Lee Valley White Water Centre (Hertfordshire) weather

Headline:

Exceptionally hot and humid today. Chance of thunderstorms later.

Today:

Early showery rain and thunderstorms clearing northeastwards to leave a largely dry day, with prolonged spells of hazy sunshine. Another exceptionally hot and humid day. Chance of thunderstorms arriving from the south during the evening. Feeling humid. Maximum temperature 38 °C.

Tonight:

An exceptionally hot end to the day, with perhaps the chance of further heavy showers and thunderstorms moving northwards overnight. Another warm and humid night. Minimum temperature 20 °C.

Saturday:

Early showers or thunderstorms clearing to leave a largely dry day, with hazy spells of sunshine. Chance of thunderstorms arriving from the south by evening. Exceptionally hot and humid. Maximum temperature 31 °C.

Outlook for Sunday to Tuesday:

Bands of showers, heavy and possibly thundery, moving east on Sunday, gradually introducing much fresher conditions. Largely dry with warm sunny spells on Monday. Scattered, occasionally heavy, showers Tuesday.

Fairly changeable conditions at first with periods of rain and showers, and there could be some thundery outbreaks at times. The best of the drier and brighter weather initially will be across the southeast. Then perhaps a drier start to July for many, although the northwest may still see some rain at times, and perhaps accompanied by some strong winds. Temperatures are likely to be near average in the north and slightly warmer than average in the south, but with winds generally from the west temperatures aren't expected to be as hot as seen recently.

High pressure patterns are looking slightly more likely than low pressure patterns during the early part of this period, meaning a greater chance of settled and drier than average conditions. Although with outbreaks of rain and stronger winds at times, more especially across the north. There is still a chance of some changeable or more unsettled conditions developing later in the period, with a risk of some heavy and thundery showers. Temperatures are likely to be above normal on the whole, with a greater than normal chance of hot conditions developing at times.