Latest forecasts from sources including BBC Weather and timeanddate point to a high near 28–29°C in Istanbul on June 15 under sunny skies and light southerly or westerly winds, aligning with the market’s tight clustering around those outcomes. June climatology shows average daily highs of 25–27°C, so current conditions reflect modest warming from clear skies and limited marine influence. Small spreads between 28°C, 29°C, and 30°C arise from model differences in peak timing, urban heat-island effects, and possible afternoon sea-breeze moderation along the Bosphorus. Traders weigh these variables against official guidance, with the slight edge to 29°C reflecting consensus on modest exceedance of seasonal norms. Updated runs expected overnight could shift probabilities ahead of resolution.
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 June 15?
29°C 34%
30°C 25%
28°C 24%
27°C 8%
26°C or below
3%
27°C
8%
28°C
24%
29°C
34%
30°C
25%
31°C
8%
32°C
<1%
33°C
<1%
34°C
<1%
35°C
<1%
36°C or higher
<1%
29°C 34%
30°C 25%
28°C 24%
27°C 8%
26°C or below
3%
27°C
8%
28°C
24%
29°C
34%
30°C
25%
31°C
8%
32°C
<1%
33°C
<1%
34°C
<1%
35°C
<1%
36°C or higher
<1%
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 13, 2026, 12:12 AM ET
Resolver
0x69c47De9D...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...Latest forecasts from sources including BBC Weather and timeanddate point to a high near 28–29°C in Istanbul on June 15 under sunny skies and light southerly or westerly winds, aligning with the market’s tight clustering around those outcomes. June climatology shows average daily highs of 25–27°C, so current conditions reflect modest warming from clear skies and limited marine influence. Small spreads between 28°C, 29°C, and 30°C arise from model differences in peak timing, urban heat-island effects, and possible afternoon sea-breeze moderation along the Bosphorus. Traders weigh these variables against official guidance, with the slight edge to 29°C reflecting consensus on modest exceedance of seasonal norms. Updated runs expected overnight could shift probabilities ahead of resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

Beware of external links.
Beware of external links.
Frequently Asked Questions