Weather small talk
What it really means
Talking about the weather is Britain's favourite safe conversation starter — with neighbours, colleagues, shop staff, anyone. "Lovely day, isn't it?" doesn't really ask for information; it's an invitation to friendly chat. The expected reply is to agree and add a small comment, not to give a forecast.
Context, tips & common mistakes
Weather talk is not meteorology — it is a social handshake. 'Lovely day!' from a neighbour or 'miserable out there' from a cashier requests two seconds of agreement, and the correct response is always to join in and gently extend: 'gorgeous, isn't it — supposed to turn tomorrow though.' Contradicting ('actually I checked, it won't rain') answers the literal question while failing the actual one.
Why weather: it is the one topic shared by everyone, owned by no one, and safely impersonal — perfect for the British need to be friendly without being intimate. Mastering the exchange is the cheapest possible social fluency: agree, amplify slightly, deploy the national catchphrases ('at least it's not raining', 'we'll pay for this sunshine later'), and you have completed a fully satisfactory British conversation.