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Highest temperature in Istanbul on April 20?

icon for Highest temperature in Istanbul on April 20?

Highest temperature in Istanbul on April 20?

19°C or higher 100.0%

9°C or below <1%

10°C <1%

11°C <1%

Polymarket

$61,910 Vol.

19°C or higher 100.0%

9°C or below <1%

10°C <1%

11°C <1%

Polymarket

$61,910 Vol.

9°C or below

$1,352 Vol.

No

10°C

$2,651 Vol.

No

11°C

$2,196 Vol.

No

12°C

$2,073 Vol.

No

13°C

$1,730 Vol.

No

14°C

$4,386 Vol.

No

15°C

$12,194 Vol.

No

16°C

$7,889 Vol.

No

17°C

$5,448 Vol.

No

18°C

$7,562 Vol.

No

19°C or higher

$14,430 Vol.

Yes

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 20 Apr '26. 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.Trader consensus on Polymarket assigns 100% implied probability to a high temperature of 19°C or higher in Istanbul today, driven by strong alignment across global forecast models like ECMWF and GFS, alongside AccuWeather and Turkish State Meteorological Service (MGM) projections of afternoon peaks at 19-20°C. Sunny skies, light southerly winds around 11 km/h, and a high-pressure ridge are fueling daytime heating, with midday observations already reaching 16°C and RealFeel values up to 23°C. This exceeds April climatological averages of 16-17°C at Istanbul Atatürk Airport, the market's NOAA resolution station. Realistic challenges include unexpected marine-layer clouds or a sudden sea breeze, though model agreement and minimal 1% precipitation risk make such shifts unlikely; monitor hourly airport readings through evening for confirmation.

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 20 Apr '26.

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.
Volume
$61,910
End Date
Apr 20, 2026
Market Opened
Apr 18, 2026, 12:09 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 20 Apr '26. 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.

Outcome proposed: No

No dispute

Final outcome: No

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 20 Apr '26. 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.Trader consensus on Polymarket assigns 100% implied probability to a high temperature of 19°C or higher in Istanbul today, driven by strong alignment across global forecast models like ECMWF and GFS, alongside AccuWeather and Turkish State Meteorological Service (MGM) projections of afternoon peaks at 19-20°C. Sunny skies, light southerly winds around 11 km/h, and a high-pressure ridge are fueling daytime heating, with midday observations already reaching 16°C and RealFeel values up to 23°C. This exceeds April climatological averages of 16-17°C at Istanbul Atatürk Airport, the market's NOAA resolution station. Realistic challenges include unexpected marine-layer clouds or a sudden sea breeze, though model agreement and minimal 1% precipitation risk make such shifts unlikely; monitor hourly airport readings through evening for confirmation.

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 20 Apr '26.

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.
Volume
$61,910
End Date
Apr 20, 2026
Market Opened
Apr 18, 2026, 12:09 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 20 Apr '26. 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.

Outcome proposed: No

No dispute

Final outcome: No

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Frequently Asked Questions

"Highest temperature in Istanbul on April 20?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "19°C or higher" at 100%, followed by "9°C or below" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 100¢ implies that the market collectively assigns a 100% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Highest temperature in Istanbul on April 20?" has generated $61.9K in total trading volume since the market launched on Apr 18, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Highest temperature in Istanbul on April 20?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Highest temperature in Istanbul on April 20?" is "19°C or higher" at 100%, meaning the market assigns a 100% chance to that outcome. The next closest outcome is "9°C or below" at 0%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Highest temperature in Istanbul on April 20?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.