Recent forecasts from multiple meteorological models indicate Istanbul's September 24 high will likely reach 20–22°C following a cooler, rainy period on the 23rd driven by northerly flow and frontal passage. This setup favors gradual post-frontal warming under increasing sunshine and lighter winds, though exact maxima hinge on cloud cover timing and local sea-breeze influences near the Bosphorus. Trader emphasis on 21°C and 20°C reflects tight model consensus around these values, consistent with September climatology tempered by the current synoptic pattern, while lower-probability warmer outcomes would require faster clearing or southerly advection not currently indicated. Updated model runs and official observations will refine resolution thresholds ahead of market close.
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 September 24?
20°C 52%
21°C 43%
19°C 37%
18°C 36%
16°C or below
2%
17°C
7%
18°C
36%
19°C
37%
20°C
33%
21°C
43%
22°C
7%
23°C
20%
24°C
2%
25°C
2%
26°C or higher
2%
20°C 52%
21°C 43%
19°C 37%
18°C 36%
16°C or below
2%
17°C
7%
18°C
36%
19°C
37%
20°C
33%
21°C
43%
22°C
7%
23°C
20%
24°C
2%
25°C
2%
26°C or higher
2%
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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 22, 2026, 12:58 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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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...Recent forecasts from multiple meteorological models indicate Istanbul's September 24 high will likely reach 20–22°C following a cooler, rainy period on the 23rd driven by northerly flow and frontal passage. This setup favors gradual post-frontal warming under increasing sunshine and lighter winds, though exact maxima hinge on cloud cover timing and local sea-breeze influences near the Bosphorus. Trader emphasis on 21°C and 20°C reflects tight model consensus around these values, consistent with September climatology tempered by the current synoptic pattern, while lower-probability warmer outcomes would require faster clearing or southerly advection not currently indicated. Updated model runs and official observations will refine resolution thresholds ahead of market close.
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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