300 meters resolution SF Bay Area Forecast
If I had to guess they are running the WRF model [1][2]. The AI part is post-processing the model output. With a fair amount of reading the manual anybody can run their own WRF. WRF scales from running on a laptop to supercomputers with 1000s of cores.<p>[1] <a href="https:&#x2F;&#x2F;www.mmm.ucar.edu&#x2F;models&#x2F;wrf" rel="nofollow">https:&#x2F;&#x2F;www.mmm.ucar.edu&#x2F;models&#x2F;wrf</a> 
[2] <a href="https:&#x2F;&#x2F;github.com&#x2F;wrf-model&#x2F;WRF" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;wrf-model&#x2F;WRF</a>