US drought

Iowa drought conditions

6.8% of Iowa is in drought on the Drought Monitor map of Sep 15, 2026, down 1.9 points from the week before. The worst is moderate drought. 14 of 99 counties have some drought.

Map valid Sep 15, 2026, released Thursday, Sep 17, 2026. The next map is due Thursday, Sep 24, 2026.

In drought
6.8%
Worst category
D1 Moderate drought
Abnormally dry or worse
14.3%
Counties with drought
14 of 99

Every countyLive radarIowa alertsIowa forecasts

This week’s map

The Drought Monitor for Iowa, valid Sep 15, 2026. County lines are drawn in; the categories are the same as the national map.

US Drought Monitor map of Iowa for Sep 15, 2026, shaded D0 abnormally dry through D4 exceptional drought
  • D0 Abnormally dry
  • D1 Moderate drought
  • D2 Severe drought
  • D3 Extreme drought
  • D4 Exceptional drought

Open the live map with the Drought Monitor

Map courtesy of the US Drought Monitor, NDMC-UNL, with USDA and NOAA. Original at droughtmonitor.unl.edu

This week's map, by category

Percent of Iowa in each category or worse, the Drought Monitor's own way of counting. In exactly one category this week: D0 7.5%, D1 6.8%, D2 0%, D3 0%, D4 0%; none 85.7%.

CategoryThis weekSep 15Last weekSep 83 months agoJun 16A year agoSep 16
D0 to D4 Abnormally dry or worse14.3%26%39%24.7%
D1 to D4 Moderate or worse6.8%8.6%7.1%0%
D2 to D4 Severe or worse0%0%0%0%
D3 to D4 Extreme or worse0%0%0%0%
D4 Exceptional drought0%0%0%0%
None85.7%74%61%75.3%

The past year

Percent of Iowa in each category, week by week. Each color includes the worse categories drawn over it.

Percent of Iowa in drought categories from Sep 16, 2025 to Sep 15, 2026. On the latest map, 6.8% is in drought (D1 or worse) and 14.3% is abnormally dry or worse.0%25%50%75%100%OctNovDec2026FebMarAprMayJunJulAugSep
  • D0 Abnormally dry
  • D1 Moderate drought
  • D2 Severe drought
  • D3 Extreme drought
  • D4 Exceptional drought
Every week in the chart
MapD0+D1+D2+D3+D4+
Sep 15, 202614.3%6.8%0%0%0%
Sep 8, 202626%8.6%0%0%0%
Sep 1, 202630.8%19.6%0.5%0%0%
Aug 25, 202630.5%19.6%0.5%0%0%
Aug 18, 202630.5%19.6%0.5%0%0%
Aug 11, 202636.5%24.5%2.7%0%0%
Aug 4, 202644.8%26.4%0.1%0%0%
Jul 28, 202646.5%22.5%0.1%0%0%
Jul 21, 202636.2%14%0%0%0%
Jul 14, 202630.5%11.3%0%0%0%
Jul 7, 202631.4%10.1%0%0%0%
Jun 30, 202633.3%12.2%0%0%0%
Jun 23, 202633%8.3%0%0%0%
Jun 16, 202639%7.1%0%0%0%
Jun 9, 202660.8%2.6%0%0%0%
Jun 2, 202672.5%2.6%0%0%0%
May 26, 202643.2%2.3%0.1%0%0%
May 19, 202624.9%2.3%0.1%0%0%
May 12, 202627.7%2.3%0.1%0%0%
May 5, 202610.8%2.1%0.1%0%0%
Apr 28, 202610.4%2.1%0.1%0%0%
Apr 21, 202612.9%4%0.5%0%0%
Apr 14, 202617.4%5%<0.1%0%0%
Apr 7, 202653.3%16.6%3.5%0%0%
Mar 31, 202657.4%38.5%6.8%0%0%
Mar 24, 202653.9%38.3%2.1%0%0%
Mar 17, 202653.9%37.4%2.1%0%0%
Mar 10, 202661.1%39.6%2.1%0%0%
Mar 3, 202673.8%43%2.1%0%0%
Feb 24, 202667.9%25.3%0%0%0%
Feb 17, 202662.4%11.4%0%0%0%
Feb 10, 202657.6%1%0%0%0%
Feb 3, 202646.5%0.9%0%0%0%
Jan 27, 202644.1%0.9%0%0%0%
Jan 20, 202644.2%0.9%0%0%0%
Jan 13, 202644.8%0.9%0%0%0%
Jan 6, 202659.6%6.1%0%0%0%
Dec 30, 202549.6%17.3%0%0%0%
Dec 23, 202549%17.4%0%0%0%
Dec 16, 202559.9%20.5%0%0%0%
Dec 9, 202565.1%21.4%0%0%0%
Dec 2, 202565.1%21.4%0%0%0%
Nov 25, 202571.7%21.4%0%0%0%
Nov 18, 202571.7%21.4%0%0%0%
Nov 11, 202567.3%15.4%0%0%0%
Nov 4, 202566.2%15.4%0%0%0%
Oct 28, 202566.2%11.9%0%0%0%
Oct 21, 202564%4.6%0%0%0%
Oct 14, 202553.2%4.7%0%0%0%
Oct 7, 202550.4%0.9%0%0%0%
Sep 30, 202530.1%0%0%0%0%
Sep 23, 202515.2%0%0%0%0%
Sep 16, 202524.7%0%0%0%0%

