Will London be 28°C+ on 3+ days this week?

Always-on YES/NO weather market on London, United Kingdom. YES if the daily high reaches 28°C on at least 3 days of the local week; NO otherwise. Days are London LOCAL calendar days (Europe/London); the settlement reading is the observed daily value Hunch's weather stream captures from Open-Meteo for each local day — never a forecast. This round covers Sep 21 → Sep 27 (local) and runs 2026-09-21T00:00:01.000Z → 2026-09-27T23:59:59.000Z UTC; it resolves automatically and the next week is already live at this same link.