**Persistent high humidity and cloud cover from subtropical monsoon conditions are limiting overnight radiative cooling in Guangzhou, keeping the minimum temperature elevated.** On August 28, 2026, forecasts from multiple sources show overnight lows clustered around 27–28°C (roughly 80–82°F), with dew points near 27–28°C and frequent thunderstorms or overcast skies preventing the typical drop toward the long-term average low of 25.2°C. Recent model runs and surface observations confirm warm advection and high moisture content, consistent with late-August climatology in the region where daily lows rarely fall below 24°C without a strong frontal passage. This setup positions 26°C as the leading market outcome at 56% implied probability, as traders incorporate the latest observational data showing sustained warmth rather than a sharper cooldown. Updated evening and overnight readings from local stations will refine resolution near the 26–27°C threshold.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Guangzhou on August 28?
26°C 100.0%
24°C 2%
21°C or below <1%
22°C <1%
$1,688 Vol.
$1,688 Vol.
21°C or below
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C
No
29°C
No
30°C
No
31°C or higher
No
26°C 100.0%
24°C 2%
21°C or below <1%
22°C <1%
$1,688 Vol.
$1,688 Vol.
21°C or below
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C
No
29°C
No
30°C
No
31°C or higher
No
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=zggg
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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: Aug 26, 2026, 12:31 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zgggResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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=zggg
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.weather.gov/wrh/timeseries?site=zgggResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
**Persistent high humidity and cloud cover from subtropical monsoon conditions are limiting overnight radiative cooling in Guangzhou, keeping the minimum temperature elevated.** On August 28, 2026, forecasts from multiple sources show overnight lows clustered around 27–28°C (roughly 80–82°F), with dew points near 27–28°C and frequent thunderstorms or overcast skies preventing the typical drop toward the long-term average low of 25.2°C. Recent model runs and surface observations confirm warm advection and high moisture content, consistent with late-August climatology in the region where daily lows rarely fall below 24°C without a strong frontal passage. This setup positions 26°C as the leading market outcome at 56% implied probability, as traders incorporate the latest observational data showing sustained warmth rather than a sharper cooldown. Updated evening and overnight readings from local stations will refine resolution near the 26–27°C threshold.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions