Yes, experts say fuel volatility will likely persist through summer 2026, with the national average holding around $4.50 per gallon and potentially climbing higher during peak driving season. The primary culprit is a geopolitical disruption in the Strait of Hormuz that has suspended critical flows of crude oil and refined fuels—approximately 20 million barrels per day—creating an artificial shortage that shows no immediate signs of resolution. Gasoline futures are trading near a four-year high of $3.75 per gallon, and oil prices are hovering around $100 per barrel, meaning relief at the pump remains months away at best.
The math is stark: prices are already 60% higher year-to-date than they were in May 2025, and every single state has recorded double-digit increases. Whether you’re buying gas in Oklahoma at $3.94 per gallon or California at $6.15, the trajectory is the same—upward pressure that will intensify as Americans hit the road for summer vacations, weekend trips, and seasonal travel. Energy experts warn that the combination of peak summer demand, refinery maintenance schedules, and hurricane season creates a perfect storm for continued volatility through at least August.
Table of Contents
- Why Is Summer Fuel Volatility Expected to Continue Through 2026?
- How High Can Summer Gas Prices Climb, and What Are the Limits of Price Forecasts?
- The Strait of Hormuz Blockade and Its Direct Impact on American Drivers
- Expert Forecasts for Summer Driving Season and Why They Matter
- Seasonal and Operational Factors That Could Worsen Summer Volatility
- Regional Price Variations and Why Your Local Gas Price May Differ Sharply
- What to Expect After Summer and Long-Term Price Outlook
- Conclusion
Why Is Summer Fuel Volatility Expected to Continue Through 2026?
The Strait of Hormuz blockade that began in late 2025 remains the single largest driver of current and expected summer volatility. This waterway handles roughly one-third of all seaborne traded oil globally, and the suspension of traffic through it has created a cascading effect: refineries worldwide are scrambling for crude, demand for alternative supply routes has spiked, and prices have climbed as a result. The blockade has effectively removed 20 million barrels per day from the global market—a shortage so large that it cannot be easily replaced by tapping strategic reserves or increasing production elsewhere quickly.
Summer volatility will likely worsen because demand always spikes during the warmest months. Americans drive more in June, July, and August; road trips increase; and airlines ramp up fuel consumption. The EIA projects that this seasonal demand surge will collide with constrained global supplies, creating the conditions for price swings rather than steady improvement. One real-world example: in May 2026 alone, gasoline futures touched a four-year high of $3.75 per gallon on May 4, then retreated slightly, but have not stabilized—the pattern of sharp moves up and down is expected to continue as markets react to geopolitical news, demand reports, and supply changes.
How High Can Summer Gas Prices Climb, and What Are the Limits of Price Forecasts?
Current expert forecasts show wide ranges, which itself reflects the uncertainty baked into the market. The EIA projects a 2026 annual average of $3.88 per gallon, while GasBuddy’s outlook suggests a year-round average of $2.97 per gallon—a significant gap that illustrates how difficult it is to predict fuel prices in a volatile environment. The most important limitation: all forecasts assume the Strait of Hormuz blockade will eventually be resolved.
If the geopolitical conflict deepens or extends further, actual prices could exceed all current projections by a substantial margin. The summer outlook specifically suggests prices could reach the low $3.20s per gallon in June or July before easing, according to GasBuddy’s analysis—but this assumes resolution of the blockade in the coming weeks. If disruptions continue, summer could easily see sustained prices in the $4.50-$5.00 range across most of the nation, with coastal states like California remaining well above $5.50 per gallon. A critical warning: price forecasts from May 2026 did not anticipate the full scope of supply constraints, so actual summer prices may surprise on the upside.
The Strait of Hormuz Blockade and Its Direct Impact on American Drivers
The Strait of Hormuz connects the Persian Gulf to the rest of the world’s oil markets. When traffic through it was suspended in late 2025, it cut off supply routes that historically delivered 20 million barrels per day of crude and refined fuels to global markets. To put this in concrete terms: that is roughly equivalent to the entire daily crude oil production of the United States, Saudi Arabia, and Russia combined. No single strategic action has disrupted global energy markets so completely since the 1973 oil embargo.
Refineries that normally source crude from the Gulf have had to pivot to alternative suppliers, often at higher prices or with longer shipping times. This creates a domino effect: higher crude costs → higher refining costs → higher pump prices. For the American consumer, the blockade is the reason your gas station prices have jumped 44% across the nation in a compressed timeframe. The blockade remains unresolved as of mid-May 2026, and experts warn that even if it is lifted tomorrow, the global supply chain will require many months—potentially years—to fully normalize. Oil futures are trading around $100 per barrel partly because markets are pricing in continued disruption risk.
