Recent U.S. Drought Monitor data valid August 18, 2026, place D4 exceptional drought in limited portions of western Nebraska, Colorado, northeastern Oregon, and far southern Idaho amid expanding D2–D3 conditions across the Northern Plains and Northwest. Persistent above-normal temperatures and precipitation deficits have driven rapid soil-moisture losses and vegetation stress in these regions, while episodic rainfall has produced localized improvements elsewhere. With the August 25 map imminent, short-term forecast uncertainty around convective precipitation, evapotranspiration, and model divergence creates tight market-implied probabilities across bins; even modest rainfall shifts could push D4 coverage above or below the 0.05% state threshold in multiple areas, explaining the closely matched trader consensus.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHow many states will be in D4 (Exceptional Drought) — week of August 25, 2026?
10 or more states 46%
7-9 states 46%
1-2 states 45%
0 states 44%
0 states
44%
1-2 states
45%
3-4 states
43%
5-6 states
43%
7-9 states
46%
10 or more states
46%
10 or more states 46%
7-9 states 46%
1-2 states 45%
0 states 44%
0 states
44%
1-2 states
45%
3-4 states
43%
5-6 states
43%
7-9 states
46%
10 or more states
46%
Brackets: 0 / 1-2 / 3-4 / 5-6 / 7-9 / 10+. Exactly one bracket resolves "Yes".
The count ranges over all 48 coterminous states — the 48 states excluding Alaska and Hawaii. The District of Columbia and U.S. territories are not considered.
Each USDM release covers the seven-day period ending Tuesday at 8:00 AM ET and is published the following Thursday.
Resolution is based on the first published US Drought Monitor release for the listed week. Subsequent revisions will not be considered; the first published release is final.
The resolution source for this market is the US Drought Monitor at droughtmonitor.unl.edu.
Market Opened: Aug 20, 2026, 9:00 AM ET
Resolution Source
https://droughtmonitor.unl.edu/DmData/DataTables.aspxResolver
0x69c47De9D...Brackets: 0 / 1-2 / 3-4 / 5-6 / 7-9 / 10+. Exactly one bracket resolves "Yes".
The count ranges over all 48 coterminous states — the 48 states excluding Alaska and Hawaii. The District of Columbia and U.S. territories are not considered.
Each USDM release covers the seven-day period ending Tuesday at 8:00 AM ET and is published the following Thursday.
Resolution is based on the first published US Drought Monitor release for the listed week. Subsequent revisions will not be considered; the first published release is final.
The resolution source for this market is the US Drought Monitor at droughtmonitor.unl.edu.
Resolution Source
https://droughtmonitor.unl.edu/DmData/DataTables.aspxResolver
0x69c47De9D...Recent U.S. Drought Monitor data valid August 18, 2026, place D4 exceptional drought in limited portions of western Nebraska, Colorado, northeastern Oregon, and far southern Idaho amid expanding D2–D3 conditions across the Northern Plains and Northwest. Persistent above-normal temperatures and precipitation deficits have driven rapid soil-moisture losses and vegetation stress in these regions, while episodic rainfall has produced localized improvements elsewhere. With the August 25 map imminent, short-term forecast uncertainty around convective precipitation, evapotranspiration, and model divergence creates tight market-implied probabilities across bins; even modest rainfall shifts could push D4 coverage above or below the 0.05% state threshold in multiple areas, explaining the closely matched trader consensus.
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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