Forecast models from agencies including the German Weather Service and ECMWF indicate a mostly clear night over Munich on September 18 with light southwesterly winds and dew points near 8–10 °C, favoring radiational cooling after sunset. This setup supports a daily minimum in the 10–12 °C range under typical autumn conditions, yet modest model spread in boundary-layer mixing and cloud cover keeps the 5–7 °C outcomes closely bunched in market pricing. Historical September 18 lows average 9.8 °C, with occasional sub-6 °C readings when high pressure strengthens overnight, while urban heat-island effects and any increase in low-level moisture could limit further drops. Traders are therefore weighting the balance between clear-sky cooling potential and the risk of slightly warmer advection or residual cloud. Updated model runs and surface observations through the evening will provide the next key signals ahead of 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 Munich on September 18?
9°C 38%
7°C 30%
5°C or below 27.1%
8°C 26%
5°C or below
27%
6°C
30%
7°C
30%
8°C
26%
9°C
38%
10°C
18%
11°C
11%
12°C
7%
13°C
4%
14°C
4%
15°C or higher
4%
9°C 38%
7°C 30%
5°C or below 27.1%
8°C 26%
5°C or below
27%
6°C
30%
7°C
30%
8°C
26%
9°C
38%
10°C
18%
11°C
11%
12°C
7%
13°C
4%
14°C
4%
15°C or higher
4%
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=eddm
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, 12:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=eddmResolver
0x69c47De9D...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=eddm
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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=eddmResolver
0x69c47De9D...Forecast models from agencies including the German Weather Service and ECMWF indicate a mostly clear night over Munich on September 18 with light southwesterly winds and dew points near 8–10 °C, favoring radiational cooling after sunset. This setup supports a daily minimum in the 10–12 °C range under typical autumn conditions, yet modest model spread in boundary-layer mixing and cloud cover keeps the 5–7 °C outcomes closely bunched in market pricing. Historical September 18 lows average 9.8 °C, with occasional sub-6 °C readings when high pressure strengthens overnight, while urban heat-island effects and any increase in low-level moisture could limit further drops. Traders are therefore weighting the balance between clear-sky cooling potential and the risk of slightly warmer advection or residual cloud. Updated model runs and surface observations through the evening will provide the next key signals ahead of 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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