Mullaghash (County Londonderry) weather

Headline:

Cloudy with occasional light and patchy rain.

Today:

Cloudy with some patchy light rain and drizzle through the morning and afternoon. Rain is then likely to turn heavy for a time late afternoon. Maximum temperature 18 °C.

Tonight:

A band of heavy rain spreads east this evening, quickly clearing to leave the rest of the night mainly dry with just the chance of a few light showers. Minimum temperature 14 °C.

Tuesday:

A bright but rather breezy day with a few sunny spells between scattered showers. Feeling rather chilly. Maximum temperature 18 °C.

Outlook for Wednesday to Friday:

Heavy showers on Wednesday with a risk of thunder. Scattered showers thereafter, becoming isolated by Friday. Remaining cool throughout.

A rather changeable period is likely, with many parts of the UK seeing showers or perhaps some longer spells of rain. However, there will be some drier interludes as high pressure moves across the UK at times. There is also a chance that deeper Atlantic lows could lead to periods of widespread rain and strong winds at times, while some outbreaks of thunderstorms are also possible. Temperatures are more likely to be above normal than below overall, though the possibility of widespread or exceptional heat is lower than in recent weeks.

As we move into the start of meteorological autumn, signals for the prevailing weather patterns affecting the UK are weak, thus something close to the climatological norm is most likely. This means a broad northwest-southeast split in conditions, with the high pressure becoming centred close to the south of the UK and more changeable conditions developing towards the north and northwest. Meanwhile, drier, more settled weather is slightly more likely towards the south and east. Temperatures are likely to be above average overall. There is a chance that late season hot spells or heatwaves develop, especially in the south.