Trader consensus on Polymarket has locked in a 100% implied probability for a highest temperature of 17°C at Wuhan Tianhe International Airport on April 21, 2026, backed by official METAR observations confirming a midday peak of exactly 17°C amid persistent cloud cover, light rain, and northerly winds. This marks a sharp cooldown from 28°C highs earlier in the week, driven by a passing frontal system that suppressed solar heating and introduced atmospheric instability, well below April climatological norms of around 22°C. With sunset approaching and overnight lows forecast near 11°C under continued showers per China Meteorological Administration guidance, realistic challenges like sudden clearing are improbable, as model ensembles show no significant warming potential remaining.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Wuhan on April 21?
17°C 100.0%
8°C or below <1%
9°C <1%
10°C <1%
$70,396 Vol.
$70,396 Vol.
8°C or below
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
Yes
18°C or higher
No
17°C 100.0%
8°C or below <1%
9°C <1%
10°C <1%
$70,396 Vol.
$70,396 Vol.
8°C or below
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
Yes
18°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Wuhan Tianhe International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/wuhan/ZHHH.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 19, 2026, 12:07 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/wuhan/ZHHHResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Wuhan Tianhe International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/wuhan/ZHHH.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/cn/wuhan/ZHHHResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket has locked in a 100% implied probability for a highest temperature of 17°C at Wuhan Tianhe International Airport on April 21, 2026, backed by official METAR observations confirming a midday peak of exactly 17°C amid persistent cloud cover, light rain, and northerly winds. This marks a sharp cooldown from 28°C highs earlier in the week, driven by a passing frontal system that suppressed solar heating and introduced atmospheric instability, well below April climatological norms of around 22°C. With sunset approaching and overnight lows forecast near 11°C under continued showers per China Meteorological Administration guidance, realistic challenges like sudden clearing are improbable, as model ensembles show no significant warming potential remaining.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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