Good but not perfect
I have used this app for years and had always assumed it was accurate. Recently I have found it sometimes to be off by as much as 4-5°F. To be fair, though, other thermometer apps are also off sometimes also by 4-5°F. I trust the Weather.com app the best. Its ads also are less obtrusive in general.
showed 74° so Ive lowered my rating a couple of clicks.
Viejo44 about
Thermo, v1.7.5