This was indeed an issue with forecasting. In our entire time using this weather provider I can’t remember ever having an issue with forecasts, its usually observations from stations that is sometimes problematic.
The team has found the cause of the forecast temperature issue. The issue was related to days 1-3 of the forecast for some US locations. The core issue was by data transfer failure to a subset of our internal forecast servers that generate point forecasts upon request.
For an immediate solution, the team forced a manual data to push to force an update on these servers, which resolved the issue. The team also performed an invalidation of all forecasts on the CDN to clear any potential bad data.
While the immediate issue is resolved, I will leave this ticket open until Monday, as we will providing a situation report to provide additional detail.
Again the issue should be resolved, but of course, let us know if you notice any further issues.