Portland (Dorset) weather

Headline:

Bright intervals by day ahead of rain later.

Today:

Mostly dry to start with variable amounts of cloud and occasional bright intervals. Cloud building during the afternoon with patchy rain fringing into western counties. Less windy than Wednesday but still breezy. Maximum temperature 18 °C.

Tonight:

Rain spreading eastwards through the evening, perhaps turning heavier in places. This clearing through the early hours to allow some clearer spells by dawn. Turning chillier once skies clear. Minimum temperature 13 °C.

Friday:

A largely dry day with sunny spells, though an isolated shower may pop up in the afternoon. Breezy by day but winds easing into the evening. Maximum temperature 18 °C.

Outlook for Saturday to Monday:

Chilly but fine start to Saturday ahead of rain pushing through overnight with winds strengthening again. Cloud and patchy rain lingering on Sunday and Monday.

Updated: 05:00 (UTC+1) on Thu 28 Sep 2023

Monday will bring patchy rain and a cloudy day to the south, elsewhere generally a day of sunny spells, with a risk of showers and stronger winds in the north. As the period progresses, it is likely to be more unsettled with some rain and stronger winds to the north, although with drier conditions further south. This broadly changeable setup is likely to continue, with possibly some lengthier drier interludes between systems, particularly in the southeast, and close to average temperatures but the potential for some chilly nights. Towards the end of this period there is a possibility of a more widely settled spell developing, at least for a time, with temperatures likely to be above average overall, though still with some cool nights and morning fog patches.

Updated: 15:00 (UTC+1) on Wed 27 Sep 2023

A slowly evolving weather pattern is considered more likely through this period, though with a typical mix of settled and unsettled spells of weather. Within the more settled periods it is possible that northern parts will receive below average rainfall, with the south possibly receiving above average rainfall. Temperatures are more likely to be above average than below average overall, but with chilly nights in settled conditions.

Updated: 16:00 (UTC+1) on Wed 27 Sep 2023