Idaho drought

Is Jerome County in a drought?

D3 Extreme drought

Yes. All of Jerome County is in drought on the Drought Monitor map of Sep 15, 2026, the worst of it extreme drought (D3). That is unchanged from a week earlier. It has been in drought since the week of Jul 1, 2025.

Map valid Sep 15, 2026, released Thursday, Sep 17, 2026. The next map is due Thursday, Sep 24, 2026. Statewide, 73.2% of Idaho is in drought.

Jerome County forecastWeather alertsLive radar here

This week’s map

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

US Drought Monitor map of Idaho 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 Jerome County in each category or worse, the Drought Monitor's own way of counting. In exactly one category this week: D0 0%, D1 0%, D2 0%, D3 100%, D4 0%; none 0%.

CategoryThis weekSep 15Last weekSep 83 months agoJun 16A year agoSep 16
D0 to D4 Abnormally dry or worse100%100%100%100%
D1 to D4 Moderate or worse100%100%100%100%
D2 to D4 Severe or worse100%100%100%100%
D3 to D4 Extreme or worse100%100%100%0%
D4 Exceptional drought0%0%0%0%
None0%0%0%0%

The past year

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

Percent of Jerome County in drought categories from Sep 16, 2025 to Sep 15, 2026. On the latest map, 100% is in drought (D1 or worse) and 100% 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, 2026100%100%100%100%0%
Sep 8, 2026100%100%100%100%0%
Sep 1, 2026100%100%100%100%0%
Aug 25, 2026100%100%100%100%0%
Aug 18, 2026100%100%100%100%0%
Aug 11, 2026100%100%100%100%0%
Aug 4, 2026100%100%100%100%0%
Jul 28, 2026100%100%100%100%0%
Jul 21, 2026100%100%100%100%0%
Jul 14, 2026100%100%100%100%0%
Jul 7, 2026100%100%100%100%0%
Jun 30, 2026100%100%100%100%0%
Jun 23, 2026100%100%100%100%0%
Jun 16, 2026100%100%100%100%0%
Jun 9, 2026100%100%100%100%0%
Jun 2, 2026100%100%100%100%0%
May 26, 2026100%100%100%100%0%
May 19, 2026100%100%100%100%0%
May 12, 2026100%100%100%0%0%
May 5, 2026100%100%100%0%0%
Apr 28, 2026100%100%100%0%0%
Apr 21, 2026100%100%100%0%0%
Apr 14, 2026100%100%100%0%0%
Apr 7, 2026100%100%100%0%0%
Mar 31, 2026100%100%100%0%0%
Mar 24, 2026100%100%0%0%0%
Mar 17, 2026100%100%0%0%0%
Mar 10, 2026100%100%0%0%0%
Mar 3, 2026100%100%0%0%0%
Feb 24, 2026100%100%0%0%0%
Feb 17, 2026100%100%0%0%0%
Feb 10, 2026100%100%0%0%0%
Feb 3, 2026100%100%0%0%0%
Jan 27, 2026100%100%0%0%0%
Jan 20, 2026100%100%0%0%0%
Jan 13, 2026100%100%0%0%0%
Jan 6, 2026100%100%0%0%0%
Dec 30, 2025100%100%0%0%0%
Dec 23, 2025100%100%0%0%0%
Dec 16, 2025100%100%0%0%0%
Dec 9, 2025100%100%0%0%0%
Dec 2, 2025100%100%0%0%0%
Nov 25, 2025100%100%0%0%0%
Nov 18, 2025100%100%0%0%0%
Nov 11, 2025100%100%0%0%0%
Nov 4, 2025100%100%100%0%0%
Oct 28, 2025100%100%100%0%0%
Oct 21, 2025100%100%100%0%0%
Oct 14, 2025100%100%100%0%0%
Oct 7, 2025100%100%100%0%0%
Sep 30, 2025100%100%100%0%0%
Sep 23, 2025100%100%100%0%0%
Sep 16, 2025100%100%100%0%0%

Since 2000

Every weekly map of Jerome County since January 2000.

