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Weather warnings for Knole

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  1. Extreme heat

Amber warning

Hot and humid weather is expected to continue through the middle of the week, with exceptionally warm temperatures both day and night.

Impact: High
Likelihood: Medium

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Further details

Very hot weather will continue in general until at least Thursday across the highlighted region, although some variations from place to place and day by day are likely. Temperatures by day are widely expected to exceed 30 Celsius, with the hottest areas potentially peaking around 38-40 Celsius within the embedded red warning.

Overnight, temperatures are unlikely to fall much lower than high teens Celsius, and some places will not fall below low 20s Celsius. These high temperatures will also be accompanied by high humidity.

Cooler conditions may begin to become established from the west following this period, but confidence is low.

More detail on this warning

Warnings Update - Afternoon Forecast - 23/06/2026

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Reason for update
The warning area has been expanded, particularly across northern England, south Wales and southwest England.

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  1. Extreme heat

Red warning

An exceptional spell of hot and humid weather is expected across this region, with impacts to the general population highly likely.

Impact: High
Likelihood: High

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Further details

During the heatwave expected to affect a large part of England and Wales this week, the highlighted area now looks increasingly likely to see a two to three day period where maximum temperatures in the shade exceed 37 Celsius, perhaps rising to 38 to 40 Celsius in some places. The heat will be accompanied by high humidity, exacerbating the potential for discomfort and health impacts, with very warm and humid night times also reducing the ability for people to recover overnight.

Significant disruption to daily life is likely and the public should take every effort to make precautions and adapt their daily routines where possible to cope with these levels of heat, which up to now have been extremely rare for the UK.

More detail on this warning

Warnings Update - Afternoon Forecast - 23/06/2026

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UK weather warnings

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