Forecast models from sources including ECMWF and GFS show Jeddah experiencing typical late-September conditions on the 26th, with daytime highs near 36°C under clear skies and light northwest winds, while nighttime radiative cooling supports lows around 28–29°C amid high humidity. This narrow range between seasonal norms and the market’s extreme bins—26°C or below versus 36°C or higher—explains the near-even trader split, as small shifts in wind patterns or cloud cover could tip overnight minima. Historical September averages place overnight lows near 28°C, reinforcing uncertainty until updated short-range runs clarify boundary-layer dynamics.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Jeddah on September 26?
26°C or below 82%
36°C or higher 79%
30°C 41%
27°C 39%
26°C or below
82%
27°C
39%
28°C
20%
29°C
21%
30°C
41%
31°C
20%
32°C
39%
33°C
39%
34°C
39%
35°C
39%
36°C or higher
79%
26°C or below 82%
36°C or higher 79%
30°C 41%
27°C 39%
26°C or below
82%
27°C
39%
28°C
20%
29°C
21%
30°C
41%
31°C
20%
32°C
39%
33°C
39%
34°C
39%
35°C
39%
36°C or higher
79%
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=oejn
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 24, 2026, 12:31 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=oejnResolver
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=oejn
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=oejnResolver
0x69c47de9d...Forecast models from sources including ECMWF and GFS show Jeddah experiencing typical late-September conditions on the 26th, with daytime highs near 36°C under clear skies and light northwest winds, while nighttime radiative cooling supports lows around 28–29°C amid high humidity. This narrow range between seasonal norms and the market’s extreme bins—26°C or below versus 36°C or higher—explains the near-even trader split, as small shifts in wind patterns or cloud cover could tip overnight minima. Historical September averages place overnight lows near 28°C, reinforcing uncertainty until updated short-range runs clarify boundary-layer dynamics.
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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