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    Weekend outlook - Days turn cooler and nights turn chilly

18:13
17 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

Fr
16
28
Sa
17
25
Su
14
23
Mo
14
24
Tu
15
27
We
17
25
Th
16
24
Fr
18
29
Sa
18
28
Su
18
30
Mo
18
27
Tu
18
28
We
19
30
Th
18
29
Max (°C)
Min (°C)
moreless

Manchester

Fr
14
23
Sa
13
21
Su
11
22
Mo
10
24
Tu
13
21
We
15
23
Th
14
22
Fr
15
23
Sa
14
23
Su
15
23
Mo
14
22
Tu
14
25
We
14
23
Th
13
23
Max (°C)
Min (°C)
moreless

Dublin

Fr
13
24
Sa
12
21
Su
11
21
Mo
12
21
Tu
14
20
We
15
22
Th
13
21
Fr
12
21
Sa
13
21
Su
12
20
Mo
12
20
Tu
12
20
We
12
20
Th
13
21
Max (°C)
Min (°C)
moreless

Edinburgh

Fr
13
20
Sa
11
20
Su
9
22
Mo
10
23
Tu
13
22
We
14
23
Th
12
21
Fr
13
22
Sa
14
22
Su
13
21
Mo
12
21
Tu
12
20
We
13
21
Th
13
21
Max (°C)
Min (°C)
moreless

Cardiff

Fr
14
29
Sa
16
26
Su
14
24
Mo
13
25
Tu
14
26
We
15
26
Th
15
23
Fr
16
24
Sa
16
24
Su
16
24
Mo
16
24
Tu
17
25
We
15
23
Th
14
23
Max (°C)
Min (°C)
moreless
Weather & Radar editorial team
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