San Francisco (KSFO) is currently 21.7°C. Today's high so far is 22.2°C (reached 05:56 local). Yesterday's high was 22.8°C.
🧪 Beta — San Francisco 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.
SFO's bay-side marine influence keeps highs cool and the daily range narrow — a low-variance market; this beta tracks the 5-minute ASOS. polyweather.today tracks minute-by-minute runway temperatures from San Francisco Int'l (KSFO) (KSFO) — the same sensors behind the official METAR — and turns the trend into a next-METAR nowcast, so you can read where San Francisco's temperature is heading before the next METAR prints.
Beijing is free to view without an account; San Francisco 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 San Francisco's temperature market settles (which station, what precision, what rounding)? See how each city settles →
View-only data — not betting or financial advice.