Release notes

Changes to the API, newest first. Dates are the day a change reached every region. Additive changes are listed for information; changes that alter an existing shape are announced under Upcoming changes at least ninety days before they take effect.

Upcoming changes

2026-09-15 Latest

• fields on the hourly forecast accepts precipitation, returning probability and expected amount, and cloudCover. → Hourly forecast
• X-Limit-Hour is now sent on every response, not only when the minute window is low.
• The hour window is charged in cost units; existing budgets were converted so that no client pays more than before. → Request costs
• The weather alerts endpoint opens in beta for the Business and Enterprise plans. → Weather alerts
• The synthetic station TEST-01 accepts simulate to reproduce any error code. → Error codes

2026-07-02

• Readings older than fifteen minutes carry stale: true instead of being withheld.
• The station_retired error replaces a generic 404 for stations that stopped reporting permanently.
• Observation history accepts step=1d, returning daily means with the minimum and maximum temperature.
• Station detail returns timezone, sensors and since.

2026-05-20

• Daily forecast endpoint added, up to seven days ahead. → Daily forecast
• Every cached response carries an ETag, and a 304 answer counts against no window. → Caching
• The station directory paginates with limit up to 200 rows and a page.next cursor.

2026-04-10

• First public release of /v1: current conditions, hourly forecast, observation history and the station directory.
• Community, Team and Business plans; Enterprise by arrangement.
• Test keys and the synthetic station TEST-01.