Hey Folks. I was wondering how to warn me before my whole water stuff outside freezes and bursts cause I forget to check the weather. The Solutions I found while searching the web did not click with me so here is what I came up with:
alias: Freezing Warning
description: ''
triggers:
- trigger: time
at: '07:00:00'
conditions: []
actions:
- variables:
message: Your massage to go out and close those Vales and empty the hoses
mtittle: Freezing Alarm!
minTemp: 2
- action: weather.get_forecasts
metadata: {}
target:
device_id: ChangeMe
data:
type: daily
response_variable: daily
- if:
- condition: template
value_template: |-
{% set ns = namespace(freezing=false) %}
{% for day in daily['weather.forecast_home'].forecast %}
{% if day.templow < minTemp %}
{% set ns.freezing = true %}
{% endif %}
{% endfor %}
{{ ns.freezing }}
then:
- action: notify.send_message
metadata: {}
target:
device_id: ChangeMe
data:
title: '{{ mtittle }}'
message: '{{ message }}'
mode: single
Just a simple Automation. No editing template.yaml files. Could add a condition with a helper var like “I closed the vales etc” and don’t remind me every day. Guess I’ll do that… Be sure to change the ID of you location and ID of you mobile device for the message.
have fun, bye
Nice, this is one of those automations that pays for itself the first winter. Two small things that might make it nicer to live with:
The loop with the namespace can be a one-liner, and you can limit it to the next couple of days so a cold snap six days out doesn’t nag you every morning all week:
{{ (daily['weather.forecast_home'].forecast[:2] | map(attribute='templow') | min) < minTemp }}And to stop repeat alerts once you’ve actually done the work, pair it with an
input_booleanlikeoutdoor_water_winterized: add it as a condition (only notify when off), send the notification with an actionable button (“Done”) from the companion app, and have the button event flip the boolean on. Then a second automation turns it back off when the forecast lows climb above, say, 8 °C for a few days in spring. That also covers curbstickle’s point if you ever add more taps, one boolean per tap.“Your massage to go out and close those…”
I assume you went snowblind from having to type “message” that many times lol.
I plan to set one up with a little La Crosse weather station my parents gave me. Turns out it seems well supported and gives me accurate indoor and outdoor temperature as well as wind speed and other stuff like storm predictions. Gonna link my heat pump to it and have my NTFY ping me when I should start the fireplace instead.
We get a lot of small microclimates where I live so its more reliable than the forecast.
What I might consider is a “winterized” variable per hose/pipe that may be a concern, and only notify if winterized is false for those, and have the notification list specifically not winterized.
That state would be manual per, but then you would be able to get a more meaningful reminder to only those that would be at risk.
Yes, my usw case just considers one Valve leading outwards that I need to shut and bleed. Don’t need multiple freezing points for hight presure/isolated pipes. One fits all for me. The loop could be modified for those things. Now it is set to “2”. Not even considering °C or °F (°C in my case). Home Assistenten takes care of that
I have several of these set up. Mostly for opening windows to reduce AC use. If the temp outside is dropping and is within two degrees of interior temp, then it’s time to open the windows. And the inverse during autumn to close them. I could have saved you some time probably.
Thinking about it: i guess i should document my Automation a little more. It is checking the next 6 Days for freezing Temperatur not the current
Based on the title I thought this was a halting problem question and was like “oh dang OP is NOT going to like this answer…”
Yeah, half my research ended in system hang reports



