Latest National Weather Service and model guidance point to mostly sunny skies and light easterly flow over Miami on August 18, supporting a daytime high near 94–95 °F amid typical late-summer subtropical heating. Persistent high pressure and minimal cloud cover have allowed strong insolation in recent days, pushing observed maxima into the low-to-mid 90s and sustaining elevated heat-index values above 105 °F. While normal August highs average near 89–91 °F, the current pattern favors readings 3–6 °F above climatology. Trader consensus clustering on 98–99 °F (53.5 % implied) versus lower-probability 100–101 °F outcomes reflects expectations that the warmest model solutions or slight forecast upgrades could materialize before the daily maximum is recorded at official Miami sites. Updated NWS briefings and afternoon observations remain the key near-term catalysts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Miami on August 18?
Highest temperature in Miami on August 18?
98-99°F 56%
96-97°F 22%
100-101°F 11%
94-95°F 6%
NEW
NEW
Aug 18, 2026
91°F or below
<1%
92-93°F
2%
94-95°F
6%
96-97°F
22%
98-99°F
56%
100-101°F
11%
102-103°F
3%
104-105°F
<1%
106-107°F
<1%
108-109°F
<1%
110°F or higher
<1%
98-99°F 56%
96-97°F 22%
100-101°F 11%
94-95°F 6%
NEW
NEW
Aug 18, 2026
91°F or below
$45 Vol.
<1%
92-93°F
$30 Vol.
2%
94-95°F
$153 Vol.
6%
96-97°F
$242 Vol.
22%
98-99°F
$315 Vol.
56%
100-101°F
$431 Vol.
11%
102-103°F
$170 Vol.
3%
104-105°F
$5 Vol.
<1%
106-107°F
$40 Vol.
<1%
108-109°F
$40 Vol.
<1%
110°F or higher
$40 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Miami Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 Fahrenheit (eg, 21°F). 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.Latest National Weather Service and model guidance point to mostly sunny skies and light easterly flow over Miami on August 18, supporting a daytime high near 94–95 °F amid typical late-summer subtropical heating. Persistent high pressure and minimal cloud cover have allowed strong insolation in recent days, pushing observed maxima into the low-to-mid 90s and sustaining elevated heat-index values above 105 °F. While normal August highs average near 89–91 °F, the current pattern favors readings 3–6 °F above climatology. Trader consensus clustering on 98–99 °F (53.5 % implied) versus lower-probability 100–101 °F outcomes reflects expectations that the warmest model solutions or slight forecast upgrades could materialize before the daily maximum is recorded at official Miami sites. Updated NWS briefings and afternoon observations remain the key near-term catalysts.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Miami Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 Fahrenheit (eg, 21°F). 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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Miami Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 Fahrenheit (eg, 21°F). 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 16, 2026, 9:56 PM ET
Volume
$1,511End Date
Aug 18, 2026Market Opened
Aug 16, 2026, 9:56 PM ETResolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Miami Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 Fahrenheit (eg, 21°F). 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.Latest National Weather Service and model guidance point to mostly sunny skies and light easterly flow over Miami on August 18, supporting a daytime high near 94–95 °F amid typical late-summer subtropical heating. Persistent high pressure and minimal cloud cover have allowed strong insolation in recent days, pushing observed maxima into the low-to-mid 90s and sustaining elevated heat-index values above 105 °F. While normal August highs average near 89–91 °F, the current pattern favors readings 3–6 °F above climatology. Trader consensus clustering on 98–99 °F (53.5 % implied) versus lower-probability 100–101 °F outcomes reflects expectations that the warmest model solutions or slight forecast upgrades could materialize before the daily maximum is recorded at official Miami sites. Updated NWS briefings and afternoon observations remain the key near-term catalysts.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Miami Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 Fahrenheit (eg, 21°F). 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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 18 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Miami Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 Fahrenheit (eg, 21°F). 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
$1,511End Date
Aug 18, 2026Market Opened
Aug 16, 2026, 9:56 PM ETResolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...Latest National Weather Service and model guidance point to mostly sunny skies and light easterly flow over Miami on August 18, supporting a daytime high near 94–95 °F amid typical late-summer subtropical heating. Persistent high pressure and minimal cloud cover have allowed strong insolation in recent days, pushing observed maxima into the low-to-mid 90s and sustaining elevated heat-index values above 105 °F. While normal August highs average near 89–91 °F, the current pattern favors readings 3–6 °F above climatology. Trader consensus clustering on 98–99 °F (53.5 % implied) versus lower-probability 100–101 °F outcomes reflects expectations that the warmest model solutions or slight forecast upgrades could materialize before the daily maximum is recorded at official Miami sites. Updated NWS briefings and afternoon observations remain the key near-term catalysts.
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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