Expert Forecasts for Summer Driving Season and Why They Matter
The EIA and GasBuddy have both issued 2026 forecasts, but they diverge significantly, creating uncertainty for households and businesses trying to budget. The EIA’s projection of an $3.88 annual average suggests that while summer will be elevated, prices could ease meaningfully in the fall and winter. GasBuddy’s $2.97 average is more optimistic overall, implying faster resolution of the blockade and quicker normalization of refining capacity. The difference between these forecasts translates into $0.30-$0.50 per gallon variations—meaningful money for families filling up twice a week.
Diesel prices are also expected to remain elevated through summer. The EIA and GasBuddy both project diesel will average around $3.55 per gallon in 2026, up from historical norms of $2.50-$3.00. For trucking companies, delivery services, and anyone relying on diesel fuel, this represents a significant cost increase that often gets passed along to consumers in the form of higher prices for goods and services. A concrete example: a trucking company hauling goods across the country will pay 20-40% more in fuel than it did in 2025, and that cost typically flows through to retail prices for groceries, clothing, and other goods.
Seasonal and Operational Factors That Could Worsen Summer Volatility
Beyond the Strait of Hormuz, two other seasonal factors will add to summer volatility: scheduled refinery maintenance and hurricane season. Refineries typically perform maintenance in spring and early summer when demand is rising but before peak driving season, creating a temporary supply crunch. Hurricane season, which officially begins June 1, poses a direct risk to Gulf Coast refineries and oil platforms.
A major hurricane can knock major facilities offline for weeks, instantly reducing gasoline and diesel supply and spiking prices. A critical limitation of current forecasts: they do not fully account for the cumulative effect of these seasonal pressures colliding with the already-constrained global supply situation. If a significant hurricane impacts the Gulf Coast in July or August, prices could spike $0.50-$1.00 per gallon above current forecasts within days. This is why experts consistently caution that summer 2026 will be “volatile”—the underlying conditions create multiple pressure points for prices to move sharply either direction.
Regional Price Variations and Why Your Local Gas Price May Differ Sharply
Gas prices are not uniform across America; regional variations reflect local supply, demand, transportation costs, and state regulations. California has the highest average at $6.15 per gallon, driven by strict state fuel regulations, distant refinery capacity, and high demand in a dense population center. Washington state ($5.77) and Hawaii ($5.64) round out the most expensive markets.
At the other end, Oklahoma ($3.94), Mississippi ($3.98), and Louisiana ($4.00) have the lowest prices, partly because they have direct access to Gulf Coast refineries and lower population density reduces transportation costs. The vast majority of Americans—in 39 states—are experiencing prices in the $4.00-$5.00 range, with only 5 states below $4.00 per gallon. This concentration illustrates how the Strait of Hormuz blockade is hitting the entire nation broadly, while leaving only a handful of low-cost states unscathed. For summer planning, regional variations mean that a road trip from Texas to California will reveal sharp price jumps as you move west, reinforcing the reality that fuel costs are a significant factor in vacation budgeting.
What to Expect After Summer and Long-Term Price Outlook
The good news is that current expert forecasts suggest prices will ease in the fall and into 2027, assuming the Strait of Hormuz blockade is resolved within the next few months. The EIA projects a 2027 average of $3.62 per gallon, down from the 2026 projection of $3.88. GasBuddy’s 2026 forecast of $2.97 annual average implies that much of the year will see lower prices than the May spring spike, with relief arriving by late summer or early fall.
However, experts caution that price relief could take many months to over a year once the blockade is finally lifted, as global supply chains normalize and strategic reserves are restocked. The path from current $4.50-$6.15 prices back to pre-2025 levels of $2.50-$3.00 will not be direct. Markets will likely see a series of intermediate plateaus as refinery capacity comes back online, the global oil market rebalances, and demand patterns shift seasonally. For households and businesses planning beyond summer, the realistic expectation is that 2027 will be noticeably cheaper than summer 2026, but still elevated compared to 2024 prices.
Conclusion
Gas prices today remain elevated at a $4.50 national average, and expert consensus is clear: volatility will continue through summer 2026 due to the ongoing Strait of Hormuz blockade and predictable seasonal demand spikes. Prices are 60% higher year-to-date than May 2025, and every state has experienced double-digit increases. While forecasts diverge on exact summer peaks, they converge on the fact that relief will not arrive quickly—the earliest realistic timeline for meaningful price decreases is late summer or early fall, with prices stabilizing closer to historical norms only in 2027.
For consumers and policymakers, the practical implication is to budget for elevated fuel costs through the summer months and beyond. Monitor your local gas prices, plan road trips with fuel costs in mind, and be prepared for continued week-to-week volatility as geopolitical and weather events shape supplies. Once the Strait of Hormuz blockade resolves, watch for price declines, but expect the normalization process to unfold over months rather than weeks—a reminder that energy markets are deeply interconnected and global disruptions take time to work through the system.