Totally wrong temperature
Location: St Clair, NSW 2759, Australia.
Temperature is always off by at least 5 degrees.
Example: This morning of 24th of June 2020.
Street sensors, google search, other mobile applications shows 3 degrees but Windy shows 9 degrees.
Have you tested the different models available on Windy ? ECMWF, GFS, METEOBLUE.
Then you can compare observed temperature by official weather stations with models forecasts. Select Reported temperature and click one of them. (Better to use official weather station with wmo label). You get a comparison between reported and forecast temperature:
See more details with this FAQ link:
GFS and Meteoblue seems better for temperature at midday.
Use also this feature: