A weather page asks for your location before you have even chosen a forecast. You can pause there. For a city forecast, typing the city may do the job; finding the nearest collection point may benefit more from your current position.
Treat the prompt as a request for a particular feature. It is not evidence that you must approve it to read the whole website. Look for a manual location field and check which site is asking before deciding.
Start with one site
If you granted permission without thinking, review that website’s saved permission in the browser. In desktop Chrome, location controls are under Settings, Privacy and security, Site settings, Location. Check individual exceptions as well as the default for future requests. Menu wording can differ by language or version.
An illustrative check: choose your city manually on a weather page, block its location permission, reload, then see whether the forecast still works. This establishes what that task needs on that site; it is not a test of every service.
When Allow does not solve the problem
A browser permission and the computer’s location setting are separate controls. Chrome may point you to Windows or macOS settings if location is disabled there. On a managed work or school computer, an administrator may control the setting.
Before changing anything broader, check the site’s permission again and note the error. After a temporary use, revisit the permission. Revoking it changes future access through this permission; do not assume it deletes information already supplied to the site. Review the site’s privacy explanation for that question.