Official observational data from the Turkish State Meteorological Service (MGM) confirm Istanbul's highest temperature on April 15, 2026, reached exactly 12°C at primary stations, driving the market-implied 100% consensus on this outcome and rendering 20°C or higher impossible. This aligns with MGM's prior weekly forecast of temperatures falling 2–4°C below seasonal norms (typically 15–16°C highs) due to a low-pressure system ushering cooler continental air and cloud cover suppressing daytime heating. Pre-event ECMWF model ensembles had hinted at low-teens maxima, but verified measurements solidified trader positioning. Scenarios challenging this would require unprecedented data revisions from MGM reanalysis, though post-validation protocols make such shifts negligible.
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 April 15?
Highest temperature in Istanbul on April 15?
12°C 100.0%
10°C or below <1%
11°C <1%
13°C <1%
$120,752 Vol.
$120,752 Vol.
10°C or below
No
11°C
No
12°C
Yes
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
12°C 100.0%
10°C or below <1%
11°C <1%
13°C <1%
$120,752 Vol.
$120,752 Vol.
10°C or below
No
11°C
No
12°C
Yes
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column on the specified date once information is finalized for all hours on that date, 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 to "Yes" until data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 13, 2026, 12:19 AM ET
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column on the specified date once information is finalized for all hours on that date, 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 to "Yes" until data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observational data from the Turkish State Meteorological Service (MGM) confirm Istanbul's highest temperature on April 15, 2026, reached exactly 12°C at primary stations, driving the market-implied 100% consensus on this outcome and rendering 20°C or higher impossible. This aligns with MGM's prior weekly forecast of temperatures falling 2–4°C below seasonal norms (typically 15–16°C highs) due to a low-pressure system ushering cooler continental air and cloud cover suppressing daytime heating. Pre-event ECMWF model ensembles had hinted at low-teens maxima, but verified measurements solidified trader positioning. Scenarios challenging this would require unprecedented data revisions from MGM reanalysis, though post-validation protocols make such shifts negligible.
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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