According to the latest hourly forecast from Wunderground for LFPG (CDG Airport), the high for March...

Weather prediction is a niche market. While not completely obscure (everyone checks forecasts), it is relatively exotic as a betting subject unless for specific commodity traders or locals. It is more exotic than political elections but far more regular than questions like 'Will Jesus resurrect?'.

March 21-22, 2026, the price of 16°C surged from 11.5c to 35c, while 14°C crashed from over 30c to 16c. The reason is that despite forecasts of an incoming cold front, the market seemingly reacted to yesterday's (March 21) actual high of 16.1°C by over-betting on the warmth persisting, leading to a sell-off of the cooling option (14°C) and chasing the warmer option (16°C). Evening of March 20, 2026, 14°C rebounded strongly from intraday lows to 36.5c, while 15°C retraced, as the market fine-tuned expectations after digesting 'warming' news. Daytime of March 20, 2026, 15°C surged from 24c to 40c, while 13°C and 12°C collapsed, as weather models ruled out strong cold air.

Significant divergence exists. Market prices imply a 35% chance of 16°C, reflecting an expectation for yesterday's warmth to persist. However, mainstream weather media (e.g., Connexion France, Meteoprog) cite a cold front and rain, forecasting a drop to 13-14°C. The market appears to be ignoring the cooling effect of the front, causing 16°C to be overvalued, while 14°C—which aligns better with media forecasts—is undervalued.

It is currently 14:06 local time in Shanghai on March 22, near the peak heating time of the day. Mar...

March 22, 2026 (Shanghai AM to Noon), the price of '17°C' crashed from 49c to near 0c, while '18°C' surged from 35c to 86c. The reason is that as the day progressed in Shanghai, real-time temperature readings breached the 17.5°C threshold, effectively eliminating the 17°C option and causing capital to consolidate rapidly into 18°C. March 21, 2026 (Late PM), '17°C' established a brief lead, with its price surging from 21c to 44c, while '18°C' plummeted from a high of 49c to 32.5c. The reason was that early nowcasting models revised the expected daily high downwards, causing the market consensus to temporarily flip from 18°C to 17°C. March 19 - March 21, 2026, '16°C' experienced a crash, plummeting from 21.5c to 4.5c, as meteorological data completely falsified previous cooling expectations. March 18 - March 21, 2026, the price of '21°C or higher' collapsed from 27.5c to 1.6c, indicating that the possibility of extreme heat has been completely ruled out.

Synthesizing the latest forecasts from Fox 5 (86°F), 11Alive (85°F), and AccuWeather (84°F), the mar...

March 20, 2026 - March 21, 2026, the price of '84-85°F' climbed from 29c to 42c (settling at 40.5c), while '80-81°F' crashed from 14.5c to 5.5c. This was driven by converging forecast models (AccuWeather, 11Alive) pointing specifically to highs around 84°F as the event neared, causing the market to dump cooler options (<82°F) and consolidate into the core range. March 18, 2026 - March 20, 2026, the price of '84-85°F' surged from 19c to 31c as local media outlets released specific forecasts favoring this band, breaking the previous widespread uncertainty.

The core logic is based on 'Cumulative Base + Remaining Capacity Projection'. 1. **Cumulative Base**...

March 20-22, 2026, the price of '45+' crashed from ~40c to 20c, as extremely low early data (only 1 ship reported openly on Mar 20) shattered hopes for a 'rapid V-shaped recovery', forcing investors to realize time is running out to close the deficit. March 19-21, 2026, the price of '30-34' rose from 4.5c to 14c, as the '19 cumulative' reality set in, prompting a hedge against 'slow recovery' risks where failing to exceed 8 ships/day would drop the total into lower brackets.

Significant divergence exists between market pricing and fundamentals. The market assigns a 24% probability to '45+', implying a requirement of >26 ships in the final 48 hours (>13 ships/day). However, mainstream reports (e.g., Lloyd's List) highlight that the current 'safe corridor' involves time-consuming vessel-by-vessel verification, with only 1 ship reported openly on Mar 20. This bottleneck contradicts the valuation of '45+', with fundamentals favoring '35-39' (steady recovery) or '30-34' (friction/delays).

Synthesizing real-time data from Wunderground, Google Weather, and AccuWeather, the forecast for Mun...

2026-03-21 - 2026-03-22, the price of 12°C fluctuated wildly from 13c to 23.5c, as the market reassessed its value as the primary hedge against the 13°C favorite. 2026-03-19 - 2026-03-21, the price of 13°C surged from 24c to a peak of 47.5c (settling at 43c), driven by weather models converging on an upgraded forecast of 13°C (55°F). 2026-03-19 - 2026-03-20, the price of 11°C plummeted from 28.5c to 2.5c, as warming forecasts turned this former favorite into an unlikely outlier.

Polymarket's pricing of 14°C (27¢) is significantly higher than implied by mainstream models. While Wunderground briefly forecasted 14°C (57°F), current data from Google and AccuWeather points to 13°C (55°F), with local German models favoring 12°C. The market appears to be over-hedging the upside risk, leaving 14°C overvalued.