Recent forecast runs from GFS and regional models show Moscow temperatures peaking near 17–18 °C on 18 September under moderate westerly flow, variable cloud cover, and scattered morning showers that limit diurnal heating. Warm advection from the southwest has kept readings above seasonal norms, yet increasing low-level moisture and partial clearing this afternoon create a narrow range where the daily maximum hinges on exact timing of cloud breaks and wind speeds. Official observations through midday hover around 16–17 °C, leaving the final high sensitive to late-day insolation and any brief clearing. Trader consensus between the 17 °C and 18 °C outcomes reflects this tight model spread and the inherent uncertainty in short-term boundary-layer evolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Moscow on September 18?
17°C 41%
18°C 26%
16°C 24%
19°C 5%
$18,581 Vol.
$18,581 Vol.
10°C or below
<1%
11°C
<1%
12°C
<1%
13°C
<1%
14°C
1%
15°C
3%
16°C
27%
17°C
41%
18°C
26%
19°C
5%
20°C or higher
2%
17°C 41%
18°C 26%
16°C 24%
19°C 5%
$18,581 Vol.
$18,581 Vol.
10°C or below
<1%
11°C
<1%
12°C
<1%
13°C
<1%
14°C
1%
15°C
3%
16°C
27%
17°C
41%
18°C
26%
19°C
5%
20°C or higher
2%
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=UUWW
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 16, 2026, 12:58 AM ET
Resolver
0x69c47De9D...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=UUWW
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.
Resolver
0x69c47De9D...Recent forecast runs from GFS and regional models show Moscow temperatures peaking near 17–18 °C on 18 September under moderate westerly flow, variable cloud cover, and scattered morning showers that limit diurnal heating. Warm advection from the southwest has kept readings above seasonal norms, yet increasing low-level moisture and partial clearing this afternoon create a narrow range where the daily maximum hinges on exact timing of cloud breaks and wind speeds. Official observations through midday hover around 16–17 °C, leaving the final high sensitive to late-day insolation and any brief clearing. Trader consensus between the 17 °C and 18 °C outcomes reflects this tight model spread and the inherent uncertainty in short-term boundary-layer evolution.
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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