**Trader consensus has coalesced around a 17°C low for Jinan on September 29, 2026, with market-implied odds at 95% for that exact threshold.** This positioning reflects the latest ensemble forecast guidance showing overnight radiative cooling under mostly clear to partly cloudy skies, with surface winds shifting from southwesterly to northerly and dew points supporting a minimum near 17–18°C before any light rain develops. Official model runs align with climatological September averages for the region while incorporating recent high-pressure influence that limits cloud cover and moisture. Scenarios that could realistically challenge this include a faster arrival of the forecasted light rain band, which would raise the overnight minimum through latent heat release, or revisions in the final observational data from the primary reporting station if localized urban heat effects or measurement timing differ from model assumptions.