Seattle - Weather Index

Map Buy this city's data

United States · north-america · KSEA · 47.61, -122.33 · 2026-11-13 15:00:59 EST · run_1hyxg1nZGV

Current consensus index

WDI Index

45.5

TDI

52.8

12.2°C

84% · 3.5 m/s · 0 mm

sources 9MAD ±0.3°highunverified

What the free view shows - and what it does not

Free: the current consensus above and the next 3 days of forecast below. Not shown without a subscription or API credits: the consensus time series, every source's raw reading, the 16-day forecast, the last 7 days and the 5-minute observation log.

Subscribe to this city (unlimited) or use metered credits (per call, for republishing to your own customers). Need a verdict on a condition rather than the data? Open a determination - met, not met or withheld, with reasons.

Station day · KSEA

Two official-grade values side by side: our METAR-derived extremes (anchored station record) and the NWS daily climate report (CLI) that US markets settle on.

Local day	METAR high (°C)	METAR low (°C)	Record	Consensus high (°C)	Consensus low (°C)	NWS high (°C)	NWS low (°C)	NWS precip (mm)	NWS CLI	Δ high	Δ low	Δc high	Δc low
2026-11-12	16.1	10.6	final · report gap · ⛓	15.2	10.7	16.1	10.0	0	issued↗	-0.0	+0.6	-0.9	+0.7
2026-11-11	18.9	11.1	final · settleable · ⛓	17.9	11.5	19.4	11.1	0	issued↗	-0.5	-0.0	-1.5	+0.4

Δ = METAR minus NWS. Expect up to about a degree: the CLI is built from the 1-minute ASOS record, and its day runs on local standard time while the METAR day follows daylight saving. ⛓ marks a record anchored on Flare. Full reports, finality, corrections and the NWS product text come from the station API. Consensus high/low = extremes of the hourly consensus index re-cut on the same station-local day (24 samples on a complete day, so it sits inside the METAR and CLI extremes by design); Δc = consensus minus NWS. Subscribers see the last 7 days. · METAR Watch · NWS CLI Watch · API

Rules & verdict method

Measurement basis: the observation class - airport METAR KSEA and KWeather - not any single station, and not the models
Each measurement feed is compared with the consensus inside fixed tolerances. The tolerance values are part of the proprietary rule and are not published.
Index = a robust per-metric consensus with outlier rejection, bounded to the fresh station observation within the tolerance where one exists; outliers are excluded and flagged. The rule is fixed, and every run is hash-anchored on-chain so it cannot be changed afterwards. Its parameters are not published.
Verdict: counted over fresh observation-class sources only. verified when more agree with the consensus than disagree and at least two agree; single_source when one agreed and none dissented - real corroboration, but thin; mixed when agree and disagree are tied, which is undecided rather than a pass; mismatch when more diverge than agree; unverified when no fresh observation could be read. The agree/disagree/stale counts ship with the verdict. Settlement logic should normally accept verified only.

Latest verdict: unverified0 agree / 0 disagree
Diverging sources: meteofrance
Reference time: 2026-11-13 15:00:59 EST

16-day forecast · 3/16 days free

date	tavg°C	tmax°C	tmin°C	precip	humidity	wind
2026-11-13	11.6	13.5	10.4	2.2	76	2.3
2026-11-14	9.8	12.7	9.1	1.1	81	4.1
2026-11-15	11	12.5	8.9	12.23	77	4.6