Recent official observations from the National Weather Service at Chicago O’Hare recorded a minimum temperature of 65°F on August 27, 2026, placing the daily low squarely in the market’s dominant 66-67°F bin with near-certainty. Light overnight winds, clear skies, and modest radiative cooling under a stable high-pressure pattern limited further temperature drops, keeping the reading just above the 1991–2020 climatological normal of 64°F. Pre-event forecast models had converged on mid-60s overnight lows, reinforcing trader confidence in this narrow range. A realistic challenge would require either a last-minute surge in cloud cover trapping heat or a verified discrepancy between official stations and alternative measurement sites, though NWS data governs resolution.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · AtualizadoTemperatura mais baixa em Chicago em 27 de agosto?
66-67°F 99.1%
60-61°F 1.0%
64-65°F 1.0%
55°F or below <1%
$4,031 Vol.
$4,031 Vol.
55°F or below
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
Yes
68-69°F
No
70-71°F
No
72-73°F
No
74°F or higher
No
66-67°F 99.1%
60-61°F 1.0%
64-65°F 1.0%
55°F or below <1%
$4,031 Vol.
$4,031 Vol.
55°F or below
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
Yes
68-69°F
No
70-71°F
No
72-73°F
No
74°F 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=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
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 US Units w/ kts" button until the relevant table displays °F.
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 Fahrenheit (eg, 21°F). 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.
Mercado Aberto: Aug 25, 2026, 9:29 PM ET
Fonte de resolução
https://www.weather.gov/wrh/timeseries?site=kordResolver
0x69c47De9D...Resultado proposto: No
Sem contestação
Resultado final: 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=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
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 US Units w/ kts" button until the relevant table displays °F.
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 Fahrenheit (eg, 21°F). 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.
Fonte de resolução
https://www.weather.gov/wrh/timeseries?site=kordResolver
0x69c47De9D...Resultado proposto: No
Sem contestação
Resultado final: No
Recent official observations from the National Weather Service at Chicago O’Hare recorded a minimum temperature of 65°F on August 27, 2026, placing the daily low squarely in the market’s dominant 66-67°F bin with near-certainty. Light overnight winds, clear skies, and modest radiative cooling under a stable high-pressure pattern limited further temperature drops, keeping the reading just above the 1991–2020 climatological normal of 64°F. Pre-event forecast models had converged on mid-60s overnight lows, reinforcing trader confidence in this narrow range. A realistic challenge would require either a last-minute surge in cloud cover trapping heat or a verified discrepancy between official stations and alternative measurement sites, though NWS data governs resolution.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · Atualizado
Cuidado com os links externos.
Cuidado com os links externos.
Frequently Asked Questions