Lemont Gas Prices - Find the Lowest Gas Prices in Lemont, IL

Search for the lowest gasoline prices in Lemont, IL. Find local Lemont gas prices and Lemont gas stations with the best prices to fill up at the pump today

National and Illinois Gas Price Averages

National Avg.IL Reg. Avg.IL Plus Avg.IL Prem. Avg.IL Diesel Avg.
$3.177
05/20/2025
$3.408
05/20/2025
$3.974
05/20/2025
$4.436
05/20/2025
$3.530
05/20/2025

Today's lowest gas prices in Illinois and around Lemont

StationRegularPlusPremiumDiesel
Marathon
34238 N US-45, Grayslake, IL
$2.88
05/20/2025
$3.38
05/20/2025
$3.88
05/20/2025
05/20/2025
Casey's
391 S. Hunt Club Rd., Gurnee, IL
$2.83
05/20/2025
05/20/2025
$3.63
05/20/2025
$3.49
05/20/2025

Find all gas prices in and around Lemont, IL.

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