Hot, dry days go with more gout flares in the research, probably because people sweat and drink too little. Whether that is true for you is a different question. GoutMe collects the weather for your city every day, shows a card on Home when the pressure drops, and tests each weather factor against your flares, so you find out whether a hot week matters for you or not.

In 632 people with gout, hot days went with about 40% more flares, and hot plus dry air doubled the odds compared with moderate weather.
Neogi et al., Am J Epidemiol 2014Location is read at city level only and used for weather and altitude alone. Pressure, temperature, humidity, wind, UV and thunderstorm days are switched on when you allow location; pollen and air quality (PM2.5, PM10 and ozone) are available in Data if you want them. Each day is stored and plotted under Monitor and Environment.
A hot day on its own is one line in the comparison. The water you drank on it is another, from a linked food app or the Not enough water tap, so a hot week and a dry week can be told apart in What Happened. The app does not add them up into a verdict for you; it tests each one.
Pressure, temperature and humidity high and low, UV, altitude and altitude change are collected triggers. What Happened then shows whether any of them went with your flares, or that there is no link. Under Monitor and Environment a Premium card lists the next seven days of weather for your city.
Monitor and then Environment: the day's conditions at the top with a thunderstorm banner on storm days, a list for temperature, pressure, humidity, wind, UV, altitude and altitude change, and the history with your flares laid over it. The seven-day weather card sits there too, and the pressure drop card appears on Home on the day it applies.
Location, at city level only, never your exact address, used for weather and altitude alone. Skip it and the weather layer stays empty while everything else carries on. Pollen and air quality are off until you switch them on in Data; the seven-day weather card is part of Premium.
Barometric pressure, temperature, humidity, wind, UV index, thunderstorm days, altitude and altitude change, plus pollen and air quality if you switch them on.
Across many people, hot and dry days go with more flares. For you it may or may not. GoutMe does not assume either: it compares your own flare days with the weather and reports a link, never a cause.
Weather needs it. You can skip it, and the weather layer stays empty while everything else carries on. Only city-level location is used.