London, the weather is:

taps aff

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: Braw (Sunny)
Temperature: 28°C (82°F)

Scotland:

London's forecast:

Friday
13°C
26°C
Taps Aff
Saturday
16°C
28°C
Pish
Sunday
17°C
30°C
Taps Aff