Costco Gas Prices in Montclair, California
Montclair · Warehouse #686
9404 CENTRAL AVE, Montclair, California 91763-2421
Prices updated: July 22, 2026 at 5:00 AM
Regular
$5.059
PRICE PER GALLON
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Premium
$5.559
PRICE PER GALLON
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Current gas prices at Costco #686
This Costco gas station is located at 9404 CENTRAL AVE in Montclair, California. The latest reported fuel prices are regular at $5.059/gal, premium at $5.559/gal. Prices were last updated on July 22, 2026 at 5:00 AM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$5.059+0.360 (7.7%)
Premium
$5.559+0.460 (9.0%)
DateRegPrem
Jul 22, 5:00 AM$5.059$5.559
Jul 21, 4:00 PM$4.999$5.499
Jul 20, 10:00 PM$4.999$5.399
Jul 18, 3:00 PM$4.899$5.299
Jul 17, 10:00 PM$4.759$5.159
Jul 14, 9:00 PM$4.699$5.159
Jul 13, 6:00 PM$4.739$5.199
Jul 12, 5:00 PM$4.799$5.199
Jul 10, 5:00 PM$4.859$5.199
Jul 8, 9:00 PM$4.859$5.159
Jul 8, 4:00 PM$4.759$5.079
Jul 7, 5:00 PM$4.699$5.079
Jul 6, 4:00 PM$4.599$4.999
Jul 5, 6:00 PM$4.699$4.999
Jul 4, 8:00 PM$4.599$4.979
Jul 1, 3:00 PM$4.679$4.979
Jun 29, 5:00 PM$4.699$4.979
Jun 25, 4:00 PM$4.699$5.099