Portishead (North Somerset) weather

Headline:

Mostly cloudy and damp with some heavy showers.

Today:

Another mainly cloudy and damp day with some showery outbreaks of rain, this perhaps heavy and prolonged in places. Less windy overall than in recent days. Some brightness developing across Cornwall and Devon during the afternoon. Mild. Maximum temperature 10 °C.

Tonight:

Turning mostly dry with clear spells inland this evening, though a few coastal showers. Further outbreaks of wet and windy weather will soon return overnight from the west. Mild. Minimum temperature 5 °C.

Friday:

Rain will clear north-eastwards during the morning leaving brighter, showery weather. However, more persistent rain returning later. A windy day, with a risk of coastal gales. Temperatures around average. Maximum temperature 9 °C.

Outlook for Saturday to Monday:

Windy on Saturday with frequent heavy showers. Often cloudy and breezy thereafter, with further outbreaks of rain developing at times. Turning colder next week.

Weather systems moving in from the Atlantic will continue to attempt to push in from the west, but tending to stall in the vicinity of the UK as they encounter high pressure to the north and northeast. As a result, further spells of rain or showers are likely at times. These may be heavy and persistent, especially in the south and west, with the best of any drier interludes in the far north and northeast. Whilst mild conditions are expected to encroach into the south and southwest at times, it is likely to turn somewhat colder through this period, bringing the risk of some snow, most likely across hills in Scotland and northern England, but perhaps extending to other areas with time.

A similar theme is expected to continue as Atlantic frontal systems attempt to push eastwards at times. As the jet stream is slightly further south than normal, the wettest conditions are more likely in central and southern areas. North and northwestern parts of the UK are most likely to be drier than normal. Whilst mild incursions of wet and windy weather are favoured at times in the south and west, colder conditions in the north and northeast will bring associated wintry hazards where any precipitation attempts to spread in, especially on hills.