Recent forecasts from agencies like AccuWeather project Istanbul's July 18 high near 29–30°C under typical Mediterranean summer conditions, with clear skies and light northerly winds supporting modest daytime heating. Sea breezes along the Bosphorus and Golden Horn frequently cap peaks below regional models, while urban heat island effects and variable cloud cover introduce uncertainty around the 28–30°C band. Historical July averages hover at 28–29°C, and the absence of strong advection or frontal systems keeps outcomes closely clustered, as traders weigh short-range model runs against local microclimate variability two days out.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Istanbul on July 18?
28°C 100.0%
24°C or below <1%
25°C <1%
26°C <1%
$25,899 Vol.
$25,899 Vol.
24°C or below
No
25°C
No
26°C
No
27°C
No
28°C
Yes
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C or higher
No
28°C 100.0%
24°C or below <1%
25°C <1%
26°C <1%
$25,899 Vol.
$25,899 Vol.
24°C or below
No
25°C
No
26°C
No
27°C
No
28°C
Yes
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C or higher
No
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=LTFM
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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: Jul 16, 2026, 1:04 AM ET
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=LTFM
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 forecasts from agencies like AccuWeather project Istanbul's July 18 high near 29–30°C under typical Mediterranean summer conditions, with clear skies and light northerly winds supporting modest daytime heating. Sea breezes along the Bosphorus and Golden Horn frequently cap peaks below regional models, while urban heat island effects and variable cloud cover introduce uncertainty around the 28–30°C band. Historical July averages hover at 28–29°C, and the absence of strong advection or frontal systems keeps outcomes closely clustered, as traders weigh short-range model runs against local microclimate variability two days out.
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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