Latest ensemble forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) and Global Forecast System (GFS) project Istanbul's highest temperature on March 31 clustering tightly around 15-17°C, mirroring the Polymarket's evenly split trader consensus with implied probabilities of 22-24.5% for these outcomes. This reflects a mild high-pressure ridge over the eastern Mediterranean promoting daytime warming, offset by variable northerly winds and partial cloud cover that could suppress peaks by 1-2°C. Recent 48-hour model runs show minimal shifts, maintaining a 2°C spread amid typical springtime uncertainty from evolving synoptic patterns. Climatological March highs average 12-14°C, but current anomalies suggest above-normal conditions. Traders await daily 00Z updates for potential refinement ahead of resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Istanbul on March 31?
Highest temperature in Istanbul on March 31?
16°C 25%
17°C 24%
15°C 22%
8°C or below 17%
8°C or below
12%
9°C
6%
10°C
17%
11°C
10%
12°C
15%
13°C
15%
14°C
14%
15°C
22%
16°C
25%
17°C
24%
18°C or higher
13%
16°C 25%
17°C 24%
15°C 22%
8°C or below 17%
8°C or below
12%
9°C
6%
10°C
17%
11°C
10%
12°C
15%
13°C
15%
14°C
14%
15°C
22%
16°C
25%
17°C
24%
18°C or higher
13%
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: Mar 27, 2026, 6:03 AM ET
Resolver
0x69c47De9D...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...Latest ensemble forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) and Global Forecast System (GFS) project Istanbul's highest temperature on March 31 clustering tightly around 15-17°C, mirroring the Polymarket's evenly split trader consensus with implied probabilities of 22-24.5% for these outcomes. This reflects a mild high-pressure ridge over the eastern Mediterranean promoting daytime warming, offset by variable northerly winds and partial cloud cover that could suppress peaks by 1-2°C. Recent 48-hour model runs show minimal shifts, maintaining a 2°C spread amid typical springtime uncertainty from evolving synoptic patterns. Climatological March highs average 12-14°C, but current anomalies suggest above-normal conditions. Traders await daily 00Z updates for potential refinement ahead of resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions