The historic drought baking the nation’s breadbasket is about to hit American consumers where it hurts most — the supermarket checkout.

“Prices are going to go up,” Justin Gardner, assistant professor of agribusiness at Middle Tennessee State University, told the Christian Science Monitor. “The only question is when.”

Everything from breakfast cereal to roast beef will cost more as a result of the worst drought in 24 years, which has already prompted authorities to declare more than 1,000 counties in 26 states — nearly two-thirds of land in the lower 48 states, stretching from Nevada to South Carolina — natural disaster areas.

Only in the 1930s and the 1950s has a drought covered more land, according to federal figures released Monday. So far, officials say there’s little risk of a Dust Bowl-type catastrophe, but crop losses could mount if rain doesn’t come soon — and that means across-the-board higher food prices.

The U.S. Department of Agriculture has lowered its crop projections for corn by 12 percent, prompting a 34 percent hike in prices in recent weeks. Since corn goes into so many food products for both humans and livestock, its effect on overall food prices is massive.

The rising prices of livestock feed are already impacting some businesses.

In Illinois, the drought has already taken a heavy toll, with more than 80 percent of corn, soybean and other crops considered to be in fair condition or worse. Less than 10 percent of farm fields have adequate topsoil moisture. Farmer Kenny Brummer has lost 800 acres of corn that he grows to feed his 400 head of cattle and 30,000 hogs. Now he’s scrambling to find hundreds of thousands of bushels of replacement feed.

USDA officials are predicting less of an impact on prices, the Christian Science Monitor reports. The agency estimates that only 15 cents of each dollar spent on groceries goes to farmers. Labor and processing make up the bulk of food costs, and that won’t be impacted much by the drought.

The federal government is already moving to help farmers and ranchers. Agriculture Secretary Tom Vilsack last week announced plans for streamlining the aid process. A major goal is to cut the time it takes to declare an agricultural disaster area. He also reduced interest rates for emergency loans and made it cheaper for farmers to graze livestock or cut hay on lands otherwise locked up in a conservation program.

Some state governments are stepping in, too. In Wisconsin, Gov. Scott Walker declared a state of emergency in 42 counties last week to speed up the issuance of permits for temporarily using stream or lake water for irrigation.

READ MORE: FOX NEWS