Syon House (Greater London) weather

Headline:

A cloudy evening with light showers, dry and clear overnight.

This Evening and Tonight:

Mostly cloudy to start this evening with light showers slowly fading. Becoming largely dry overnight as cloud breaks to leave plenty of clear spells. Winds easing. A mild night. Minimum temperature 13 °C.

Wednesday:

A largely fine and dry day, with sunny spells. Perhaps clouding over in the west during the afternoon. Feeling much warmer and more humid compared to Tuesday. Lighter winds. Maximum temperature 27 °C.

Outlook for Thursday to Saturday:

Largely dry with variable cloud, light winds and sunny spells Thursday. Unsettled with showers or thunderstorms Friday and Saturday. Warm and humid at first, turning a little cooler by Saturday.

Overall a rather more changeable pattern of weather through this period, compared to much of the summer thus far. The first couple of days could well be particularly unsettled with heavy rain and/or thunderstorms in many areas. Into the following week, a general westerly type set-up looks to become established, with occasional weather systems moving in from the Atlantic. This means further rain or showers and breezy conditions at times, interspersed with some drier, sunnier periods. Temperatures are expected to average out above normal and whilst brief hotter and humid days are possible, the chance of prolonged heat is lower than during the last few weeks. This broad pattern is likely to continue towards the end of July.

The end of July and first part of August will probably see a continuation of similar weather to the previous week or so - this being generally rather changeable with spells of rain or showers mixed in with some drier, brighter days. Towards mid-August, there are tentative signs that high pressure may become rather more dominant, which would bring more in the way dry, settled weather more widely. Temperatures are expected to continue to run above average overall, with a greater likelihood, compared to the preceding couple of weeks, of very warm or hot spells to develop by mid-August, especially further south and east.