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Hotels in Observatory Hill

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Check prices for these dates

Tonight
Dec 15 - Dec 16
Tomorrow
Dec 16 - Dec 17
This weekend
Dec 19 - Dec 21
Next weekend
Dec 26 - Dec 28

Where to stay in Observatory Hill?

Terrace/patio
Hotel Commonwealth

Hotel Commonwealth

Hotel Commonwealth
4.5 star property
2.9 mi from Observatory Hill
9.4 out of 10, Exceptional, (1885)
$167 nightly
The price is $195
Jan 4 - Jan 5, 2026
Total with taxes and fees
Hotel Commonwealth
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 Cambridge?

Our prices for hotels in Cambridge are cheapest in January
Price trends for hotels in Cambridge
Pricing is based on two traveler single night rates
View properties in December
Currently viewing crowd sizes and weather for December.
Typical weather for Cambridge
December
Low crowds
High 40°F / low 30°F. Partly sunny.
View properties in December
40°
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December, Low crowds, average high temperature 40 degrees Fahrenheit, average low temperature 30 degrees Fahrenheit. Partly sunny.
30°
35°
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January, Low crowds, average high temperature 35 degrees Fahrenheit, average low temperature 23 degrees Fahrenheit. Snow likely.
23°
37°
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February, Low crowds, average high temperature 37 degrees Fahrenheit, average low temperature 23 degrees Fahrenheit. Snow likely.
23°
44°
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March, High crowds, average high temperature 44 degrees Fahrenheit, average low temperature 30 degrees Fahrenheit. Partly sunny.
30°
56°
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April, Moderate crowds, average high temperature 56 degrees Fahrenheit, average low temperature 40 degrees Fahrenheit. Sunny most days.
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67°
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May, High crowds, average high temperature 67 degrees Fahrenheit, average low temperature 50 degrees Fahrenheit. Sunny most days.
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75°
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June, Moderate crowds, average high temperature 75 degrees Fahrenheit, average low temperature 58 degrees Fahrenheit. Sunny most days.
58°
82°
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July, High crowds, average high temperature 82 degrees Fahrenheit, average low temperature 66 degrees Fahrenheit. Sunny most days.
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81°
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August, High crowds, average high temperature 81 degrees Fahrenheit, average low temperature 65 degrees Fahrenheit. Sunny most days.
65°
73°
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September, Low crowds, average high temperature 73 degrees Fahrenheit, average low temperature 58 degrees Fahrenheit. Sunny most days.
58°
62°
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October, Moderate crowds, average high temperature 62 degrees Fahrenheit, average low temperature 49 degrees Fahrenheit. Sunny most days.
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50°
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November, Moderate crowds, average high temperature 50 degrees Fahrenheit, average low temperature 37 degrees Fahrenheit. Partly sunny.
37°
Monthly weather averages (˚F)

Check out reviews of Observatory Hill hotels guests love

Omni Boston Hotel at the Seaport

Omni Boston Hotel at the Seaport

10/10 Excellent
"The best. "
JENY 2-night trip
Posted 6 hours ago
Omni Boston Hotel at the Seaport

Frequently asked questions

Is Observatory Hill expensive to stay in?
You can find great hotels from $125 in Observatory Hill to suit a range of budgets. To find the best low-cost hotel on Hotels.com that meets your needs, apply your search filters and then sort hotels by "Price: low to high".
How can I find discounted rates and deals for Observatory Hill hotels?
Discover great deals on hotels in Observatory Hill with Hotels.com. Sign up for free to unlock member only prices and start earning rewards. It's also a good idea to look at hotel prices mid-week or during the low season as you're likely to find off-peak deals. If you're up for a spontaneous trip, don't forget to check out our last-minute deals on Observatory Hill hotels.
Can I receive a refund if I cancel my Observatory Hill hotel booking?
The majority of hotels offer free cancellation, so you can receive a refund if you need to cancel your booking. Some Observatory Hill hotels require you to cancel more than 24 hours before check-in, so look at your booking beforehand. For extra peace of mind before you book, filter hotels by "Property cancellation options" and select "Fully refundable property".
Is it worth staying in Observatory Hill?
Basing yourself in Observatory Hill makes it easy to explore Cambridge, including the neighborhoods of Downtown Boston and Seaport District.
Find out more about Observatory Hill

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