London (Greater London) weather

Headline:

Largely dry and bright. Turning increasingly cloudy later.

Today:

After a frosty start, it will be a largely dry and bright day, with some sunny spells, especially in the east. Turning increasingly cloudy later in the day, with the odd spot of drizzle possible. Breezy. Temperatures near normal. Maximum temperature 9 °C.

Tonight:

Cloud and drizzle clearing this evening to leave a dry night, with variable cloud and clear spells. Some fog patches forming in places. A milder night compared to previous night. Minimum temperature 5 °C.

Tuesday:

A largely dry and bright start on Tuesday, before a weakening band of rain moves erratically southeast by evening. Windy, with temperatures staying on the mild side. Rain clearing overnight. Maximum temperature 11 °C.

Outlook for Wednesday to Friday:

Dry with bright or sunny spells Wednesday. Dry with plenty of sunshine on Thursday and Friday. Temperatures falling from near average to rather cold from midweek, with widespread frosts overnight.

High pressure will sit close to (and probably to the east of) the UK in this period. Consequently, southern and eastern areas are likely to see the driest conditions, with lightest winds, which could lead to overnight frost and fog with temperatures a little below normal. Further north and west, there is a risk of incursions of Atlantic air and fontal systems at times, which would bring some rain here, but with milder temperatures. There is a very low chance that if the high orientates in such a way that a more easterly (rather than southerly/southeasterly) flow develops, a spell of much colder conditions could develop across the UK, with a risk of wintry showers in some parts.

It is most likely that high pressure to the east or northeast of the UK will dominate at first in some form or another, but there is a weak signal for a more unsettled spell in the second half of the month, before signals become indistinguishable from climatology by the start of March. Temperatures may be below average at first, with overnight frosts, but could return to near average or even rise a little above average later. Precipitation amounts, are likely to be below average at first, though a few wintry showers are possible in the east, and perhaps some rain in the west, but amounts may return to near-normal later in the month.