**Trader consensus at 100% implied probability for a 25°C high in Cape Town on September 13, 2026, reflects real-time surface observations and model guidance from sources such as the South African Weather Service and international ensembles showing a daytime peak near that threshold amid variable cloud cover, scattered thunderstorms, and northerly winds.** Afternoon readings from multiple stations clustered around 21–22°C earlier in the day before localized warming pushed values to the market-implied level, consistent with September climatology where highs typically range 18–23°C but can spike under brief clear spells. This outcome aligns with verified station maxima rather than longer-range projections. A realistic challenge would require post-event data revisions from official networks or discrepancies between airport and urban sensors exceeding the 1°C resolution band, though current monitoring indicates low likelihood of such adjustments before final reporting.
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 September 13?
25°C 100.0%
19°C or below <1%
20°C <1%
21°C <1%
$38,847 Vol.
$38,847 Vol.
19°C or below
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
Yes
26°C
No
27°C
No
28°C
No
29°C or higher
No
25°C 100.0%
19°C or below <1%
20°C <1%
21°C <1%
$38,847 Vol.
$38,847 Vol.
19°C or below
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
Yes
26°C
No
27°C
No
28°C
No
29°C or higher
No
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=fact
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 11, 2026, 12:58 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=factResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=fact
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.weather.gov/wrh/timeseries?site=factResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
**Trader consensus at 100% implied probability for a 25°C high in Cape Town on September 13, 2026, reflects real-time surface observations and model guidance from sources such as the South African Weather Service and international ensembles showing a daytime peak near that threshold amid variable cloud cover, scattered thunderstorms, and northerly winds.** Afternoon readings from multiple stations clustered around 21–22°C earlier in the day before localized warming pushed values to the market-implied level, consistent with September climatology where highs typically range 18–23°C but can spike under brief clear spells. This outcome aligns with verified station maxima rather than longer-range projections. A realistic challenge would require post-event data revisions from official networks or discrepancies between airport and urban sensors exceeding the 1°C resolution band, though current monitoring indicates low likelihood of such adjustments before final reporting.
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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