Yup. According to the site, tomorrow will be 'Sunny. Hot.' According to the app, tomorrow is 'Sunny. Drizzle.' It's been that way for the past few days, with not a cloud in the sky.
I'm having the same "Sunny Hot" and "Sunny Drizzle" issue here in Texas. This inaccuracy only occurs for me with the "Sunny Hot" forecast though. The forecast for the rest of the week is spot on (which doesn't include any Sunny Hots).