I have exactly the same symptoms on exactly the same hardware and software (latest update) as the OP @windyati
I didn't realize that killing the app was a workaround, but after reading this report, I confirmed that the issue is not present immediately after killing the app.
Otherwise, the issue is frustrating because I can't get back to the 1hr forecast resolution since the app never seems to remember that I prefer the 1hr resolution that I pay for. 😊
Google Pixel 8 Pro
Same software update that windyati reported