Trader consensus on Polymarket overwhelmingly favors an 18°C high temperature in Cape Town on May 5, 2026, at nearly 100% implied probability, driven by the South African Weather Service (SAWS) official forecast of a maximum 18°C amid an intense cut-off low pressure system ushering cold air, cloudy skies, and isolated showers over the Western Cape. This synoptic feature has suppressed daytime heating through persistent cloud cover and southerly winds, with model ensembles from SAWS aligning closely on this outcome, consistent with intraday METAR observations so far. Scenarios challenging this include unexpected afternoon clearing for enhanced solar insolation or localized warmer pockets near Cape Town International Airport, the market's resolution station, though current atmospheric conditions make 19°C or higher unlikely absent rapid forecast revisions. SAWS updates expected later today could refine this 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 May 5?
18°C 100.0%
9°C or below <1%
10°C <1%
11°C <1%
$43,518 Vol.
$43,518 Vol.
9°C or below
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C or higher
No
18°C 100.0%
9°C or below <1%
10°C <1%
11°C <1%
$43,518 Vol.
$43,518 Vol.
9°C or below
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°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 Cape Town International Airport Station once information is finalized, 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 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: May 3, 2026, 12:21 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 by the Forecast for the Cape Town International Airport Station once information is finalized, 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 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/za/matroosfontein/FACTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket overwhelmingly favors an 18°C high temperature in Cape Town on May 5, 2026, at nearly 100% implied probability, driven by the South African Weather Service (SAWS) official forecast of a maximum 18°C amid an intense cut-off low pressure system ushering cold air, cloudy skies, and isolated showers over the Western Cape. This synoptic feature has suppressed daytime heating through persistent cloud cover and southerly winds, with model ensembles from SAWS aligning closely on this outcome, consistent with intraday METAR observations so far. Scenarios challenging this include unexpected afternoon clearing for enhanced solar insolation or localized warmer pockets near Cape Town International Airport, the market's resolution station, though current atmospheric conditions make 19°C or higher unlikely absent rapid forecast revisions. SAWS updates expected later today could refine this 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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