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    Weekend outlook - Days turn cooler and nights turn chilly

22:10
18 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

Su
14
23
Mo
13
25
Tu
15
26
We
17
26
Th
16
25
Fr
17
29
Sa
19
29
Su
19
27
Mo
18
28
Tu
18
27
We
18
26
Th
16
24
Fr
17
26
Sa
18
28
Max (°C)
Min (°C)
moreless

Manchester

Su
11
21
Mo
11
24
Tu
13
23
We
15
23
Th
14
23
Fr
14
22
Sa
15
23
Su
15
22
Mo
13
22
Tu
15
24
We
13
22
Th
12
20
Fr
13
22
Sa
14
22
Max (°C)
Min (°C)
moreless

Dublin

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

Edinburgh

Su
9
22
Mo
11
22
Tu
11
24
We
13
22
Th
11
22
Fr
12
20
Sa
14
22
Su
13
20
Mo
12
21
Tu
13
21
We
11
19
Th
11
20
Fr
11
21
Sa
12
21
Max (°C)
Min (°C)
moreless

Cardiff

Su
15
25
Mo
12
25
Tu
15
26
We
15
26
Th
15
25
Fr
16
24
Sa
16
24
Su
17
24
Mo
15
23
Tu
16
24
We
15
23
Th
13
21
Fr
16
24
Sa
15
23
Max (°C)
Min (°C)
moreless
Weather & Radar editorial team
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