The dominant market positioning on an 88-89°F high for Atlanta on May 20 stems from National Weather Service surface observations showing a verified daily maximum in that narrow range under a warm, moist southerly flow from the Gulf of Mexico. Late-spring climatology for the region supports this outcome, with historical averages near 82°F and recent model guidance indicating limited daytime heating due to scattered cloud cover and a weak frontal boundary. Trader consensus treats the official station data as the resolution benchmark, minimizing uncertainty around instrument calibration or microclimate effects. Only an unusually strong heat burst or post-event data revision would realistically shift the outcome toward the low-probability 92-93°F bin.
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 20?
88-89°F 100.0%
83°F or below <1%
84-85°F <1%
86-87°F <1%
$36,614 Vol.
$36,614 Vol.
83°F or below
No
84-85°F
No
86-87°F
No
88-89°F
Yes
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°F or higher
No
88-89°F 100.0%
83°F or below <1%
84-85°F <1%
86-87°F <1%
$36,614 Vol.
$36,614 Vol.
83°F or below
No
84-85°F
No
86-87°F
No
88-89°F
Yes
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°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 18, 2026, 12:12 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ga/atlanta/KATLResolver
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 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: No
No dispute
Final outcome: No
The dominant market positioning on an 88-89°F high for Atlanta on May 20 stems from National Weather Service surface observations showing a verified daily maximum in that narrow range under a warm, moist southerly flow from the Gulf of Mexico. Late-spring climatology for the region supports this outcome, with historical averages near 82°F and recent model guidance indicating limited daytime heating due to scattered cloud cover and a weak frontal boundary. Trader consensus treats the official station data as the resolution benchmark, minimizing uncertainty around instrument calibration or microclimate effects. Only an unusually strong heat burst or post-event data revision would realistically shift the outcome toward the low-probability 92-93°F bin.
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