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Wisconsin Gas Prices Hit $4.34 per Gallon

By Markets Desk · 2026-09-17 · 1 min read
A red fuel pump nozzle rests on gray concrete beside a small puddle of dark liquid.
Illustration: Tradingbird

Statewide gasoline costs surged over 20 cents overnight to reach $4.34, driven by global crude oil volatility and regional supply constraints.

The average price of regular gasoline in Wisconsin reached $4.34 per gallon on Thursday. This represents an overnight increase of more than 20 cents from Wednesday’s level of $4.11. The state saw a weekly jump of 33 cents from the $4.01 average recorded a week prior.

Drivers in the Milwaukee-Waukesha region experienced a sharper spike. Local prices climbed from $4.04 to $4.29 in a single day. This area is now paying 35 cents more per gallon than it did one week ago.

Global Factors Drive Crude Costs

GN auto markets/energy: crude oil prices reports link the surge to geopolitical tensions. Rising crude values stem from the ongoing conflict with Iran. Volatility in the Strait of Hormuz has pushed crude oil back toward the $100-per-barrel range.

These global factors translate directly into higher pump prices for consumers. The national trend mirrors the state-level increases observed in Wisconsin. Supply chain pressures continue to impact retail fuel costs.

Historical Comparisons Show Significant Rise

Current costs are dramatically higher than last year. The statewide average for this date last year was $2.89 per gallon. Today’s price of $4.34 marks a year-over-year increase of 50 percent.

Diesel fuel has also hit peak levels. The statewide average for diesel stands at $6.19 per gallon. This figure represents a new record high for the state according to AAA data.

Regional Price Disparities Persist

Price increases are not uniform across all regions. The Milwaukee-Waukesha area saw a larger jump than the state average. Local drivers face distinct pricing pressures compared to other parts of Wisconsin.

The overnight spike indicates immediate market reaction to news. Consumers are adjusting to higher costs within 24 hours. The trend suggests continued pressure on household budgets in the coming days.

Based on reporting by WTMJ, compiled by the Tradingbird desk.

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