Since 2000

Every weekly map of Iowa since January 2000.

Percent of Iowa in drought categories from Jan 4, 2000 to Sep 15, 2026. On the latest map, 6.8% is in drought (D1 or worse) and 14.3% is abnormally dry or worse.0%25%50%75%100%200420082012201620202024
  • D0 Abnormally dry
  • D1 Moderate drought
  • D2 Severe drought
  • D3 Extreme drought
  • D4 Exceptional drought
Year by year
YearWorst categoryMost in droughtWeek ofWeeks with drought
2026D2 Severe drought43%Mar 337 of 37
2025D2 Severe drought72.9%Mar 443 of 52
2024D3 Extreme drought87.8%Oct 2937 of 53
2023D4 Exceptional drought96.6%Sep 1252 of 52
2022D4 Exceptional drought89%Nov 152 of 52
2021D3 Extreme drought76.2%Jun 2252 of 52
2020D3 Extreme drought82.8%Sep 126 of 52
2019D1 Moderate drought11.9%Sep 36 of 53
2018D3 Extreme drought19%Aug 2141 of 52
2017D3 Extreme drought44.6%Aug 1533 of 52
2016D1 Moderate drought17.9%Jul 510 of 52
2015D1 Moderate drought5.9%Oct 2716 of 52
2014D2 Severe drought56.7%Mar 1825 of 52
2013D4 Exceptional drought100%Jan 153 of 53
2012D4 Exceptional drought100%Jul 1752 of 52
2011D2 Severe drought68.5%Nov 121 of 52
2010None0%0 of 52
2009D1 Moderate drought0.9%Sep 224 of 52
2008D1 Moderate drought3.3%Sep 216 of 53
2007D2 Severe drought27.7%Jul 3111 of 52
2006D3 Extreme drought64.7%Feb 2850 of 52
2005D3 Extreme drought59.5%Oct 1833 of 52
2004D3 Extreme drought47.3%Jan 620 of 52
2003D3 Extreme drought99.9%Sep 949 of 52
2002D2 Severe drought40.4%Apr 924 of 53
2001D2 Severe drought32.1%Jan 2313 of 52
2000D3 Extreme drought100%Apr 452 of 52

Drought history since 2000

Some part of Iowa was in drought on 59% of the weekly maps since Jan 4, 2000, and exceptional drought (D4) last reached the state the week of Oct 10, 2023.

Weeks with some drought
828 of 1,394 (59%)
Worst category reached
D4 Exceptional drought, last the week of Oct 10, 2023
Most widespread
100% in drought, week of Jan 29, 2013
Longest spell
203 weeks, Jul 7, 2020 to May 21, 2024
Current spell
50 weeks, since Oct 7, 2025

Counties

Every county in Iowa: the worst category on this week's map, the share of it in drought, and CPC's monthly outlook at its center. Each page has the county's record since 2000.

