Recent National Weather Service guidance and ensemble model runs indicate overnight lows in Chicago on August 25 will hinge on radiational cooling under mostly clear skies, with northwesterly flow advecting cooler Canadian air behind a weak frontal boundary. Surface winds near 5 mph and dew points in the mid-50s support efficient heat loss after sunset, while any increase in cloud cover or southerly mixing could limit the drop to the low 60s. Historical August 25 normals near 64°F at O’Hare provide context, yet the current pattern favors readings several degrees below average, explaining why market-implied odds cluster tightly between the 56–61°F bins with meaningful probability on cooler tails. Updated model consensus and the 6 p.m. NWS forecast discussion tomorrow will likely resolve remaining uncertainty before midnight observations finalize the outcome.
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 25 de agosto?
68°F or higher 54%
49°F or below 53%
52-53°F 48%
54-55°F 47%
49°F or below
53%
50-51°F
39%
52-53°F
48%
54-55°F
47%
56-57°F
30%
58-59°F
39%
60-61°F
26%
62-63°F
26%
64-65°F
26%
66-67°F
26%
68°F or higher
54%
68°F or higher 54%
49°F or below 53%
52-53°F 48%
54-55°F 47%
49°F or below
53%
50-51°F
39%
52-53°F
48%
54-55°F
47%
56-57°F
30%
58-59°F
39%
60-61°F
26%
62-63°F
26%
64-65°F
26%
66-67°F
26%
68°F or higher
54%
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.
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 23, 2026, 9:29 PM ET
Fonte de resolução
https://www.weather.gov/wrh/timeseries?site=kordResolver
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=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
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...Recent National Weather Service guidance and ensemble model runs indicate overnight lows in Chicago on August 25 will hinge on radiational cooling under mostly clear skies, with northwesterly flow advecting cooler Canadian air behind a weak frontal boundary. Surface winds near 5 mph and dew points in the mid-50s support efficient heat loss after sunset, while any increase in cloud cover or southerly mixing could limit the drop to the low 60s. Historical August 25 normals near 64°F at O’Hare provide context, yet the current pattern favors readings several degrees below average, explaining why market-implied odds cluster tightly between the 56–61°F bins with meaningful probability on cooler tails. Updated model consensus and the 6 p.m. NWS forecast discussion tomorrow will likely resolve remaining uncertainty before midnight observations finalize the outcome.
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