Latest ensemble forecasts from major weather models like ECMWF and GFS drive trader sentiment toward a Wellington maximum temperature near 20°C on March 26, with market-implied odds favoring 20°C or higher at 36% amid mostly sunny conditions and light northerly winds. Official MetService projections align closely at 20°C, but a 29.5% probability on exactly 19°C reflects conservative model spreads and potential afternoon sea breeze moderation, which could shave 1-2°C off peaks based on historical March patterns. Tighter odds around 18°C (18%) and 17°C (17.5%) hedge risks from unexpected cloud cover or southerly shifts, while sub-16°C outcomes remain low-probability outliers given seasonal norms averaging 19-20°C highs.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Wellington on March 26?
Highest temperature in Wellington on March 26?
20°C or higher 49%
17°C 32%
19°C 32%
18°C 18%
10°C or below
1%
11°C
1%
12°C
5%
13°C
6%
14°C
15%
15°C
16%
16°C
16%
17°C
18%
18°C
18%
19°C
29%
20°C or higher
38%
20°C or higher 49%
17°C 32%
19°C 32%
18°C 18%
10°C or below
1%
11°C
1%
12°C
5%
13°C
6%
14°C
15%
15°C
16%
16°C
16%
17°C
18%
18°C
18%
19°C
29%
20°C or higher
38%
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 Wellington Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/nz/wellington/NZWN.
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: Mar 22, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/nz/wellington/NZWNResolver
0x69c47De9D...Latest ensemble forecasts from major weather models like ECMWF and GFS drive trader sentiment toward a Wellington maximum temperature near 20°C on March 26, with market-implied odds favoring 20°C or higher at 36% amid mostly sunny conditions and light northerly winds. Official MetService projections align closely at 20°C, but a 29.5% probability on exactly 19°C reflects conservative model spreads and potential afternoon sea breeze moderation, which could shave 1-2°C off peaks based on historical March patterns. Tighter odds around 18°C (18%) and 17°C (17.5%) hedge risks from unexpected cloud cover or southerly shifts, while sub-16°C outcomes remain low-probability outliers given seasonal norms averaging 19-20°C highs.
Experimental AI-generated summary referencing Polymarket data · Updated
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