Recent forecasts from global models and local observations indicate daytime highs in Jeddah on August 28 are most likely to reach or exceed 38°C under persistent high-pressure conditions, clear skies, and typical late-summer solar heating, driving the 62% market-implied probability for that outcome. Historical August averages near 38°C, combined with recent days recording 37–39°C maxima and minimal cloud cover or moisture, reinforce trader expectations of sustained heat. Forecast uncertainty remains due to potential minor shifts in steering winds or humidity, though official updates from agencies like the Saudi National Center for Meteorology are expected to refine the consensus before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Jeddah on August 28?
38°C or higher 62%
37°C 20%
32°C 9%
33°C 9%
28°C or below
<1%
29°C
7%
30°C
7%
31°C
7%
32°C
9%
33°C
9%
34°C
9%
35°C
1%
36°C
7%
37°C
20%
38°C or higher
62%
38°C or higher 62%
37°C 20%
32°C 9%
33°C 9%
28°C or below
<1%
29°C
7%
30°C
7%
31°C
7%
32°C
9%
33°C
9%
34°C
9%
35°C
1%
36°C
7%
37°C
20%
38°C or higher
62%
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=oejn
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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: Aug 26, 2026, 12:58 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 highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=oejn
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.weather.gov/wrh/timeseries?site=oejnResolver
0x69c47De9D...Recent forecasts from global models and local observations indicate daytime highs in Jeddah on August 28 are most likely to reach or exceed 38°C under persistent high-pressure conditions, clear skies, and typical late-summer solar heating, driving the 62% market-implied probability for that outcome. Historical August averages near 38°C, combined with recent days recording 37–39°C maxima and minimal cloud cover or moisture, reinforce trader expectations of sustained heat. Forecast uncertainty remains due to potential minor shifts in steering winds or humidity, though official updates from agencies like the Saudi National Center for Meteorology are expected to refine the consensus before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions