Get a key here. Make a flow with Better logic. Make a better logic variable and call it whatever u like. Make a trigger at any time of the day. For the THEN part we pick the HTTP flow card: GetJSONpath Better Logic. Top txt will be:
http://weerlive.nl/api/json-data-10min.php?key=demo&locatie=Amsterdam
Plz change “demo” with ur own key and change the location.
2nd txt will be:
$.liveweer[0].d0tmax
At the end u find the variable u just created.
There u have the expected temp for today in a flow.
If u want the max temp for tomorrow pick d1tmax 
Now u can create a flow with a time trigger AND logic tag>23 THEN…
