London, the weather is:

taps oan

Taps-Aff (Scots Vernacular) Literally "tops off." The removing of one's shirt in the event of warm weather, a phenomenon rarely seen in Glasgow. Now an expression describing good times being had.1

Antonym: Taps-Oan, "tops on".
Current Weather: Awright (Overcast)
Temperature: 5°C (42°F)

Scotland:

London's forecast:

Saturday
16°C
16°C
Decentish
Sunday
11°C
11°C
Decentish
Monday
14°C
14°C
Braw