Trader consensus on Polymarket reflects the latest ECMWF and GFS ensemble forecasts projecting Warsaw's highest temperature on April 9 around 9–11°C, with a tight spread capturing model uncertainty in peak boundary layer heating and cloud cover variability. Recent mild conditions—highs near 14°C over the past week under a persistent high-pressure ridge—have given way to subtle northerly flow in updated runs, tempering diurnal maxima while low probabilities for extremes align with climatological rarity in early April (historical average ~10°C). Key differentiators include frontal timing, which could boost 12°C+ outcomes via clearer skies, versus overcast persistence favoring 8°C or below. IMGW observations and fresh 12z model cycles tomorrow will likely sharpen these market-implied odds.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Warsaw on April 9?
Highest temperature in Warsaw on April 9?
10°C 24%
11°C 24%
9°C 24%
8°C 21%
3°C or below
1%
4°C
1%
5°C
1%
6°C
4%
7°C
19%
8°C
21%
9°C
24%
10°C
24%
11°C
24%
12°C
21%
13°C or higher
20%
10°C 24%
11°C 24%
9°C 24%
8°C 21%
3°C or below
1%
4°C
1%
5°C
1%
6°C
4%
7°C
19%
8°C
21%
9°C
24%
10°C
24%
11°C
24%
12°C
21%
13°C or higher
20%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Warsaw Chopin Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/pl/warsaw/EPWA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all 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 5, 2026, 12:14 AM ET
Resolution Source
https://www.wunderground.com/history/daily/pl/warsaw/EPWAResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Warsaw Chopin Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/pl/warsaw/EPWA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all 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.
Resolution Source
https://www.wunderground.com/history/daily/pl/warsaw/EPWAResolver
0x69c47De9D...Trader consensus on Polymarket reflects the latest ECMWF and GFS ensemble forecasts projecting Warsaw's highest temperature on April 9 around 9–11°C, with a tight spread capturing model uncertainty in peak boundary layer heating and cloud cover variability. Recent mild conditions—highs near 14°C over the past week under a persistent high-pressure ridge—have given way to subtle northerly flow in updated runs, tempering diurnal maxima while low probabilities for extremes align with climatological rarity in early April (historical average ~10°C). Key differentiators include frontal timing, which could boost 12°C+ outcomes via clearer skies, versus overcast persistence favoring 8°C or below. IMGW observations and fresh 12z model cycles tomorrow will likely sharpen these market-implied odds.
Experimental AI-generated summary referencing Polymarket data · Updated
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