A middle value for each weather measure
Comparable values for the same forecast time are sorted from lowest to highest. The median is the middle value. With an even number of values, it is the average of the two middle ones. Each measure is calculated separately, so temperature may have more available sources than UV.
An example: five temperatures
If the sources show 8, 9, 10, 12 and 14 °C, the median is 10 °C and the range is 8–14 °C. The range describes disagreement between sources. It is not a statistical confidence interval or a guarantee that the actual weather will fall inside it.
Missing is not zero
Only available, comparable values are included. A missing value is not replaced with 0. Check the source count beside a value and open the sources when you want to inspect the evidence.
Rain chance and amount answer different questions
The percentage describes the probability of precipitation. The amount in mm/h describes precipitation during the hour, including snow as water equivalent. A probability covering several hours is not treated as a separate forecast for every individual hour.
Temperature, wind and perceived weather
Feels-like temperature is an estimate of perceived temperature, distinct from air temperature. Wind direction is combined as a circular direction: northerly winds at 359° and 1° should not become southerly. The arrow shows where the wind is going; the letters indicate where it comes from.
Times and the ten-day view
Times follow the place’s time zone. Daily highs and lows come from the available hourly medians. Coverage can be incomplete for a day already in progress. Values labelled “Now” are still forecasts. The comparison can change when new forecasts are fetched.
Reading the whole picture
Start with the temperature and weather symbol. Pull the icon rail to reveal more measures, and open the sources when their differences matter to your decision. The median does not select a “winning” forecast or demonstrate greater accuracy than an individual source.