Latest ensemble forecasts from ECMWF and GFS models position 26–28°C as the most probable range for Istanbul’s daily maximum on August 21, consistent with the market’s leading implied probabilities of 48% for 27°C and 32.5% for 26°C. In late summer, the region’s Mediterranean regime typically delivers highs near 29°C under high pressure, yet current runs show modest cooling from increased cloud cover and northerly flow, keeping extremes below recent peaks. Trader consensus reflects this model agreement and low uncertainty two days out, though small shifts in steering patterns or local urban heat effects could nudge outcomes toward 28–29°C. Updated short-range guidance and observational data ahead of resolution will clarify any late adjustments.
Riepilogo sperimentale generato dall'AI con riferimento ai dati di Polymarket. Questo non è un consiglio di trading e non ha alcun ruolo nella risoluzione di questo mercato. · AggiornatoLa temperatura più alta di Istanbul il 21 agosto?
27°C 48%
26°C 33%
28°C 21%
29°C 15%
22°C or below
3%
23°C
3%
24°C
8%
25°C
14%
26°C
33%
27°C
48%
28°C
21%
29°C
15%
30°C
<1%
31°C
<1%
32°C or higher
<1%
27°C 48%
26°C 33%
28°C 21%
29°C 15%
22°C or below
3%
23°C
3%
24°C
8%
25°C
14%
26°C
33%
27°C
48%
28°C
21%
29°C
15%
30°C
<1%
31°C
<1%
32°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.
Mercato aperto: Aug 19, 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
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 ensemble forecasts from ECMWF and GFS models position 26–28°C as the most probable range for Istanbul’s daily maximum on August 21, consistent with the market’s leading implied probabilities of 48% for 27°C and 32.5% for 26°C. In late summer, the region’s Mediterranean regime typically delivers highs near 29°C under high pressure, yet current runs show modest cooling from increased cloud cover and northerly flow, keeping extremes below recent peaks. Trader consensus reflects this model agreement and low uncertainty two days out, though small shifts in steering patterns or local urban heat effects could nudge outcomes toward 28–29°C. Updated short-range guidance and observational data ahead of resolution will clarify any late adjustments.
Riepilogo sperimentale generato dall'AI con riferimento ai dati di Polymarket. Questo non è un consiglio di trading e non ha alcun ruolo nella risoluzione di questo mercato. · Aggiornato


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