There's far too much to comment on, but the remarkable July 4 heat in Anchorage may be the most astonishing statistic: the previous all-time record for the city's official climate site was only 85°F.
Dense smoke from wildfires has held temperatures down in some parts of the interior, including Fairbanks, but many locations in western and southern Alaska are well up into the 80s today. Particularly striking to me is the 87°F currently being reported from Noatak in the northwest - above the Arctic Circle - and 92°F earlier today at the high-quality CRN station to the southeast of Ruby.
Here's an annotated true-color satellite image, courtesy of Rick Thoman and UAF:
Nasty wildfire smoke blankets a fair chunk of Alaska. Smoke from the big fires west of McGrath inundated the lower Kuskokwim and Bristol Bay regions Sunday, and today the smoke has turned northward across western Norton Sound. #akwx @Climatologist49 @KYUKNews @kdlgradio @KNOMnews pic.twitter.com/GcxurQP7yW— Rick Thoman (@AlaskaWx) July 8, 2019
Click on the image below for a higher resolution version:
As bad as the smoke is at the moment in Fairbanks, this summer has a long way to go to equal the awful summer of 2004 in terms of duration and choking density of smoke - see the chart below, showing data from the Fairbanks airport ASOS instrument. Here's hoping that 2004 remains an outlier.