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icon for Highest temperature in Warsaw on September 18?

Highest temperature in Warsaw on September 18?

icon for Highest temperature in Warsaw on September 18?

Highest temperature in Warsaw on September 18?

22°C 51%

21°C 36%

23°C 12%

20°C 3%

Polymarket
NEW

22°C 51%

21°C 36%

23°C 12%

20°C 3%

Polymarket
NEW

15°C or below

$1,243 Vol.

<1%

16°C

$133 Vol.

<1%

17°C

$538 Vol.

<1%

18°C

$363 Vol.

<1%

19°C

$166 Vol.

<1%

20°C

$352 Vol.

3%

21°C

$1,698 Vol.

36%

22°C

$2,685 Vol.

51%

23°C

$1,471 Vol.

12%

24°C

$285 Vol.

<1%

25°C or higher

$205 Vol.

1%

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Warsaw Chopin Airport Station in degrees Celsius on 18 Sep '26. 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=epwa 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.Current forecast models indicate a peak daytime temperature in Warsaw of 21–22°C on September 18 under partly cloudy skies and moderate southwesterly winds, supporting the market’s strong weighting toward these outcomes. Stable high pressure and limited moisture advection have suppressed stronger warming or cooling, keeping values near late-September climatological norms with little model spread. Recent runs show consistent afternoon maxima near 21°C, with minor upward revisions in some guidance pushing isolated 23°C scenarios. Traders appear to discount higher or lower extremes given the absence of dynamic weather features, though final resolution depends on official station observations amid typical diurnal and microscale variability.

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Warsaw Chopin Airport Station in degrees Celsius on 18 Sep '26.

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=epwa

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.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Warsaw Chopin Airport Station in degrees Celsius on 18 Sep '26. 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=epwa 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.
Volume
$9,138
End Date
Sep 18, 2026
Market Opened
Sep 16, 2026, 12:57 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Warsaw Chopin Airport Station in degrees Celsius on 18 Sep '26. 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=epwa 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.Current forecast models indicate a peak daytime temperature in Warsaw of 21–22°C on September 18 under partly cloudy skies and moderate southwesterly winds, supporting the market’s strong weighting toward these outcomes. Stable high pressure and limited moisture advection have suppressed stronger warming or cooling, keeping values near late-September climatological norms with little model spread. Recent runs show consistent afternoon maxima near 21°C, with minor upward revisions in some guidance pushing isolated 23°C scenarios. Traders appear to discount higher or lower extremes given the absence of dynamic weather features, though final resolution depends on official station observations amid typical diurnal and microscale variability.

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Warsaw Chopin Airport Station in degrees Celsius on 18 Sep '26.

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=epwa

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.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Warsaw Chopin Airport Station in degrees Celsius on 18 Sep '26. 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=epwa 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.
Volume
$9,138
End Date
Sep 18, 2026
Market Opened
Sep 16, 2026, 12:57 AM ET

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Frequently Asked Questions

"Highest temperature in Warsaw on September 18?" 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 "22°C" at 51%, followed by "21°C" at 36%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 51¢ implies that the market collectively assigns a 51% 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.

"Highest temperature in Warsaw on September 18?" is a newly created market on Polymarket, launched on Sep 16, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Highest temperature in Warsaw on September 18?," 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 Warsaw on September 18?" is "22°C" at 51%, meaning the market assigns a 51% chance to that outcome. The next closest outcome is "21°C" at 36%. 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 Warsaw on September 18?" 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.