See the latest station observation, past reports, and forecast models on supported Kalshi and Polymarket weather contracts.
Interactive preview · drag the timeline to inspect observations and forecasts
Read the latest METAR from the station used by the contract.
Scrub past station reports and the forward forecast on one timeline.
Switch forecast models while keeping the same station and contract window.
Add Mostly Right from the Chrome Web Store. Processing stays in your browser.
On Kalshi or Polymarket, the extension reads the contract's station and settlement rule.
The latest observation, prior reports, and forecasts appear on the contract page.
Free · works on supported Kalshi and Polymarket weather markets