Costco Gas PriceNow

Costco Montclair gas prices

This station's regular prices have climbed about $0.360 per gallon over the past month, from $4.699 to $5.059. Premium is up $0.460 over the same stretch, now at $5.559.

Today's prices

Regular
$5.059
Premium
$5.559

Per gallon, USD · updated July 22, 2026

Updated today · refreshed daily

30-day price history

Regular$5.059Premium$5.559
4.604.805.005.205.405.60Jun 23Jun 30Jul 8Jul 15Jul 22$5.559$5.059
Posted prices at Costco Montclair, past 30 days ($/gal).
View price history as a table
DateRegularPremium
July 22, 2026$5.059$5.559
July 21, 2026$4.999$5.499
July 20, 2026$4.999$5.399
July 19, 2026$4.999$5.399
July 18, 2026$4.899$5.299
July 17, 2026$4.759$5.159
July 16, 2026$4.759$5.159
July 15, 2026$4.759$5.159
July 14, 2026$4.699$5.159
July 13, 2026$4.739$5.199
July 12, 2026$4.799$5.199
July 11, 2026$4.799$5.199
July 10, 2026$4.859$5.199
July 9, 2026$4.859$5.199
July 8, 2026$4.759$5.079
July 7, 2026$4.699$5.079
July 6, 2026$4.599$4.999
July 5, 2026$4.699$4.999
July 4, 2026$4.599$4.979
July 3, 2026$4.599$4.979
July 2, 2026$4.599$4.979
July 1, 2026$4.679$4.979
June 30, 2026$4.679$4.979
June 29, 2026$4.699$4.979
June 28, 2026$4.699$4.979
June 27, 2026$4.699$4.979
June 26, 2026$4.699$4.979
June 25, 2026$4.699$5.099
June 24, 2026$4.699$5.099
June 23, 2026$4.699$5.099

Address

9404 Central Ave
Montclair, California 91763-2421

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Gas station hours

Mon – Fri
5:30 AM – 10:00 PM
Saturday
6:00 AM – 8:30 PM
Sunday
6:00 AM – 7:30 PM

Warehouse hours

Mon – Fri
10:00 AM – 8:30 PM
Saturday
9:30 AM – 7:00 PM
Sunday
10:00 AM – 6:00 PM

Location

9404 Central Ave, Montclair 91763-2421

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