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    Caution needed - Extreme heat takes hold

18:17
22 June 2026

Caution needed
Extreme heat takes hold

Split temperature maps of the UK for Wednesday 24.06 and Thursday 25.06 showing intensifying heat across Britain, with temperatures rising from 38°C near London on Wednesday to 37°C on Thursday, and a central heat warning symbol highlighting widespread extreme warmth.
Heat builds during the week, possibly hitting 40 °C locally.

Extreme heat will grip the UK this week, with rare heat warnings in force in parts of the country.

Amber extreme heat warnings are in effect from Monday into Tuesday, before a red warning covers parts of central England into Wales. This becomes just the second ever red extreme heat warning following the first in the historic heatwave of July 2022.

Daily highs are expected to exceed 37 °C even in shaded areas, and rising to around 40 °C in places, threatening the all-time UK heat record of 40.3 °C. Increasing humidity will also make conditions more oppressive along with tropical nights for some.

In Ireland, yellow heat warnings are active from Tuesday, after a rather overcast Monday it is turning sunnier and hotter from Tuesday onwards.

Later in the week, Thursday could mark the peak of the heat. However, there is also potential for widespread thunderstorms across the north of England into Scotland.

Temperatures will dip again from Friday, but it will remain warm through the weekend.

London

Mo
18
27
Tu
19
35
We
23
37
Th
22
36
Fr
25
34
Sa
20
28
Su
19
28
Mo
18
26
Tu
17
25
We
17
26
Th
18
29
Fr
18
27
Sa
18
29
Su
19
27
Max (°C)
Min (°C)
moreless

Manchester

Mo
18
27
Tu
17
32
We
19
33
Th
23
34
Fr
25
30
Sa
19
25
Su
17
25
Mo
14
22
Tu
12
20
We
15
23
Th
13
22
Fr
13
21
Sa
14
23
Su
14
22
Max (°C)
Min (°C)
moreless

Dublin

Mo
12
21
Tu
15
27
We
15
20
Th
15
26
Fr
20
23
Sa
17
21
Su
14
22
Mo
12
20
Tu
11
18
We
12
20
Th
10
19
Fr
11
20
Sa
13
20
Su
11
20
Max (°C)
Min (°C)
moreless

Edinburgh

Mo
13
19
Tu
14
28
We
15
24
Th
16
20
Fr
16
27
Sa
18
23
Su
14
21
Mo
13
20
Tu
11
19
We
12
20
Th
10
19
Fr
11
20
Sa
13
21
Su
12
20
Max (°C)
Min (°C)
moreless

Cardiff

Mo
19
30
Tu
20
33
We
21
35
Th
23
36
Fr
19
27
Sa
18
23
Su
16
24
Mo
15
23
Tu
13
21
We
16
24
Th
15
23
Fr
15
23
Sa
15
23
Su
16
23
Max (°C)
Min (°C)
moreless
Weather & Radar editorial team
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