Turn switch on/off based on weather forecast

[markisrael]

I’ve been transferring my automations from many other services to Hubitat. I have one giving me trouble.

I have heated mats I use to melt snow. I want to turn on when snow is in the forecast. I have apixu setup, but no idea on how to creat a rule in rule machine based on a weather forecast, any ideas?

[Navat604]

Have a look at Wato apps. I am not sure about snow attribute but I use rain for my sprinkler.

[RELEASE] WATO - When any Attribute Then this cmd Otherwise that cmd

i was trying to get Rules Machine to check value of any device attribute and trigger an action on match or non-match. didnt find a way to do it. so heres some code that does that. any device attribute can be compared with an entered value and selected commands can be run either on match or non-match. the param fields are there for commands that need a parameter to run … like set level on a light. here is the child app for each new WATO that is defined: this functionality should probably…

[homeauto2112]

You can also do this natively. Try this:

Capturing custom attributes into variables

I have a several rules that send notifications off to different speakers with different volumes (playing and alert). I would like to see if I could package this into one rule and then call that rule. I would like to do this with RM 4.0 (no offense to custom app writers). I think the following would work: Alert Rule: Capture current device volume into a "current_volume" variable. Set current device volume to a louder level. Speak the info populated into the "alert" variable. Restore curre…

[zarthan]

"Turn switch on/off based on weather forecast"
I would much prefer being able to turn the weather on/off based on a switch. I just got done shoveling snow and another storm is due today.

[Eric.C.Miller]

THAT would be a truly useful automation!

[markisrael]

Thank you. I am now trying the attributes with DarkSky device. I’m using the Rule Engine rather than WATO, as it can parse attributes. No attribute for Snow, but I can parse the forecast text for the word Snow.

I’ll report back how it works.

BTW - the mats keep me from having to shovel much at my ski house.

[humac]

I just got snow melting mats and am looking to do the same thing. Did you find a solution?

[markisrael]

I did. I used Dark Sky Forecast Text containing snow as the trigger. But I think that is going to stop working soon, so will need to find a new source.

[brad5]

I'm using the weather.gov integration to determine whether it's cloudy outside or not and adjust motion lighting accordingly. I hope weather.gov will be here for a while...

[humac]

I ended up using node-red and openweathermap.org and put together this automation, hasn't snowed yet so hopefully, it will trigger when it does lol

[humac]

Seems like it's working

[davidalanwolters]

This is awesome! You inspired me to explore node-red and turn my new SummerStep on/off based on the forecast. It seems to be working. Thank you for posting!

[cgmckeever]

@humac how do you get if it is going to snow from Open Weather?

I only see these returned from the API as well as the NodeRed module

• description - a brief verbal description of the current weather for human reading.
• weather - a very short description of the current weather.
• icon - the weather icon code for the current conditions.
• id - the id given to the current weather by OpenWeatherMap
• tempc - the current ground temperature at that location in Celsius.
• tempk - the current ground temperature at that location in Kelvin.
• humidity - the current relative humidity at the location in percent.
• windspeed - the current wind speed at the location in metres per second.
• winddirection - the current wind direction at the location in meteorological degrees.
• location - the name of the location from which the data was sourced.
• rain - the precipitation amount in mm/h (only present if it is raining).

[markisrael]

I use weather dot gov and test if forecast contains snow. My guess is that description contains snow.p, should work.