Westmont Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.65 | $5.26 | $5.77 | $5.57 | - |
| Month Ago Avg. | $4.63 | $5.26 | $5.75 | $5.57 | - |
Highest Recorded Average Gas Price In Westmont Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.57 | 06/15/26 |
| Regular | $4.65 | 06/21/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Westmont
Mariano’s Fuel in Westmont (150 W 63rd St)
150 W 63rd St, Westmont, Illinois,
$4.49
Jul 19, 2026
0¢ Cashback
Thorntons in Westmont (300 W 63rd St)
300 W 63rd St, Westmont, Illinois,
$4.53
Jul 19, 2026
0¢ Cashback
Shell in Westmont (4 East Ogden Ave)
4 E Ogden Ave, Westmont, Illinois,
$4.57
Jul 19, 2026
3¢ Cashback
Speedway in Westmont (6241 S Cass Ave)
6241 S Cass Ave, Westmont, Illinois,
$4.59
Jul 19, 2026
0¢ Cashback
Marathon in Westmont (16 W Naperville Rd)
16 W Naperville Rd, Westmont, Illinois,
$4.64
Jul 19, 2026
0¢ Cashback
Mobil in Westmont (260 N Cass Ave)
260 N Cass Ave, Westmont, Illinois,
$4.69
Jul 19, 2026
0¢ Cashback
BP in Westmont (6300 S Cass Ave)
6300 S Cass Ave, Westmont, Illinois,
$4.89
Jul 19, 2026
0¢ Cashback
Shell in Westmont (2 E 63rd St)
2 E 63rd St, Westmont, Illinois,
$5.15
Jul 19, 2026
3¢ Cashback
CITGO in Westmont (27 E Ogden Ave)
27 E Ogden Ave, Westmont, Illinois,
$5.28
Jul 19, 2026
0¢ Cashback
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Gas Data Methodology
The fuel prices published in this guide are based on the results of research completed by Way.com’s data team. Using a mix of external and internal data, we analyzed millions of prices across U.S. ZIP codes and globally.