CountyWorst categoryIn droughtChangeMonthly outlook
Adair CountyNone0%0No drought expected
Adams CountyNone0%0No drought expected
Allamakee CountyNone0%0No drought expected
Appanoose CountyNone0%0No drought expected
Audubon CountyNone0%0No drought expected
Benton CountyNone0%0No drought expected
Black Hawk CountyNone0%0No drought expected
Boone CountyNone0%0No drought expected
Bremer CountyNone0%0No drought expected
Buchanan CountyNone0%0No drought expected
Buena Vista CountyD0 Abnormally dry0%−0.4Drought persists
Butler CountyNone0%0No drought expected
Calhoun CountyNone0%0No drought expected
Carroll CountyNone0%0No drought expected
Cass CountyNone0%0No drought expected
Cedar CountyNone0%0No drought expected
Cerro Gordo CountyD0 Abnormally dry0%0No drought expected
Cherokee CountyD0 Abnormally dry0%−0.8Drought persists
Chickasaw CountyNone0%0No drought expected
Clarke CountyNone0%0No drought expected
Clay CountyNone0%0Drought persists
Clayton CountyNone0%0No drought expected
Clinton CountyNone0%0No drought expected
Crawford CountyD0 Abnormally dry0%0No drought expected
Dallas CountyNone0%0No drought expected
Davis CountyNone0%0No drought expected
Decatur CountyNone0%0No drought expected
Delaware CountyNone0%0No drought expected
Des Moines CountyNone0%0No drought expected
Dickinson CountyD0 Abnormally dry0%0No drought expected
Dubuque CountyD0 Abnormally dry0%0No drought expected
Emmet CountyD1 Moderate drought29.3%−22.0Drought persists
Fayette CountyNone0%0No drought expected
Floyd CountyNone0%0No drought expected
Franklin CountyNone0%0No drought expected
Fremont CountyNone0%0No drought expected
Greene CountyNone0%0No drought expected
Grundy CountyNone0%0No drought expected
Guthrie CountyNone0%0No drought expected
Hamilton CountyD0 Abnormally dry0%0No drought expected
Hancock CountyD1 Moderate drought84.9%0Drought persists
Hardin CountyNone0%0No drought expected
Harrison CountyD1 Moderate drought11%−1.8No drought expected
Henry CountyNone0%0No drought expected
Howard CountyNone0%0No drought expected
Humboldt CountyD1 Moderate drought62.7%−5.5Drought persists
Ida CountyD0 Abnormally dry0%−34.3Drought persists
Iowa CountyNone0%0No drought expected
Jackson CountyD0 Abnormally dry0%0No drought expected
Jasper CountyNone0%0No drought expected
Jefferson CountyNone0%0No drought expected
Johnson CountyNone0%0No drought expected
Jones CountyNone0%0No drought expected
Keokuk CountyNone0%0No drought expected
Kossuth CountyD1 Moderate drought91.1%−2.5Drought persists
Lee CountyNone0%0No drought expected
Linn CountyNone0%0No drought expected
Louisa CountyNone0%0No drought expected
Lucas CountyNone0%0No drought expected
Lyon CountyD1 Moderate drought0.1%−12.1Drought persists
Madison CountyNone0%0No drought expected
Mahaska CountyNone0%0No drought expected
Marion CountyNone0%0No drought expected
Marshall CountyNone0%0No drought expected
Mills CountyNone0%0No drought expected
Mitchell CountyNone0%0No drought expected
Monona CountyD1 Moderate drought81.3%0Drought persists
Monroe CountyNone0%0No drought expected
Montgomery CountyNone0%0No drought expected
Muscatine CountyNone0%0No drought expected
O'Brien CountyNone0%0Drought persists
Osceola CountyD0 Abnormally dry0%0No drought expected
Page CountyNone0%0No drought expected
Palo Alto CountyD1 Moderate drought16.8%−17.0Drought persists
Plymouth CountyD1 Moderate drought4%−33.8Drought persists
Pocahontas CountyD0 Abnormally dry0%−1.8No drought expected
Polk CountyNone0%0No drought expected
Pottawattamie CountyNone0%0No drought expected
Poweshiek CountyNone0%0No drought expected
Ringgold CountyNone0%0No drought expected
Sac CountyD0 Abnormally dry0%−2.4Drought persists
Scott CountyNone0%0No drought expected
Shelby CountyNone0%0No drought expected
Sioux CountyD0 Abnormally dry0%−24.8Drought persists
Story CountyNone0%0No drought expected
Tama CountyNone0%0No drought expected
Taylor CountyNone0%0No drought expected
Union CountyNone0%0No drought expected
Van Buren CountyNone0%0No drought expected
Wapello CountyNone0%0No drought expected
Warren CountyNone0%0No drought expected
Washington CountyNone0%0No drought expected
Wayne CountyNone0%0No drought expected
Webster CountyD1 Moderate drought0.8%0No drought expected
Winnebago CountyD1 Moderate drought97.3%0Drought persists
Winneshiek CountyNone0%0No drought expected
Woodbury CountyD1 Moderate drought64.5%−6.8Drought persists
Worth CountyD1 Moderate drought9.4%0No drought expected
Wright CountyD1 Moderate drought44.5%0Drought persists

Outlook

The Climate Prediction Center's monthly drought outlook for Sep 2026, read at the center of each county. Its seasonal outlook runs through December 31; each county page has both.

