Recent forecasts from multiple models indicate a cool, rainy day in Istanbul on September 23 driven by northerly winds and widespread precipitation, keeping maximum temperatures in the 16–17°C range. Persistent cloud cover and showers associated with a passing frontal system limit daytime warming, consistent with the market's strong consensus on 17°C (54.5%) and 16°C (33.5%) as leading outcomes. Ensemble guidance shows limited spread, though small variations in timing or intensity of rain could shift the daily high by 1°C. Traders are weighting official meteorological consensus heavily, as resolution depends on verified station observations rather than model projections.
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 23?
17°C 47%
16°C 35%
18°C 9%
15°C 8.1%
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
8%
16°C
35%
17°C
47%
18°C
9%
19°C
3%
20°C
2%
21°C
<1%
22°C or higher
<1%
17°C 47%
16°C 35%
18°C 9%
15°C 8.1%
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
8%
16°C
35%
17°C
47%
18°C
9%
19°C
3%
20°C
2%
21°C
<1%
22°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
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 21, 2026, 12:57 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 models indicate a cool, rainy day in Istanbul on September 23 driven by northerly winds and widespread precipitation, keeping maximum temperatures in the 16–17°C range. Persistent cloud cover and showers associated with a passing frontal system limit daytime warming, consistent with the market's strong consensus on 17°C (54.5%) and 16°C (33.5%) as leading outcomes. Ensemble guidance shows limited spread, though small variations in timing or intensity of rain could shift the daily high by 1°C. Traders are weighting official meteorological consensus heavily, as resolution depends on verified station observations rather than model projections.
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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