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    Weekend outlook - Days turn cooler and nights turn chilly

01:28
20 July 2026

Weekend outlook
Days turn cooler and nights turn chilly

Split temperature maps comparing daytime temperatures on Saturday 18.07 with early morning temperatures on Sunday across the UK and Ireland. Daytime highs reach 25°C in southern England, 24°C in southwest Ireland, and 22°C in western Scotland, while early morning lows range from 8°C in western Scotland to 14°C in southern England and 11 to 12°C across most of Ireland.
Daily highs are slightly cooler this weekend, with single digit lows for some overnight into Sunday.

Temperatures are cooling over the weekend, falling back to around the average for the time of year with some chilly nights in places.

Saturday sees a cloudy start for the parts of the UK and Ireland, mostly to the north and east with patchy light rain offering a little relief from the prolonged dry spell.

Southern areas see more scattered cloud as the day goes on, and could also see showers at times with temperatures peaking in the mid-20s to the south-east, and the low-20s more widely.

By Sunday, conditions are mainly fine and dry with thicker cloud cover remaining at times in the north. Temperatures remain around the average for the time of year, which will feel cooler compared to recent heatwaves.

Into the evening, these drop sharply. Falling as low as 6 to 7°C locally in some rural areas of the north and north-east but widely reaching only a few degrees above 10°C making those tropical nights feel distant in the memory.

Strong high pressure remains dominant throughout and into the new week which is likely to lead to mainly dry and fine weather with growing chances of rain in parts.

London

Mo
13
25
Tu
15
26
We
16
26
Th
15
25
Fr
18
27
Sa
17
28
Su
19
30
Mo
18
27
Tu
17
26
We
16
28
Th
18
28
Fr
18
28
Sa
17
28
Su
18
31
Max (°C)
Min (°C)
moreless

Manchester

Mo
11
23
Tu
12
23
We
15
23
Th
15
23
Fr
14
22
Sa
14
20
Su
17
24
Mo
14
22
Tu
14
22
We
12
21
Th
14
22
Fr
12
22
Sa
14
23
Su
14
24
Max (°C)
Min (°C)
moreless

Dublin

Mo
11
21
Tu
14
20
We
14
20
Th
13
21
Fr
12
22
Sa
16
22
Su
16
24
Mo
12
21
Tu
11
19
We
11
20
Th
13
21
Fr
11
20
Sa
11
21
Su
11
21
Max (°C)
Min (°C)
moreless

Edinburgh

Mo
12
22
Tu
12
25
We
13
22
Th
15
22
Fr
14
21
Sa
15
22
Su
15
22
Mo
13
20
Tu
12
20
We
12
21
Th
13
21
Fr
11
19
Sa
12
21
Su
12
20
Max (°C)
Min (°C)
moreless

Cardiff

Mo
11
25
Tu
14
26
We
14
25
Th
14
25
Fr
15
26
Sa
14
23
Su
18
25
Mo
16
24
Tu
15
23
We
13
22
Th
15
23
Fr
15
23
Sa
15
23
Su
16
24
Max (°C)
Min (°C)
moreless
Weather & Radar editorial team
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