Forecast models from the Finnish Meteorological Institute and ECMWF ensembles show daytime maxima in Helsinki on July 10 clustered near 19–22°C under broken cloud cover, light northeasterly flow, and negligible precipitation, producing the tight market spread between 22°C (33.5%) and 23°C (26%). Modest warming potential stems from increasing solar insolation and reduced Atlantic influence, while sea-breeze moderation from the Baltic and any residual low-level moisture keep extremes capped below 24°C. Traders weigh short-range model consensus against typical July climatology (mean high ~21°C) and the narrow uncertainty range typical two days ahead, with resolution hinging on the precise peak reading at official stations.
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 10?
23°C 44%
22°C 43%
24°C 10%
21°C 4.5%
$16,933 Vol.
$16,933 Vol.
16°C or below
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
1%
21°C
5%
22°C
43%
23°C
44%
24°C
10%
25°C
1%
26°C or higher
<1%
23°C 44%
22°C 43%
24°C 10%
21°C 4.5%
$16,933 Vol.
$16,933 Vol.
16°C or below
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
1%
21°C
5%
22°C
43%
23°C
44%
24°C
10%
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 8, 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...Forecast models from the Finnish Meteorological Institute and ECMWF ensembles show daytime maxima in Helsinki on July 10 clustered near 19–22°C under broken cloud cover, light northeasterly flow, and negligible precipitation, producing the tight market spread between 22°C (33.5%) and 23°C (26%). Modest warming potential stems from increasing solar insolation and reduced Atlantic influence, while sea-breeze moderation from the Baltic and any residual low-level moisture keep extremes capped below 24°C. Traders weigh short-range model consensus against typical July climatology (mean high ~21°C) and the narrow uncertainty range typical two days ahead, with resolution hinging on the precise peak reading at official stations.
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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