polyweather.today · Seattle · KSEA

🧪 Beta — Seattle runs on a third-party live feed. The minute-level runway curve and slope are live; the decision light, next-METAR nowcast and hit-rate aren't calibrated for this station yet.

Live Seattle (KSEA) runway temperature & next-METAR nowcast

Seattle's marine Pacific-Northwest summers are mild; this beta tracks Sea-Tac's 5-minute ASOS, ahead of the hourly METAR. polyweather.today tracks minute-by-minute runway temperatures from Seattle-Tacoma Int'l (KSEA) (KSEA) — the same sensors behind the official METAR — and turns the trend into a next-METAR nowcast, so you can read where Seattle's temperature is heading before the next METAR prints.

What this page shows

• Runway-minute temperatures — per-runway-end readings updated every minute.
• Next-METAR nowcast — a backtested estimate of the next METAR's rounded temperature (Pro).
• Decision light — a live read on whether the signal is reliable (Pro).
• Today's high — the running daily-high METAR reading, with its peak timestamp.

Beijing is free to view without an account; Seattle and the other cities need a free login for live data, with real-time decision signals on Pro — see Free vs Pro →

Want to know exactly how Seattle's temperature market settles (which station, what precision, what rounding)? See how each city settles →

View-only data — not betting or financial advice.