Idaho drought conditions

• D0 Abnormally dry
• D1 Moderate drought
• D2 Severe drought
• D3 Extreme drought
• D4 Exceptional drought

• D0 Abnormally dry
• D1 Moderate drought
• D2 Severe drought
• D3 Extreme drought
• D4 Exceptional drought

Weeks with some drought

1,144 of 1,394 (82%)

Worst category reached

D4 Exceptional drought, last the week of Sep 15, 2026

Most widespread

100% in drought, week of Dec 21, 2021

Longest spell

353 weeks, Dec 17, 2019 to Sep 15, 2026

Current spell

353 weeks, since Dec 17, 2019

• Drought persists32 counties
• No_Drought9 counties
• Drought improves3 counties

Drawn from the Drought Impact Reporter and local observers.

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.

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.

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.