Percent of Jerome County in drought categories from Jan 4, 2000 to Sep 15, 2026. On the latest map, 100% is in drought (D1 or worse) and 100% 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
2026D3 Extreme drought100%Jan 637 of 37
2025D2 Severe drought100%Jul 132 of 52
2024D1 Moderate drought27.2%Aug 1321 of 53
2023D1 Moderate drought100%Jan 312 of 52
2022D2 Severe drought100%Jan 452 of 52
2021D3 Extreme drought100%May 1852 of 52
2020D1 Moderate drought37.3%Nov 345 of 52
2019D0 Abnormally dry0%0 of 53
2018D0 Abnormally dry0%0 of 52
2017D0 Abnormally dry0%0 of 52
2016D1 Moderate drought88.6%Jan 59 of 52
2015D3 Extreme drought100%Jan 652 of 52
2014D3 Extreme drought100%Jan 752 of 52
2013D2 Severe drought100%Jan 132 of 53
2012D1 Moderate drought100%Aug 2119 of 52
2011D0 Abnormally dry0%0 of 52
2010D0 Abnormally dry0%0 of 52
2009D1 Moderate drought100%Jan 617 of 52
2008D2 Severe drought100%Jan 153 of 53
2007D2 Severe drought100%Jul 1025 of 52
2006D0 Abnormally dry0%0 of 52
2005D4 Exceptional drought100%Jan 444 of 52
2004D4 Exceptional drought100%Jan 652 of 52
2003D4 Exceptional drought100%Jan 752 of 52
2002D3 Extreme drought100%Jan 153 of 53
2001D3 Extreme drought100%Feb 1346 of 52
2000D2 Severe drought100%Aug 115 of 52

Drought history since 2000

Some part of Jerome County was in drought on 55% of the weekly maps since Jan 4, 2000, and exceptional drought (D4) last reached the county the week of Apr 19, 2005.

Weeks with some drought
772 of 1,394 (55%)
Worst category reached
D4 Exceptional drought, last the week of Apr 19, 2005
Most widespread
100% in drought, week of Sep 15, 2026
Longest spell
247 weeks, Feb 13, 2001 to Nov 1, 2005
Current spell
64 weeks, since Jul 1, 2025

Outlook

The Climate Prediction Center's drought outlooks at the center of Jerome County: whether drought is expected to develop, persist, improve or end.

Monthly outlook, Sep 2026
Drought persists
Seasonal outlook, through December 31 (issued Sep 17)
Drought persists

The monthly outlook is issued on the last day of each month, the seasonal one on the third Thursday. CPC's discussion.

What drought has meant in Idaho

The National Drought Mitigation Center's examples of impacts observed in Idaho at each level of drought, starting with this week's worst here.

D3 Extreme drought This week

  • Dryland farms are left fallow; forage is limited; cattle herds are cut
  • Number of fires increase
  • Spring snowpack is very low

D0 Abnormally dry

  • Irrigation demand is higher than normal
  • Ski areas open later, visitation is lower, snowpack is lower

D1 Moderate drought

  • Deer are scrawny; bird population suffers due to loss of food and habitat; trees are stressed
  • Dryland hay and grain crop yields are low; other crops and pasture are in poor condition
  • Fire risk is elevated, fires spread easily
  • Well levels decline; reservoir levels are low; water shortages occur; water conservation programs are in place

D2 Severe drought

  • Grazing season is shortened, vegetation is sparse; crops are left unharvested; feedlots are not profitable
  • Hydroelectric power is down; irrigation water allotments are significantly curtailed
  • River levels are very low

Drawn from the Drought Impact Reporter and local observers.

Burn bans and water restrictions

The Drought Monitor does not issue burn bans or water restrictions. Jerome County's officials, the state forestry or fire agency, and local water utilities set them, often once drought reaches D2 or dry fuels raise the fire danger. Check the county's emergency management office or fire marshal for a ban in force, and the alerts page for red flag warnings and fire weather watches.

This week in the West

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

An area from southwestern Oregon to central Washington into northern Idaho and Montana received some welcome rainfall during the week. The rain resulted in regional improvements in drought conditions. One location that just missed out was in northwest Washington on the Canadian border, resulting in a drought degradation, where continued low streamflows were observed. There were also areas on the California-Nevada border and central Arizona with drought degradation that also received little-to-no rainfall. Extreme drought is shown over much of central Oregon, central Utah, southern Idaho down into northern Nevada, and small areas in northern Washington and southern Arizona. Exceptional drought continues in southern Idaho, northern Nevada, and northeastern Oregon.

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.

Nearby

The counties bordering Jerome County, with the worst category on this week's map.

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.