Castlewellan (County Down) weather

Headline:

Cloudy at first on Wednesday. Some rain, then drier, brighter.

This Evening and Tonight:

Dry with clear periods at first this evening. Cloud spreads north by late evening with outbreaks of rain, some heavy, soon following. Drier weather will follow to Fermanagh and south Tyrone by morning. Minimum temperature 9 °C.

Wednesday:

Cloudy start with rain in north at first, then a dry day with increasing sunny spells and becoming milder. A breezy day. Maximum temperature 18 °C.

Outlook for Thursday to Saturday:

Outbreaks of rain on Thursday morning clearing in the afternoon. Scattered showers following on Friday. These showers become isolated on Saturday.

It is likely to be fairly unsettled at first, with areas of rain or showers, most widespread across central, southern and eastern areas, perhaps accompanied by some strong winds. Into next week, a northwest-southeast split is most likely, with some further rain or showers in southern and eastern areas, closest to an area of low pressure, whilst the best chance of longer, drier spells will be towards the north and northwest, where some patchy fog and rural frost are possible. It will also turn colder, as a northerly flow becomes established for a time. Later in the period, more widely drier and settled conditions could develop as high pressure becomes slightly more influential, although probably still with a few coastal showers. Temperatures should gradually return closer to average.

By the beginning of October, confidence is very low in the weather regimes most likely to affect the UK. On balance, slow-moving weather patterns are most likely, with high pressure probably close to the UK at times, at least initially. This should offer some occasional periods of dry weather, but there is always the chance in this type of setup that areas of low pressure nearby could impact parts of the UK, leading to some wetter conditions at times. Temperatures will likely fluctuate either side of, but often close to, average.