DarkSky: temperatureHigh not availible in HomeKit
When looking at the HomeKit with eve or Home+, the "temperatureHigh" value is not seen in forcasts, but temperatureMin is.  Config below:    
`    {
            "platform": "WeatherPlus",
            "name": "WeatherPlus",
            "service": "darksky",
            "key": "XXXXXXXXX",
            "interval": 15,
            "units": "us",
            "forecast": [
                0,
                1
            ],
            "nameForecast": "Home Forecast",
            "locationGeo": [
                XX.83661047,
                -XX.45644018
            ]
        }`

Also, when setting "units" to "us", we start seeing strange numbers:
`Dew Point: 12F
Apparent Temp: 29F
TemperatureMin: 16 F`

but we see the correct temps on:

`Current Temperature`

When I remove the units part, this looks more resonable:

`Dew Point: 54 F
Apparent Temp: 84 F
TemperatureMin: 61 F`

Current Temp is still unaffected by the "units" measurement.