  • No_Drought81 counties
  • Drought persists18 counties

What drought has meant in Iowa

The National Drought Mitigation Center's examples of impacts observed in Iowa at each level of drought.

D0 Abnormally dry

  • Corn shows drought stress; soil is dry

D1 Moderate drought

  • Grasses are brown; more grass fires occur; burn bans are issued
  • Pond levels decline
  • Soybeans abort pods; corn test weights are struggling

D2 Severe drought

  • Dryland corn has extremely low yields; commodity shortages are noted; livestock is stressed
  • Fewer mosquitoes are observed
  • Fire danger is high
  • Surface water levels are low; algae blooms increase; voluntary water conservation is requested

D3 Extreme drought

  • Pastures are dry; producers sell cattle; crops are tested for toxins; crops have pest infestation
  • Seasonal allergies are worse; farmers are stressed about high feed prices
  • Trees drop leaves; acorns are underdeveloped
  • Warm water leads to fish kills; streambeds are low to dry

D4 Exceptional drought

  • Aquatic invertebrates in waterways increase
  • Extreme measures are taken to conserve water
  • Row crop yields and forage production have significant impacts

Drawn from the Drought Impact Reporter and local observers.

This week in the Midwest

The Drought Monitor authors' narrative for the map of Sep 15, 2026, released Sep 17, 2026.

Significant rainfall was observed over western Kentucky as well as over central-to-north Missouri, leading in removal of abnormally dry conditions. Heavy rain also fell in northwestern Iowa, northern Minnesota, and a band across central Wisconsin, with drought improvement as a result in these locations. Meanwhile, a mostly rain-free week in northern Illinois and Indiana caused introduction of an abnormally dry area. Extreme drought conditions can be found in southern Missouri, northern Wisconsin, and along the borders of Minnesota with both Wisconsin and North Dakota.

Looking ahead

Over the next five days leading up to next Tuesday, above normal rainfall is forecast in south Florida as well as a large area in southern Wisconsin and Minnesota into eastern Iowa and northern Illinois. The latter area of forecasted rainfall continues to the east through central Michigan, the southern Great Lakes, Pennsylvania, New York, and much of central and southern New England. Other locations with rainfall in the forecast this week are in the Appalachian Mountains, the western Great Plains, and the Four Corners states. Unfortunately, most of Texas, Oklahoma, Arkansas, Louisiana, Mississippi, and Alabama are forecast to receive little rainfall. Dry conditions are also forecast in California, Nevada, and Washington. Much above normal temperatures are forecast to continue this week in the central and southern U.S.

The 6- to 10-day outlook (September 22-26, 2026) favors above normal temperatures continuing over nearly all of the continental United States. Areas most likely to be above normal are again the south into the southeast, plus the far north. Hawaii is also likely to be above normal. For precipitation, the Eastern Seaboard is likely to have above normal rainfall as is the Southwest. The central U.S. into the upper Midwest is likely to have below normal rainfall. Hawaii and Alaska are both likely to have above normal rain during this period.

Written by Lindsay Johnson, National Drought Mitigation Center; David Mocko, SSAI, NASA/GSFC. The national narrative.

What this means

The five categories the Drought Monitor draws, and how the map is made.

D0 Abnormally dry
Going into or coming out of drought.
D1 Moderate drought
Some damage to crops and pastures; water shortages developing.
D2 Severe drought
Crop or pasture losses likely; water restrictions imposed.
D3 Extreme drought
Major crop and pasture losses; widespread water shortages.
D4 Exceptional drought
Exceptional and widespread losses; water emergencies.

The US Drought Monitor is drawn every week by authors at the National Drought Mitigation Center, USDA and NOAA, who weigh rainfall, soil moisture, streamflow, groundwater, vegetation health and reports from local observers. Each map shows conditions through Tuesday morning and is released on Thursday. It shows where drought is and how bad it is; it does not forecast it. CPC's outlooks do that.

Sources

Statistics and narrative from the US Drought Monitor, courtesy of the National Drought Mitigation Center at the University of Nebraska-Lincoln, with USDA and NOAA. Outlooks from the NOAA Climate Prediction Center. Impacts from NDMC's State Impacts tool.