Recent forecast models from sources like GFS indicate Cape Town's overnight low on September 25 will likely hover near 14°C amid scattered showers, northwest winds, and persistent cloud cover that limits radiative cooling. This transitional spring pattern, influenced by Atlantic frontal systems, keeps temperatures above seasonal averages while introducing variability in exact minima depending on timing of precipitation and wind shifts. Trader consensus reflects this narrow band of uncertainty, with comparable implied probabilities for outcomes above 20°C or below 10°C highlighting sensitivity to minor forecast revisions ahead of final observational data from official stations.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Cape Town on September 25?
10°C or below 95%
20°C or higher 95%
11°C 40%
12°C 40%
10°C or below
95%
11°C
40%
12°C
40%
13°C
40%
14°C
40%
15°C
39%
16°C
22%
17°C
22%
18°C
22%
19°C
4%
20°C or higher
95%
10°C or below 95%
20°C or higher 95%
11°C 40%
12°C 40%
10°C or below
95%
11°C
40%
12°C
40%
13°C
40%
14°C
40%
15°C
39%
16°C
22%
17°C
22%
18°C
22%
19°C
4%
20°C or higher
95%
The resolution source for this market will be information from NOAA, specifically the lowest 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 23, 2026, 12:31 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=factResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the lowest 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...Recent forecast models from sources like GFS indicate Cape Town's overnight low on September 25 will likely hover near 14°C amid scattered showers, northwest winds, and persistent cloud cover that limits radiative cooling. This transitional spring pattern, influenced by Atlantic frontal systems, keeps temperatures above seasonal averages while introducing variability in exact minima depending on timing of precipitation and wind shifts. Trader consensus reflects this narrow band of uncertainty, with comparable implied probabilities for outcomes above 20°C or below 10°C highlighting sensitivity to minor forecast revisions ahead of final observational data from official stations.
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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