Incoming rain and thunderstorms, combined with variable cloud cover and northeasterly winds, are keeping forecast minimum temperatures tightly clustered around 16–18°C for Istanbul on September 22. Maritime moderation from the Sea of Marmara and Black Sea limits overnight radiative cooling, while persistent cloudiness and precipitation reduce the potential for sharper drops. Model consensus shows light to moderate rain through the night, with wind speeds of 10–25 km/h that can either mix warmer air aloft or enhance evaporative cooling depending on timing and intensity. Trader sentiment reflects this narrow range of outcomes, as small shifts in cloud persistence or wind direction could tip the official low between 16°C and 18°C. Final station measurements from the Turkish State Meteorological Service will resolve the market once the full diurnal cycle completes.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Istanbul on September 22?
10°C or below 100%
14°C 97%
19°C 97%
20°C or higher 97%
10°C or below
100%
11°C
18%
12°C
18%
13°C
18%
14°C
97%
15°C
51%
16°C
50%
17°C
51%
18°C
51%
19°C
97%
20°C or higher
97%
10°C or below 100%
14°C 97%
19°C 97%
20°C or higher 97%
10°C or below
100%
11°C
18%
12°C
18%
13°C
18%
14°C
97%
15°C
51%
16°C
50%
17°C
51%
18°C
51%
19°C
97%
20°C or higher
97%
The resolution source for this market will be information from NOAA, specifically the lowest 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 20, 2026, 12:31 AM ET
Resolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the lowest 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...Incoming rain and thunderstorms, combined with variable cloud cover and northeasterly winds, are keeping forecast minimum temperatures tightly clustered around 16–18°C for Istanbul on September 22. Maritime moderation from the Sea of Marmara and Black Sea limits overnight radiative cooling, while persistent cloudiness and precipitation reduce the potential for sharper drops. Model consensus shows light to moderate rain through the night, with wind speeds of 10–25 km/h that can either mix warmer air aloft or enhance evaporative cooling depending on timing and intensity. Trader sentiment reflects this narrow range of outcomes, as small shifts in cloud persistence or wind direction could tip the official low between 16°C and 18°C. Final station measurements from the Turkish State Meteorological Service will resolve the market once the full diurnal cycle completes.
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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