Recent National Weather Service forecasts and model consensus for Atlanta on May 21 pointed to a high in the low-to-mid 80s°F under partly cloudy skies with a moderating southerly flow, well below seasonal heat-wave thresholds. This aligned with mid-May climatological normals near 82–84°F at Hartsfield-Jackson Atlanta International Airport and the absence of a strong subtropical ridge or downslope warming that would push readings toward 88°F or higher. Traders therefore assigned near-certain probability to the 87°F-or-below outcome, reflecting verified observational data and the low likelihood of last-minute intensification. Only an unexpected clear-sky surge or measurement revision at the official station could alter the result before final resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Atlanta on May 21?
87°F or below 100.0%
88-89°F <1%
90-91°F <1%
92-93°F <1%
$37,838 Vol.
$37,838 Vol.
87°F or below
Yes
88-89°F
No
90-91°F
No
92-93°F
No
94-95°F
No
96-97°F
No
98-99°F
No
100-101°F
No
102-103°F
No
104-105°F
No
106°F or higher
No
87°F or below 100.0%
88-89°F <1%
90-91°F <1%
92-93°F <1%
$37,838 Vol.
$37,838 Vol.
87°F or below
Yes
88-89°F
No
90-91°F
No
92-93°F
No
94-95°F
No
96-97°F
No
98-99°F
No
100-101°F
No
102-103°F
No
104-105°F
No
106°F 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 Hartsfield-Jackson International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/ga/atlanta/KATL.
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 Fahrenheit (eg, 21°F). 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 19, 2026, 12:26 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ga/atlanta/KATLResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
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 Hartsfield-Jackson International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/ga/atlanta/KATL.
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 Fahrenheit (eg, 21°F). 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/us/ga/atlanta/KATLResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
Recent National Weather Service forecasts and model consensus for Atlanta on May 21 pointed to a high in the low-to-mid 80s°F under partly cloudy skies with a moderating southerly flow, well below seasonal heat-wave thresholds. This aligned with mid-May climatological normals near 82–84°F at Hartsfield-Jackson Atlanta International Airport and the absence of a strong subtropical ridge or downslope warming that would push readings toward 88°F or higher. Traders therefore assigned near-certain probability to the 87°F-or-below outcome, reflecting verified observational data and the low likelihood of last-minute intensification. Only an unexpected clear-sky surge or measurement revision at the official station could alter the result before final resolution.
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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