National Weather Service forecasts for August 31 indicate scattered showers and thunderstorms likely across much of the eastern and central United States, driven by lingering moisture and a weak upper-level trough promoting afternoon convection, while the Southwest, southern Plains, and West Coast remain mostly dry under high pressure. Official NWS products highlight 30-70% precipitation probabilities for cities from New York and Atlanta to Chicago and the Gulf Coast, consistent with typical late-summer patterns where diurnal heating fuels isolated to scattered storms. Model consensus from the National Digital Forecast Database shows limited overnight activity and highest chances tied to sea-breeze or frontal boundaries, with total rainfall amounts generally under 0.5 inches except in localized heavy cells. Updated short-range guidance and next NWS model runs will refine timing and coverage ahead of the 24-hour period ending August 31.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWhere will it rain on August 31?
New York, NY
50%
Los Angeles, CA
14%
Chicago, IL
50%
Houston, TX
99%
Dallas, TX
99%
Phoenix, AZ
50%
Philadelphia, PA
50%
Denver, CO
50%
Washington, DC
50%
Atlanta, GA
50%
Miami, FL
50%
Seattle, WA
50%
Boston, MA
99%
New Orleans, LA
99%
San Francisco, CA
50%
$0.00 Vol.
New York, NY
50%
Los Angeles, CA
14%
Chicago, IL
50%
Houston, TX
99%
Dallas, TX
99%
Phoenix, AZ
50%
Philadelphia, PA
50%
Denver, CO
50%
Washington, DC
50%
Atlanta, GA
50%
Miami, FL
50%
Seattle, WA
50%
Boston, MA
99%
New Orleans, LA
99%
San Francisco, CA
50%
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.
Market Opened: Aug 30, 2026, 7:09 AM ET
Resolver
0x65070BE91...Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.
Resolver
0x65070BE91...National Weather Service forecasts for August 31 indicate scattered showers and thunderstorms likely across much of the eastern and central United States, driven by lingering moisture and a weak upper-level trough promoting afternoon convection, while the Southwest, southern Plains, and West Coast remain mostly dry under high pressure. Official NWS products highlight 30-70% precipitation probabilities for cities from New York and Atlanta to Chicago and the Gulf Coast, consistent with typical late-summer patterns where diurnal heating fuels isolated to scattered storms. Model consensus from the National Digital Forecast Database shows limited overnight activity and highest chances tied to sea-breeze or frontal boundaries, with total rainfall amounts generally under 0.5 inches except in localized heavy cells. Updated short-range guidance and next NWS model runs will refine timing and coverage ahead of the 24-hour period ending August 31.
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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