Recent US Drought Monitor data valid August 18, 2026, and released August 20 confirm D4 exceptional drought in western Nebraska, parts of Colorado, northeastern Oregon, and far southern Idaho, with extreme-to-exceptional conditions also persisting in western Oklahoma, the Texas Panhandle, and southeastern Arkansas. These areas reflect multi-week deficits in precipitation, elevated temperatures driving flash drought, depleted soil moisture, and low streamflow, particularly under persistent high pressure suppressing rainfall across the southern Plains. Heavy rains earlier in August improved conditions in parts of the Midwest and central High Plains, but limited precipitation and above-normal warmth sustained or worsened D4 in core western and Plains zones. The next USDM map, covering the week ending August 25 and released August 27, will incorporate the 6–10-day outlook favoring above-normal precipitation across the northern Eastern Seaboard and parts of the Great Lakes while below-normal rainfall is expected in much of Texas, alongside widespread above-normal temperatures. Traders should monitor updated model runs and any rapid changes in short-term indicators through the data cutoff on August 25.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedExceptional drought (D4) by state — week of August 25, 2026

Alabama
50%

Arizona
50%

Arkansas
50%

California
51%

Colorado
77%

Delaware
50%

Florida
50%

Georgia
50%

Idaho
50%

Illinois
50%

Indiana
50%

Iowa
51%

Kansas
49%

Kentucky
50%

Louisiana
50%

Maryland
50%

Minnesota
49%

Mississippi
49%

Missouri
50%

Montana
50%

Nebraska
78%

Nevada
30%

New Jersey
47%

New Mexico
53%

North Carolina
51%

North Dakota
50%

Ohio
50%

Oklahoma
49%

Oregon
49%

Pennsylvania
50%

South Carolina
49%

South Dakota
50%

Tennessee
50%

Texas
67%

Utah
60%

Virginia
48%

Washington
50%

West Virginia
50%

Wisconsin
51%

Wyoming
49%
$1,026 Vol.

Alabama
50%

Arizona
50%

Arkansas
50%

California
51%

Colorado
77%

Delaware
50%

Florida
50%

Georgia
50%

Idaho
50%

Illinois
50%

Indiana
50%

Iowa
51%

Kansas
49%

Kentucky
50%

Louisiana
50%

Maryland
50%

Minnesota
49%

Mississippi
49%

Missouri
50%

Montana
50%

Nebraska
78%

Nevada
30%

New Jersey
47%

New Mexico
53%

North Carolina
51%

North Dakota
50%

Ohio
50%

Oklahoma
49%

Oregon
49%

Pennsylvania
50%

South Carolina
49%

South Dakota
50%

Tennessee
50%

Texas
67%

Utah
60%

Virginia
48%

Washington
50%

West Virginia
50%

Wisconsin
51%

Wyoming
49%
D4 area below 0.05% is treated as cartographic noise at state borders and resolves "No".
Colorado carries a market in every month of the year, so this market exists for the week valid August 25, 2026. Weeks outside that window have no Colorado market and make no claim about Colorado's drought.
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
0x65070BE91...D4 area below 0.05% is treated as cartographic noise at state borders and resolves "No".
Colorado carries a market in every month of the year, so this market exists for the week valid August 25, 2026. Weeks outside that window have no Colorado market and make no claim about Colorado's drought.
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
0x65070BE91...Recent US Drought Monitor data valid August 18, 2026, and released August 20 confirm D4 exceptional drought in western Nebraska, parts of Colorado, northeastern Oregon, and far southern Idaho, with extreme-to-exceptional conditions also persisting in western Oklahoma, the Texas Panhandle, and southeastern Arkansas. These areas reflect multi-week deficits in precipitation, elevated temperatures driving flash drought, depleted soil moisture, and low streamflow, particularly under persistent high pressure suppressing rainfall across the southern Plains. Heavy rains earlier in August improved conditions in parts of the Midwest and central High Plains, but limited precipitation and above-normal warmth sustained or worsened D4 in core western and Plains zones. The next USDM map, covering the week ending August 25 and released August 27, will incorporate the 6–10-day outlook favoring above-normal precipitation across the northern Eastern Seaboard and parts of the Great Lakes while below-normal rainfall is expected in much of Texas, alongside widespread above-normal temperatures. Traders should monitor updated model runs and any rapid changes in short-term indicators through the data cutoff on August 25.
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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