Recent ensemble forecasts from the Finnish Meteorological Institute and ECMWF models converge on a daytime maximum of 20–22°C for Helsinki on July 19, reflecting the tight clustering of trader-implied odds around those outcomes. Persistent Baltic Sea maritime air, light southwesterly flow, and potential afternoon cloud cover or showers limit solar insolation and cap warming, while minor model spread on precipitation timing creates the close spread between 19°C and 21°C. These conditions align with typical mid-July patterns where average highs reach near 21°C, though clearer breaks could briefly push peaks higher before the next model update refines the trajectory.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Helsinki on July 19?
19°C 25%
20°C 25%
21°C 19%
22°C 15%
16°C or below
1%
17°C
8%
18°C
12%
19°C
25%
20°C
25%
21°C
19%
22°C
15%
23°C
2%
24°C
2%
25°C
<1%
26°C or higher
<1%
19°C 25%
20°C 25%
21°C 19%
22°C 15%
16°C or below
1%
17°C
8%
18°C
12%
19°C
25%
20°C
25%
21°C
19%
22°C
15%
23°C
2%
24°C
2%
25°C
<1%
26°C or higher
<1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
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 until the first data point for the following date has been published on the resolution source.
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.
Market Opened: Jul 17, 2026, 1:03 AM ET
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
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 until the first data point for the following date has been published on the resolution source.
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.
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Recent ensemble forecasts from the Finnish Meteorological Institute and ECMWF models converge on a daytime maximum of 20–22°C for Helsinki on July 19, reflecting the tight clustering of trader-implied odds around those outcomes. Persistent Baltic Sea maritime air, light southwesterly flow, and potential afternoon cloud cover or showers limit solar insolation and cap warming, while minor model spread on precipitation timing creates the close spread between 19°C and 21°C. These conditions align with typical mid-July patterns where average highs reach near 21°C, though clearer breaks could briefly push peaks higher before the next model update refines the trajectory.
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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