**Trader consensus strongly favors a 5°C low for Helsinki on September 5, 2026, at 99.8% implied probability, driven by consistent short-range model guidance from the Finnish Meteorological Institute (FMI) and global ensembles showing clear skies and light northwest winds promoting efficient nocturnal radiative cooling.** Overnight temperatures are projected to bottom out near dawn following daytime highs around 17–18°C, aligning with a cooler-than-average pattern for early September where climatological lows average near 11°C. High market confidence stems from tight agreement across runs, with minimal spread in forecast minima. A realistic shift away from exactly 5°C could occur if unexpected low-level cloud or stronger winds reduce cooling rates, or if station-specific microclimate effects at the official measurement site produce a 1–2°C deviation. Updated FMI guidance and real-time observations will determine final resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Helsinki on September 5?
Lowest temperature in Helsinki on September 5?
5°C 100.0%
4°C or below <1%
6°C <1%
7°C <1%
$4,603 Vol.
$4,603 Vol.
Sep 5, 2026
4°C or below
No
5°C
Yes
6°C
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C or higher
No
5°C 100.0%
4°C or below <1%
6°C <1%
7°C <1%
$4,603 Vol.
$4,603 Vol.
Sep 5, 2026
4°C or below
$252 Vol.
No
5°C
$1,581 Vol.
Yes
6°C
$1,496 Vol.
No
7°C
$316 Vol.
No
8°C
$220 Vol.
No
9°C
$315 Vol.
No
10°C
$127 Vol.
No
11°C
$62 Vol.
No
12°C
$77 Vol.
No
13°C
$62 Vol.
No
14°C or higher
$92 Vol.
No
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 5 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
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.**Trader consensus strongly favors a 5°C low for Helsinki on September 5, 2026, at 99.8% implied probability, driven by consistent short-range model guidance from the Finnish Meteorological Institute (FMI) and global ensembles showing clear skies and light northwest winds promoting efficient nocturnal radiative cooling.** Overnight temperatures are projected to bottom out near dawn following daytime highs around 17–18°C, aligning with a cooler-than-average pattern for early September where climatological lows average near 11°C. High market confidence stems from tight agreement across runs, with minimal spread in forecast minima. A realistic shift away from exactly 5°C could occur if unexpected low-level cloud or stronger winds reduce cooling rates, or if station-specific microclimate effects at the official measurement site produce a 1–2°C deviation. Updated FMI guidance and real-time observations will determine final resolution.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 5 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
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.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
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.
Market Opened: Sep 3, 2026, 12:31 AM ET
Volume
$4,603End Date
Sep 5, 2026Market Opened
Sep 3, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 5 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
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.**Trader consensus strongly favors a 5°C low for Helsinki on September 5, 2026, at 99.8% implied probability, driven by consistent short-range model guidance from the Finnish Meteorological Institute (FMI) and global ensembles showing clear skies and light northwest winds promoting efficient nocturnal radiative cooling.** Overnight temperatures are projected to bottom out near dawn following daytime highs around 17–18°C, aligning with a cooler-than-average pattern for early September where climatological lows average near 11°C. High market confidence stems from tight agreement across runs, with minimal spread in forecast minima. A realistic shift away from exactly 5°C could occur if unexpected low-level cloud or stronger winds reduce cooling rates, or if station-specific microclimate effects at the official measurement site produce a 1–2°C deviation. Updated FMI guidance and real-time observations will determine final resolution.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 5 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
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.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
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
$4,603End Date
Sep 5, 2026Market Opened
Sep 3, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
**Trader consensus strongly favors a 5°C low for Helsinki on September 5, 2026, at 99.8% implied probability, driven by consistent short-range model guidance from the Finnish Meteorological Institute (FMI) and global ensembles showing clear skies and light northwest winds promoting efficient nocturnal radiative cooling.** Overnight temperatures are projected to bottom out near dawn following daytime highs around 17–18°C, aligning with a cooler-than-average pattern for early September where climatological lows average near 11°C. High market confidence stems from tight agreement across runs, with minimal spread in forecast minima. A realistic shift away from exactly 5°C could occur if unexpected low-level cloud or stronger winds reduce cooling rates, or if station-specific microclimate effects at the official measurement site produce a 1–2°C deviation. Updated FMI guidance and real-time observations will determine final resolution.
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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