A dominant market consensus around an 18°C maximum in Cape Town on June 4 reflects official forecasts from the South African Weather Service indicating that a cut-off low-pressure system will deliver cool, windy conditions primarily to the interior and eastern Western Cape, with lighter impacts along the peninsula. Model guidance shows daytime highs near the long-term June average of 17–18°C, supported by historical climatology from sources like WeatherSpark and AccuWeather monthly outlooks. The resolution hinges on verified observations of the daily peak, with any significant deviation possible only from unexpected intensification or steering shifts in the system that could suppress temperatures further.
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 4?
18°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$26,154 Vol.
$26,154 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C or higher
No
18°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$26,154 Vol.
$26,154 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°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 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 2, 2026, 12:08 AM ET
Resolution Source
https://www.wunderground.com/history/daily/za/matroosfontein/FACTResolver
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 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...Outcome proposed: No
No dispute
Final outcome: No
A dominant market consensus around an 18°C maximum in Cape Town on June 4 reflects official forecasts from the South African Weather Service indicating that a cut-off low-pressure system will deliver cool, windy conditions primarily to the interior and eastern Western Cape, with lighter impacts along the peninsula. Model guidance shows daytime highs near the long-term June average of 17–18°C, supported by historical climatology from sources like WeatherSpark and AccuWeather monthly outlooks. The resolution hinges on verified observations of the daily peak, with any significant deviation possible only from unexpected intensification or steering shifts in the system that could suppress temperatures further.
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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