You just need to add the current state node for the entity and build payload in function node. Please try this.
[{"id":"2905287d40d7526e","type":"api-current-state","z":"51045e07.bbf87","name":"Windspeed.","server":"d177950.2a5aa68","version":3,"outputs":1,"halt_if":"","halt_if_type":"str","halt_if_compare":"is","entity_id":"weather.ulis","state_type":"str","blockInputOverrides":false,"outputProperties":[{"property":"wind","propertyType":"msg","value":"","valueType":"entity"}],"for":"0","forType":"num","forUnits":"minutes","override_topic":false,"state_location":"payload","override_payload":"msg","entity_location":"data","override_data":"msg","x":710,"y":1740,"wires":[["2e160d8f95abe370"]]},{"id":"feada13efa8f411e","type":"api-current-state","z":"51045e07.bbf87","name":"Balcon Humidity","server":"d177950.2a5aa68","version":3,"outputs":1,"halt_if":"","halt_if_type":"str","halt_if_compare":"is","entity_id":"sensor.balcon_humidity","state_type":"str","blockInputOverrides":false,"outputProperties":[{"property":"humidity","propertyType":"msg","value":"","valueType":"entityState"}],"for":"0","forType":"num","forUnits":"minutes","override_topic":false,"state_location":"payload","override_payload":"msg","entity_location":"data","override_data":"msg","x":540,"y":1740,"wires":[["2905287d40d7526e"]]},{"id":"2e160d8f95abe370","type":"api-current-state","z":"51045e07.bbf87","name":"Windspeed.","server":"d177950.2a5aa68","version":3,"outputs":1,"halt_if":"","halt_if_type":"str","halt_if_compare":"is","entity_id":"weather.forecast_home_les_ulis","state_type":"str","blockInputOverrides":false,"outputProperties":[{"property":"fore","propertyType":"msg","value":"","valueType":"entity"},{"property":"utlis","propertyType":"msg","value":"","valueType":"entityState"}],"for":"0","forType":"num","forUnits":"minutes","override_topic":false,"state_location":"payload","override_payload":"msg","entity_location":"data","override_data":"msg","x":870,"y":1740,"wires":[["a491e62f07af5b68"]]},{"id":"f54c44cf0d9bddec","type":"api-current-state","z":"51045e07.bbf87","name":"Balcon Temp","server":"d177950.2a5aa68","version":3,"outputs":1,"halt_if":"","halt_if_type":"str","halt_if_compare":"is","entity_id":"sensor.balcon_temperature","state_type":"str","blockInputOverrides":false,"outputProperties":[{"property":"temp","propertyType":"msg","value":"","valueType":"entityState"}],"for":"0","forType":"num","forUnits":"minutes","override_topic":false,"state_location":"payload","override_payload":"msg","entity_location":"data","override_data":"msg","x":370,"y":1740,"wires":[["feada13efa8f411e"]]},{"id":"a491e62f07af5b68","type":"function","z":"51045e07.bbf87","name":"function 1","func":"var speed = msg.wind.attributes.wind_speed\nvar fore = msg.fore.attributes.forecast[0].condition\nvar utlis = msg.utlis\nvar mini = msg.fore.attributes.forecast[0].templow\nmsg.payload = \"Good morning. The current outside temperature is \" + msg.temp + \" °C, humidity is \" + msg.humidity + \" % and the wind speed is \" + speed + \" km/h. The current weather is \" + fore + \" and the weather global throughout the day is \" + utlis + \". The minimum temperature for tomorrow is \" + mini\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1020,"y":1740,"wires":[["967b76936ab04709"]]},{"id":"bbd2e723a8fb999e","type":"inject","z":"51045e07.bbf87","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"30 16 * * *","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":210,"y":1740,"wires":[["f54c44cf0d9bddec"]]},{"id":"967b76936ab04709","type":"api-call-service","z":"51045e07.bbf87","name":"Iphone Notofication","server":"d177950.2a5aa68","version":5,"debugenabled":false,"domain":"notify","service":"mobile_app_iphone_13_pro_emp83","areaId":[],"deviceId":[],"entityId":[],"data":"{\"title\":\"Les Ulis\",\"message\":\"{{{payload}}}\"}","dataType":"json","mergeContext":"","mustacheAltTags":false,"outputProperties":[],"queue":"none","x":1190,"y":1740,"wires":[[]]},{"id":"d177950.2a5aa68","type":"server","name":"Home Assistant","version":5,"addon":true,"rejectUnauthorizedCerts":true,"ha_boolean":"y|yes|true|on|home|open","connectionDelay":true,"cacheJson":true,"heartbeat":false,"heartbeatInterval":30,"areaSelector":"friendlyName","deviceSelector":"friendlyName","entitySelector":"friendlyName","statusSeparator":"at: ","statusYear":"hidden","statusMonth":"short","statusDay":"numeric","statusHourCycle":"h23","statusTimeFormat":"h:m","enableGlobalContextStore":true}]