Hotels in Montclair

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Check prices for these dates

Tonight
Dec 28 - Dec 29
Tomorrow
Dec 29 - Dec 30
Next weekend
Jan 2 - Jan 4
In two weeks
Jan 9 - Jan 11

Where to stay in Montclair?

Exterior
Ontario Inn & Suites
Ontario Inn & Suites
2.0 star property
8.0 out of 10, Very Good, (1002)
  • cleanliness
    A short drive to Ontario's convention center with free parking and Wi-Fi access.
The price is $97
$109 total
includes taxes & fees
Jan 5 - Jan 6, 2026
Ontario Inn & Suites
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
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When is the best time to visit Montclair?

Our prices for hotels in Montclair are cheapest in July
Price trends for hotels in Montclair
Pricing is based on two traveler single night rates
View properties in December
Currently viewing crowd sizes and weather for December.
Typical weather for Montclair
December
Low crowds
High 18°C / low 7°C. Sunny most days.
View properties in December
18°
weather_sun
December, Low crowds, average high temperature 18 degrees Celsius, average low temperature 7 degrees Celsius. Sunny most days.
7°
18°
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January, Moderate crowds, average high temperature 18 degrees Celsius, average low temperature 8 degrees Celsius. Sunny most days.
8°
19°
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February, Moderate crowds, average high temperature 19 degrees Celsius, average low temperature 7 degrees Celsius. Sunny most days.
7°
20°
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March, High crowds, average high temperature 20 degrees Celsius, average low temperature 9 degrees Celsius. Sunny most days.
9°
23°
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April, Low crowds, average high temperature 23 degrees Celsius, average low temperature 11 degrees Celsius. Sunny most days.
11°
25°
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May, Low crowds, average high temperature 25 degrees Celsius, average low temperature 13 degrees Celsius. Sunny most days.
13°
30°
weather_sun
June, High crowds, average high temperature 30 degrees Celsius, average low temperature 16 degrees Celsius. Sunny most days.
16°
33°
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July, High crowds, average high temperature 33 degrees Celsius, average low temperature 20 degrees Celsius. Sunny most days.
20°
34°
weather_sun
August, Moderate crowds, average high temperature 34 degrees Celsius, average low temperature 20 degrees Celsius. Sunny most days.
20°
32°
weather_sun
September, Moderate crowds, average high temperature 32 degrees Celsius, average low temperature 19 degrees Celsius. Sunny most days.
19°
28°
weather_sun
October, High crowds, average high temperature 28 degrees Celsius, average low temperature 15 degrees Celsius. Sunny most days.
15°
22°
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November, Low crowds, average high temperature 22 degrees Celsius, average low temperature 11 degrees Celsius. Sunny most days.
11°
Monthly weather averages (˚C)

Learn more about Montclair

The region around Montclair is home to attractions such as Fairplex and In-N-Out Burger Pomona Dragstrip.

See all hotels in Montclair
Upland, California – March 3, 2023: aerial drone photo toward San Antonio Heights area with snowed mountain background

Check out reviews of Montclair hotels guests love

Holiday Inn Diamond Bar - Pomona by IHG

Holiday Inn Diamond Bar - Pomona by IHG

10/10 Excellent
"At check-in, your staff is just completely amazing. I can’t say enough good things about them all."
Shelley 2-night trip
Posted 13 hours ago
Holiday Inn Diamond Bar - Pomona by IHG

Frequently asked questions

What hotels do travelers like in Montclair?
Ontario Inn & Suites is an accommodation that is popular with guests.
Can I book a refundable hotel in Montclair?
If you want the flexibility to change your plans to Montclair, most hotels provide refundable* rates you can book. You can see these properties by searching our site and using the "fully refundable" filter to narrow down the results.
Where can I stay in Montclair if I want a vacation rental instead of a hotel?
If you want to find a good alternative to a hotel, review our selection of 5 vacation homes.
What will the weather in Montclair be like during my vacation?
The warmest months in Montclair are usually August and July with an average temp of 77°F. February and December are the chilliest months when the average temp is 54°F. The rainiest months are December and January.
Why should I book my Montclair accommodation with Hotels.com?
There are plenty of reasons to book your Montclair travel with us: our free cancellations on selected hotels gives you the flexibility you're looking for, and with One Key™, our rewards program, you will be able to earn and use OneKeyCash™* on all eligible bookings such as hotels, car rentals, flights, vacation rentals and more on Hotels.com, Expedia and Vrbo.