Hi Mitchell,
That looks like a bug in the rendering of the summary box. The underlying data is correct.
wf = WeatherForecastData[Entity["City", {"Cairo", "Cairo", "Egypt"}], "MaxTemperature", Tomorrow]
wf["DatePath"]
(* {{DateObject[{2023, 4, 6, 0, 0, 0.}, "Instant", "Gregorian", -5.], Quantity[81.1, "DegreesFahrenheit"]}} *)
A TimeSeries
has several properties
ts = WeatherData[Entity["City", {"Cairo", "Cairo", "Egypt"}],
"MaxTemperature", {{2021, 10, 23}, {2021, 11, 06}, "Day"}]
ts["Properties"]
(* {"DatePath", "Dates", "FirstDate", "FirstTime", "FirstValue",
"LastDate", "LastTime", "LastValue", "Path", "PathComponent",
"PathComponents", "PathFunction", "PathLength", "Times",
"ValueDimensions", "Values"} *)
"DatePath" was used to get the underlying {date, value}
pairs for the forecast. The properties are documented in the "Details and Options" section of the TimeSeries
documentation.