Great Falls Gas Prices Dip as Diesel Reaches $5.121

Regular gasoline prices in the Great Falls metro dipped slightly in AAA’s August 1, 2026, price check, while diesel rose to $5.121 per gallon.

AAA listed the Great Falls metro average at $4.289 per gallon for regular gasoline and $5.121 per gallon for diesel. The fuels moved in opposite directions over the short term, with regular gas easing modestly while diesel increased.

Regular gas is slightly lower but remains well above last year

The regular-gas average fell 0.4 cents from the previous day and 0.9 cents from a week earlier. Those declines were modest. The average was still up 39.2 cents from one month ago and $1.037 from the same point last year.

For households and commuters, the day-to-day change may be difficult to notice at the pump. The year-over-year difference is more substantial, particularly for families making regular trips and weekend travelers covering long distances across Montana.

Diesel rises over short- and long-term comparisons

Diesel increased 5.8 cents from the previous day and 11.5 cents from a week earlier. Compared with longer-term benchmarks, the Great Falls metro diesel average was up 83.2 cents from one month ago and $1.448 from one year ago.

That movement can matter for freight carriers, delivery drivers, farmers, contractors, construction crews and service businesses that rely on diesel vehicles or equipment. Higher diesel prices can add to the cost of transporting goods, operating work vehicles and completing jobs that require heavy equipment. These are likely cost pressures, not documented claims that a particular Great Falls business has changed its prices.

Metro averages do not equal every local pump

AAA’s figures are metro averages, not a guarantee that every station in Great Falls is charging the same amount. Prices can vary by location, payment method, competition, timing and other station-specific factors.

Love’s Travel Stop operates a Great Falls location at 3219 Airport Drive. Its station page should not be treated as confirmation of an August 1 price without a clearly dated snapshot. Drivers planning weekend travel should compare nearby stations shortly before filling up rather than relying only on the metro average.

Regular gas is showing slight short-term easing, while diesel is rising and remains above $5.12 per gallon in the Great Falls metro. What are you seeing locally? Share the highest and lowest pump prices you are finding around Great Falls.

Sources

• AAA Fuel Prices — Montana metro table, including Great Falls
• Love's Travel Stop #789 — Great Falls location page