Recent ensemble forecasts from major models, including GFS and ECMWF runs, indicate a daily maximum near 28–29°C for Istanbul on July 1, 2026, under persistent high pressure, light northerly flow, and mostly clear skies that limit excessive heating. These conditions align with typical early-summer climatology for the region, where average July highs hover around 27–28°C, though brief warm advection could push readings slightly higher. Trader consensus reflected in the market probabilities emphasizes this narrow range, with limited upside risk from current guidance and no major model divergence or heatwave signals in the latest updates. Resolution will hinge on the official Turkish State Meteorological Service station reading.
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 1?
28°C 100.0%
23°C or below <1%
24°C <1%
25°C <1%
$37,885 Vol.
$37,885 Vol.
23°C or below
No
24°C
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 or higher
No
28°C 100.0%
23°C or below <1%
24°C <1%
25°C <1%
$37,885 Vol.
$37,885 Vol.
23°C or below
No
24°C
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 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: Jun 29, 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 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 ensemble forecasts from major models, including GFS and ECMWF runs, indicate a daily maximum near 28–29°C for Istanbul on July 1, 2026, under persistent high pressure, light northerly flow, and mostly clear skies that limit excessive heating. These conditions align with typical early-summer climatology for the region, where average July highs hover around 27–28°C, though brief warm advection could push readings slightly higher. Trader consensus reflected in the market probabilities emphasizes this narrow range, with limited upside risk from current guidance and no major model divergence or heatwave signals in the latest updates. Resolution will hinge on the official Turkish State Meteorological Service station reading.
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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