Lewes (East Sussex) weather

Headline:

Soon fine with sunny spells Tuesday. Becoming breezy.

This Evening and Tonight:

Isolated showers soon dying away, with some late sunny spells for many. Cloud amounts should increase from the east for a time overnight, perhaps bringing the odd spot of light rain. Chilly, perhaps with local rural grass frost. Minimum temperature 2 °C.

Tuesday:

Early cloud largely clearing westwards to leave a mainly fine day with sunny spells. Temperatures near-normal, tempered by the strengthening easterly wind, especially in coastal districts. Maximum temperature 15 °C.

Outlook for Wednesday to Friday:

Mainly fine, although windy and rather cloudy for a time midweek. Temperatures near normal overall, but tempered by the wind at first, with some chilly starts still likely later.

High pressure is likely to be centred close to or across the UK through much of this period, so many places will be largely dry with clear or sunny periods. Some showery rain may affect northern and western parts this weekend though. Colder air will also try to push into the country from the north this weekend but will probably only briefly make limited progress into the northeast, where it could bring a short-lived showery interlude, some of these wintry. Winds will be mostly light, but briefly stronger in the northeast as the colder air tries to come south. Temperatures will probably be near or slightly above normal for many, but with a risk of colder conditions affecting the north or more especially the northeast this weekend.

Slowly evolving weather patterns are probable through this period. Within this, high pressure is more likely than not to be located somewhere to the north or northwest with low pressure closer to southern and possibly eastern areas. The orientation of and proximity to the UK of each of these features will be key to regional weather on a day-to-day basis. However, on balance, northern and some western areas are likely be drier, with southern and possibly some eastern parts seeing more in the way of rain or showers. Overall, temperatures probably close to or a little above average, though scope for some cold nights with late season frost, especially in the north.