Recent forecast updates from Météo-France and European models show a post-heatwave cooldown for Paris on June 20, with daytime maxima expected near 30°C amid increased cloud cover and a 60% rain chance, following peaks of 36–37°C on prior days. Trader sentiment clusters around 33–34°C because ensemble spreads in the ECMWF and GFS runs still allow for modest variations in timing of the trough, boundary-layer mixing, or residual warm advection that could push the daily high a few degrees higher. Historical June climatology places average maxima near 23–24°C, yet the current anomalous ridge and soil moisture deficits support elevated baselines, with resolution hinging on official observations from Paris stations measuring the precise peak before any evening drop.
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 June 20?
35°C 100.0%
29°C or below <1%
30°C <1%
31°C <1%
$157,383 Vol.
$157,383 Vol.
29°C or below
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
No
35°C
Yes
36°C
No
37°C
No
38°C
No
39°C or higher
No
35°C 100.0%
29°C or below <1%
30°C <1%
31°C <1%
$157,383 Vol.
$157,383 Vol.
29°C or below
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
No
35°C
Yes
36°C
No
37°C
No
38°C
No
39°C 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 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: Jun 18, 2026, 12:03 AM ET
Resolver
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 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.
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent forecast updates from Météo-France and European models show a post-heatwave cooldown for Paris on June 20, with daytime maxima expected near 30°C amid increased cloud cover and a 60% rain chance, following peaks of 36–37°C on prior days. Trader sentiment clusters around 33–34°C because ensemble spreads in the ECMWF and GFS runs still allow for modest variations in timing of the trough, boundary-layer mixing, or residual warm advection that could push the daily high a few degrees higher. Historical June climatology places average maxima near 23–24°C, yet the current anomalous ridge and soil moisture deficits support elevated baselines, with resolution hinging on official observations from Paris stations measuring the precise peak before any evening drop.
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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