Pen Y Fan and Corn Du from Storey Arms walk

A classic, and very popular, short walk climbing up to the two highest peaks in the Brecon Beacons along an engineered path.

Hiking Weather

10 Day Forecast for Storey Arms

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Turning colder, but mainly dry with sunshine.

This Evening and Tonight:

A mainly dry night for all, with some cloud and clear spells across the whole of Wales. It will be cold with a widespread frost by the morning. Minimum Temperature -4C.


A frosty start followed by a clear and sunny day. It will feel very cold, especially with the winds picking up through the day. Maximum Temperature 6C.

Outlook for Sunday to Tuesday:

Dry and sunny on Sunday. Turning bitterly cold by Monday, but cloudier with a few snow showers possible in the east. On Tuesday snow showers will affect many parts.

Day 6 to 15

It will stay very cold as we head into March, with sunshine and snow showers. Showers are most likely across eastern and central parts of the UK where accumulations may mount up. Further west, large accumulations are still possible but much less likely. Winds will be light to moderate for most, but across southern Britain strong easterly winds, possibly gales around the coast, will make it feel bitterly cold. Night time frosts will be widespread and severe in places too. There is currently a possibility of more unsettled weather trying to push in from the southwest at times towards the first weekend in March and beyond. This could bring more significant snow and gales to southern parts of the UK but there is currently a lot of uncertainty with this.

Day 16 to 30

At the start of this period it will probably still be cold across the UK, with widespread frost and brisk easterly winds from Continental Europe, making it feel raw. This will continue to bring the risk of significant snow across some southern, eastern and central parts of the UK, whereas in the north and west it should be drier. As we head through the middle of March, there is a lot of uncertainty in the forecast, but it may start to turn more generally unsettled and less cold with wetter and milder weather spreading in from the southwest. In contrast, northern and eastern areas could remain cold well into March.

Met Office : WL : 2018-02-23T14:33:35

Issued: 1800 on 2018-02-23 for Brecon Beacons


Cold, sunny and breezy.

Summary Patchy mist overnight and early morning. Saturday will be dry and bright with long periods of sunshine. Mostly clear after dark but cloud increasing towards midnight.
Chance of Cloud free tops 90%. All hills cloud-free apart from some patchy cloud on the summits early morning and late evening.
Ground conditions
Visibility Excellent on the tops. Early morning mist then slightly hazy at low levels.
Severe Chill Effect: High likelihood
Strong Sunlight: Low likelihood
060708 091011 121314 151617 181920 212223
Weather Partly cloudy (night) Clear night Cloudy Sunny intervals Sunny Sunny
Rain <05% <05% <05% <05% <05% <05%
Temp (tops) -5 -5 -5 -5 -2 -1
Wind (tops) 21 20 20 20 18 18
Freezing Level 0m 0m 0m 0m 200m 200m
Day 1

Another dry and sunny day but feeling bitterly cold in the strong easterly winds.

Ice Valley level to 200m.
Visibility Excellent air clarity on the tops, slightly hazy at low elevations.
Wind East 25-30mph gusts 40mph.
Temp Minus 4 overnight rising to Minus 1 Celsius in daytime. (at high level)
Day 2

Remaining cold and dry although cloudier skies than the weekend. A few light snow showers during the afternoon and evening. Strong easterly winds and severe wind chill.

Day 3

Bright or sunny spells and mainly dry apart from the odd passing snow shower. Feeling bitterly cold at all levels and especially on the tops in the strong easterly winds.

Day 4

Another very cold day with bright spells and isolated snow showers. Easterly gales on the tops.

Data: Met Office