hour steps.

  1. 22:00 6° 0% chance of rain
  2. 01:00 6° 0% chance of rain
  3. 04:00 5° 0% chance of rain
  4. 07:00 2° 0% chance of rain
  5. 10:00 5° 0% chance of rain
  6. 13:00 9° 0% chance of rain
  7. 16:00 9° 0% chance of rain
  8. 19:00 5° 0% chance of rain

The days ahead in Slieve Gullion

  1. Sat 17/10 Clouds 9° / 2° 0 mm, 0% The weather’s mad, but we’ll survive. We always do.
  2. Sun 18/10 Clouds 9° / 2° 0 mm, 0% Dull as dishwater, but dry. Count it as a win.
  3. Mon 19/10 Clouds 8° / 1° 0 mm, 0% Grey and flat. Like a Monday in the weather.
  4. Tue 20/10 Rain 9° / 4° 0.7 mm, 53% Rain again. The sky’s got a subscription.
  5. Wed 21/10 Rain 8° / 4° 2.3 mm, 100% Lashin’ outta the heavens.

About the weather in Slieve Gullion

A heather-covered mountain in south Armagh with a cairn on top. It is in County Armagh. Weather on a mountain can be very different from the weather in the valley: it is colder, windier and the cloud can sit on top all day. Always check the forecast and tell someone where you are going.

Slieve Gullion is in County Armagh, at about 54.12°N, 6.42°W. The closest places we cover are Newry (8 km), Warrenpoint (11 km), Dundalk (13 km).

Across Ireland, spring is cool and bright with showers, summer highs are typically in the high teens with long evenings, autumn is the wettest and windiest stretch as the Atlantic fronts return, and winter is mild for the latitude with frost on clear nights. Rain can arrive in any month.

Quick answers for Slieve Gullion

What is the weather in Slieve Gullion right now?
It is 6°C in Slieve Gullion with clear sky, feeling like 3°C, with wind at 14 km/h.
Will it rain in Slieve Gullion tomorrow?
Rain is unlikely tomorrow in Slieve Gullion (a 0% chance).
What will the temperature be in Slieve Gullion tomorrow?
A high of 9°C and a low of 2°C, with wind around 13 km/h.
What time is sunset in Slieve Gullion today?
Sunrise is at 07:55 and sunset at 18:27.

Weather nearby

Beaches, hills and venues nearby

All weather in County Armagh