Cookies & browser storage

Last updated August 31, 2026

We use very few. Reading weather pages requires no cookies at all - you'll only pick up a session cookie if you log in, and a couple of preference keys if you change how the site looks.

This page is about the website. The WeatherMetro app sets no cookies; what it keeps on your phone, and what it sends where, is in the privacy policy.

What's set, and when

NAMETYPEPURPOSELIFETIME
weathermetro_sessionCookie - essentialKeeps you logged in and ties form submissions to your sessionSession / 2 hours idle
XSRF-TOKENCookie - essentialProtects forms against cross-site request forgerySession
remember_web_*Cookie - essentialOnly if you tick "remember me" at loginUntil logout / expiry
wm-unitLocal storage - preferenceWhether you read temperatures in °C or °FUntil you clear it
wm-skyLocal storage - preferenceTime-of-day theme, if you override the automatic oneUntil you clear it
_gaCookie - analyticsGoogle Analytics: tells one browser from another so a return visit is not counted as a new person2 years
_ga_*Cookie - analyticsGoogle Analytics: keeps the current visit together as one session2 years

Local storage entries never leave your browser - they're read by the page itself, not sent to our servers, which is why your unit preference survives without an account.

Analytics and advertising

We use Google Analytics 4 to count page views and see which parts of the site get used - which weather pages, whether the docs are read, whether anyone reaches the pricing page. It sets the two cookies above.

What we deliberately do not do with it: no advertising features, no remarketing, no Google Signals, no cross-device or cross-site profiles, and no user IDs - a logged-in account is never joined to its analytics. Google Analytics 4 does not record full IP addresses. We look at totals; we are not trying to follow an individual around.

You can opt out with Google's browser add-on, or by blocking the cookies below - the site works identically either way.

We run no advertising cookies and no ad-network trackers of any kind.

Third parties

Three things load from outside our servers: Google Analytics on every page (above), Stripe on checkout (its own cookies apply, covered by Stripe's privacy policy) and OpenFreeMap base-map tiles on the weather map, which are fetched without cookies.

Managing them

Your browser can block or clear cookies and site data at any time. Blocking the essential ones will log you out and break forms; clearing local storage simply resets your unit and theme preferences to their defaults.

Questions: [email protected]. See also our privacy policy.