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Weather warnings for Isle of Grain

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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.

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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. Warning 2 of 3
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  1. Extreme heat

Amber warning

Hot and humid weather is expected to continue, with exceptionally warm temperatures both day and night.

Impact: High
Likelihood: Medium

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Further details

Very hot weather will continue to affect much of England. Temperatures by day are widely expected to exceed 30 Celsius, with the hottest areas potentially peaking around 38 Celsius in eastern and central England.

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 will slowly begin to become established from the west following this period, although very warm conditions are likely to remain across east and southeastern England through Saturday, albeit not as hot as earlier in the week.

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  1. Warning 3 of 3
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  1. Extreme heat

Amber warning

Hot and humid weather will continue over parts of east and southeast England.

Impact: Medium
Likelihood: Medium

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Further details

Very hot weather will continue to affect eastern and southeastern England but likely a few degrees cooler than the previous few days. Temperatures will still widely exceed 30 Celsius, peaking around 32 - 34 Celsius in London or East Anglia.

Night temperatures remain unlikely to fall below high teens Celsius for most with some places probably remaining in the low 20s Celsius. These temperatures will be accompanied by high humidity.

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