Current numerical weather prediction models, including those from the South African Weather Service, indicate a maximum temperature near 17°C for Cape Town on June 11 under typical mid-winter conditions driven by the South Atlantic subtropical high and variable cold-front passages. Ensemble forecasts show modest spread around this value, with slight warming possible from reduced cloud cover or a weaker onshore flow, supporting the tight clustering of market-implied odds between 16°C and 19°C. Historical June maxima average 16–18°C, and the absence of strong anomalous signals such as an intense heat ridge or rapid cold outbreak keeps probabilities balanced near the seasonal norm while leaving room for last-minute model adjustments ahead of resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Cape Town on June 11?
17°C 43%
18°C 28%
16°C 18%
19°C 13%
11°C or below
<1%
12°C
1%
13°C
1%
14°C
1%
15°C
6%
16°C
13%
17°C
43%
18°C
28%
19°C
13%
20°C
6%
21°C or higher
1%
17°C 43%
18°C 28%
16°C 18%
19°C 13%
11°C or below
<1%
12°C
1%
13°C
1%
14°C
1%
15°C
6%
16°C
13%
17°C
43%
18°C
28%
19°C
13%
20°C
6%
21°C or higher
1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Cape Town International Airport Station, available here: https://www.wunderground.com/history/daily/za/matroosfontein/FACT.
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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Jun 9, 2026, 1:13 AM ET
Resolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Cape Town International Airport Station, available here: https://www.wunderground.com/history/daily/za/matroosfontein/FACT.
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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
0x69c47De9D...Current numerical weather prediction models, including those from the South African Weather Service, indicate a maximum temperature near 17°C for Cape Town on June 11 under typical mid-winter conditions driven by the South Atlantic subtropical high and variable cold-front passages. Ensemble forecasts show modest spread around this value, with slight warming possible from reduced cloud cover or a weaker onshore flow, supporting the tight clustering of market-implied odds between 16°C and 19°C. Historical June maxima average 16–18°C, and the absence of strong anomalous signals such as an intense heat ridge or rapid cold outbreak keeps probabilities balanced near the seasonal norm while leaving room for last-minute model adjustments ahead of resolution.
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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