Weather report for the Met Office for tomorrow:

Forecast for daylight hours for Saturday / Rhagolwg ar gyfer oriau'r dydd Dydd Sadwrn Hazards / Peryglon
Severe gales on the hills. Wind chill. General situation / Sefyllfa cyffredinol
A very strong southeasterly airflow will persist across Wales but it should be a dry and bright day. Weather / Tywydd
It will be a dry day with some sunshine although this may be quite hazy at times. Visibility / Gwelededd
Good or very good. Cloud base / Gwaelod y cymylau
Mostly well-broken and above the summits. Wind and temperature at 900m / Gwynt a thymheredd at 900m
Southeasterly at 55 mph with gusts to 80. Plus 5 Celsius and feeling cold in the wind. Freezing level / Lefel rhewi
Mostly above the summits but occasionally subzero at around 500 to 600 metres

I've highlighted the best bits in Red