Highest temperature in Shanghai on June 21?

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Market context

Shanghai has been tracking a fairly warm but not extreme June pattern at Pudong airport, with typical daily highs there rising from about 77°F to 83°F through the month, while the chance of wet days also climbs towards late June. That matters because a hot spell still needs a dry enough break in the plum-rain season to push the airport’s daytime maximum into the upper end of the monthly range; the current 0% yes pricing implies traders are not seeing a credible route to a standout heat reading at the measurement site.

Historical and seasonal comparables point to a centre of gravity around the low- to mid-80s °F, or roughly 27–29°C, with highs above 92°F described as rare for June at Pudong airport. Broader Shanghai June guides also show a hot-and-humid setup in which cloudy or rainy days often cap highs around 25–30°C, while hotter sunny days can briefly reach 30–35°C. In practice, that means outcomes above the usual climatological band require both stronger sun and lighter rain influence than is common for the month.

The main catalysts over the rest of the day are any updated local forecasts for Shanghai, especially changes in rain timing, cloud cover, and wind, because those directly affect the day’s maximum temperature. For this contract, the key dependency is the airport station itself and the reported daily high on Wunderground, so traders will be watching whether the forecast nudges towards a clearer, warmer afternoon or keeps signalling light rain and suppressed highs.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shanghai on June 21? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Prediction Today — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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