Kelvin — Living Forecast

Most weather apps hand you a wall of cards. Kelvin draws the day instead. The forecast is one continuous color mass across the foot of the screen. Its crest is the temperature and its color is the temperature — cold indigo through to hot magenta — so the shape of the day is legible before you read a single number. Drag your finger across it and you move through time; the huge thin numeral counts with you. Nothing else on the screen competes with it. No cards, no rows, no weather icons, no tabs. WHEN TO GO OUT Tell Kelvin the weather you like — a temperature, how much either side of it, and whether you want it rain-free, calm, dry or in daylight. It reads the next seven days hour by hour and tells you the next stretch that matches. The whole week is drawn as a grid of hours so you can see why, not just be told. THE MAP Seven layers, and not one of them asks you for an API key. Rain radar…