FuelCast

Will diesel prices go up next week in California?

Diesel prices in California are showing no clear direction in the week to Monday, October 19. The current average is $8.091 per gallon (EIA, week of Oct 12, 2026).

Running a truck or a fleet, the timing of a fill-up matters: fill up right before a jump and every tank costs more. Here is where diesel in California stands and which way it is heading next week.

Diesel prices in California this week

FuelAverage priceChange vs last weekNext week
Diesel$8.091/gal
week of Oct 12, 2026
+0.9¢No clear direction yet
Regular gasoline$6.104/gal
week of Oct 12, 2026
-12.3¢Very likely to fall

Weekly averages are published by the EIA, usually on Mondays. The next one is due Monday, October 19.

Know before you fill up

FuelCast shows whether prices near you are likely to rise or fall, the cheapest stations around you and the best day to fill up, with an alert when it matters.

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Diesel price outlook by area

Gas prices

Questions

Will diesel prices go up next week in California?

Diesel prices in California are showing no clear direction in the week to Monday, October 19.

What is the average diesel price in California right now?

$8.091 per gallon in the EIA weekly survey for the week of Oct 12, 2026.

When are new diesel price averages published?

The U.S. Energy Information Administration publishes weekly retail averages, usually on Monday afternoons. FuelCast updates its outlook after each release.

Source: U.S. Energy Information Administration (EIA), Weekly Retail Gasoline and Diesel Prices · Public domain (U.S. Government work)