Castlewellan (County Down) weather

Headline:

Sunny spells and heavy, blustery showers

Today:

Rather cold with a mix of sunny spells and frequent blustery showers, which will be heavy at times with a risk of thunder. Occasionally strong northwesterly winds. Maximum temperature 13 °C.

Tonight:

Some late sunny spells, then clear spells overnight, with showers, the showers becoming less frequent and lighter. Northwesterly breeze continuing, locally strong in coastal parts. Minimum temperature 4 °C.

Thursday:

Sunny spells and showers, perhaps cloudier in west with more persistent rain for a time. The showers tending to die out through the afternoon. Breezy with winds turning more northerly. Maximum temperature 13 °C.

Outlook for Friday to Sunday:

Mainly dry with sunny spells Friday. Bright start Saturday but becoming cloudy with rain spreading east in afternoon. Rain clears overnight to leave sunny spells and a few showers Sunday.

Changeable and at times rather unsettled conditions look to dominate at first, with low pressure often close by. This means periods of rain or showers, some of which could be heavy, for many places, though some drier interludes are also expected. As this period progresses, high pressure is likely to begin to build from the south bringing more in the way of settled weather. Temperatures likely cooler than average to begin, but tending to recover as the period progresses, perhaps becoming rather warm by the end of the period, especially in the south.

Patterns which bring more settled weather are more likely to dominate towards the end of May. Whilst further rain and showers are possible at times, there is likely to be longer spells of fine and dry weather. Into June, more mixed conditions are likely with spells of rain and showers, but also some drier weather at times. Temperatures are most likely to be near or slightly above average overall, with some warm weather possible at times.