Recent short-range forecasts from Météo-France and European ensembles indicate a post-heatwave cooldown for Paris on August 18, with weakening high pressure, broken cloud cover, and light winds supporting a daytime maximum near 28–29 °C. After earlier peaks above 37 °C, Atlantic moderation and rising humidity are limiting further warming, aligning with historical late-summer patterns where maxima rarely exceed 30 °C absent strong subsidence. Ensemble clustering around 27–29 °C, combined with low probabilities for extremes, underpins the market’s heavy weighting toward 27 °C and 28 °C as leading outcomes, while traders monitor the final model updates for any shifts in steering flow or insolation.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Paris on August 18?
Highest temperature in Paris on August 18?
27°C 43%
28°C 30%
26°C 15%
29°C 11%
NEW
NEW
Aug 18, 2026
25°C or below
5%
26°C
15%
27°C
43%
28°C
30%
29°C
11%
30°C
4%
31°C
1%
32°C
<1%
33°C
<1%
34°C
<1%
35°C or higher
<1%
27°C 43%
28°C 30%
26°C 15%
29°C 11%
NEW
NEW
Aug 18, 2026
25°C or below
$229 Vol.
5%
26°C
$475 Vol.
15%
27°C
$705 Vol.
43%
28°C
$509 Vol.
30%
29°C
$673 Vol.
11%
30°C
$377 Vol.
4%
31°C
$329 Vol.
1%
32°C
$147 Vol.
<1%
33°C
$327 Vol.
<1%
34°C
$452 Vol.
<1%
35°C or higher
$452 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Paris-Le Bourget Airport Station in degrees Celsius on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Paris-Le Bourget Airport Station, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB.
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 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.Recent short-range forecasts from Météo-France and European ensembles indicate a post-heatwave cooldown for Paris on August 18, with weakening high pressure, broken cloud cover, and light winds supporting a daytime maximum near 28–29 °C. After earlier peaks above 37 °C, Atlantic moderation and rising humidity are limiting further warming, aligning with historical late-summer patterns where maxima rarely exceed 30 °C absent strong subsidence. Ensemble clustering around 27–29 °C, combined with low probabilities for extremes, underpins the market’s heavy weighting toward 27 °C and 28 °C as leading outcomes, while traders monitor the final model updates for any shifts in steering flow or insolation.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Paris-Le Bourget Airport Station in degrees Celsius on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Paris-Le Bourget Airport Station, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB.
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 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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Paris-Le Bourget Airport Station in degrees Celsius on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Paris-Le Bourget Airport Station, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB.
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 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 16, 2026, 12:55 AM ET
Volume
$4,675End Date
Aug 18, 2026Market Opened
Aug 16, 2026, 12:55 AM ETResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Paris-Le Bourget Airport Station in degrees Celsius on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Paris-Le Bourget Airport Station, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB.
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 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.Recent short-range forecasts from Météo-France and European ensembles indicate a post-heatwave cooldown for Paris on August 18, with weakening high pressure, broken cloud cover, and light winds supporting a daytime maximum near 28–29 °C. After earlier peaks above 37 °C, Atlantic moderation and rising humidity are limiting further warming, aligning with historical late-summer patterns where maxima rarely exceed 30 °C absent strong subsidence. Ensemble clustering around 27–29 °C, combined with low probabilities for extremes, underpins the market’s heavy weighting toward 27 °C and 28 °C as leading outcomes, while traders monitor the final model updates for any shifts in steering flow or insolation.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Paris-Le Bourget Airport Station in degrees Celsius on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Paris-Le Bourget Airport Station, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB.
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 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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Paris-Le Bourget Airport Station in degrees Celsius on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Paris-Le Bourget Airport Station, available here: https://www.wunderground.com/history/daily/fr/bonneuil-en-france/LFPB.
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 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.
Volume
$4,675End Date
Aug 18, 2026Market Opened
Aug 16, 2026, 12:55 AM ETResolver
0x69c47De9D...Recent short-range forecasts from Météo-France and European ensembles indicate a post-heatwave cooldown for Paris on August 18, with weakening high pressure, broken cloud cover, and light winds supporting a daytime maximum near 28–29 °C. After earlier peaks above 37 °C, Atlantic moderation and rising humidity are limiting further warming, aligning with historical late-summer patterns where maxima rarely exceed 30 °C absent strong subsidence. Ensemble clustering around 27–29 °C, combined with low probabilities for extremes, underpins the market’s heavy weighting toward 27 °C and 28 °C as leading outcomes, while traders monitor the final model updates for any shifts in steering flow or insolation.
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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