PORTLAND, Ore. (KOIN) — With weather models pointing to triple-digit temperatures starting Saturday through Monday, many places are starting to cancel or update operating hours.

Below is a running list of cancellations or adjusted operating hours amid the expected heatwave hitting the region this weekend, and check back for the latest updates:

5 p.m. – Oregon Zoo keeping animals cool through heatwave

An Oregon Zoo spokesperson tells KOIN 6 News officials are monitoring and may close early at some point during the extreme heat forecasted this weekend; however, that has yet to be determined, and zoo officials will alert ticket holders in advance.

As for the animals, zookeepers are preparing in advance for this weekend’s triple-digit heat, including making sure all creatures — animals and humans alike — have plenty of water and access to cool spaces. Staff may also end up using ice piles, fans, hoses and sprinklers, and frozen food items for the animals.

4:45 p.m. – Hours reduced at Tower Mall COVID-19 vaccine site amid extreme heat

Tower Mall’s vaccination site will close early on Saturday and Monday due to the extreme temperatures in the forecast. However, the Vancouver site will be open for its normal hours on Friday and Tuesday, and the Greater Vancouver Chamber of Commerce will give out $50 gift cards to those who are vaccinated at the site on Friday. Saturday’s hours will be from 8:30 a.m. to 12:30 p.m., while Monday’s hours will be 8:30 a.m. to noon.

4 p.m. – Clackamas Town Center offering place to cool down, vaccinations and a chance to win gift cards

Folks heading to the Clackamas Town Center on Friday to escape the heat can get a vaccine dose and a chance to win a $100 gift card, according to Clackamas County officials. One hundred $100 gift cards will be given to residents who get their COVID-19 vaccine at the Clackamas Town Center starting from 2 p.m. until they’re gone. The mall clinic opens up at 11 a.m. and closes at 7 p.m. on Friday and Saturday, according to county officials.

3 p.m. – Lebanon Community Schools’ Summer School Program cancels Monday

The Summer School Program for the Lebanon Community Schools District will be canceled on Monday, June 28 for all grades, including academic and enrichment activities, amid the extreme heat in the forecast. However, the Boys and Girls Club in Lebanon will remain open, and the Lebanon soup kitchen will have a cooling station open Saturday and Sunday from 3 p.m. to 8 p.m.

2:30 p.m. – Portland Opera canceling Saturday, Sunday performances

The Portland Opera announced Thursday it was canceling the Saturday and Sunday performances of Frida due to the excessive heat warnings. Those who have tickets to the performances have the option of attending an added performance on Friday. There are also digital passes to stream the performance online. Click here for more information.

2 p.m. – Hillsboro Hops’ Sunday home game start time changes

Officials with the Hillsboro Hops announced the start time for the team’s home game against Spokane on Sunday, June 27, has been changed to 11:05 a.m. It was originally slated to start at 1:05 p.m.; however, the first pitch was moved up due to the Excessive Heat Warning that will be in effect for the Portland metro area.

1:30 p.m. – Metro Waste facilities closing due to temps

Metro officials announced on Thursday that household hazardous waste facilities and transfer stations will close early on Saturday, Sunday and Monday due to extreme heat conditions in the forecast.

The facilities will have normal hours on Friday, June 25, but on Saturday, they will close by 2 p.m. On Sunday and Monday, they will close by noon.

Click here for more information.

10:30 a.m. – Hawthorne Bridge closure postponed

Multnomah County officials announced the planned closure of the Hawthorne Bridge this weekend for maintenance work has been pushed due to the forecast; the exact dates of the rescheduled closure were not immediately released.

10 a.m. – Virginia Garcia Memorial Foundation cancel vaccination clinics this weekend

Officials with the Virginia Garcia Memorial Foundation announced the cancellation of COVID-19 vaccination events on Saturday, June 25 and Sunday, June 26, in Washington County ahead of the extreme heat in the forecast. However, the mobile site will still be open Thursday and Friday, as well as next week starting on Wednesday through Friday from 4 p.m. to 8 p.m.

9:30 a.m. – Water safety urged by state officials

Temperatures will be hot this weekend, and officials with the Oregon State Marine Board and Oregon Office of Emergency Management are warning members of the public to be safe in the water as they expect an increase in water-based recreation activities. This includes wearing life jackets, boating sober, carry safety gear and more. Click here for more water safety tips.

9 a.m. – Garbage pickup will be early during heatwave

The City of Portland is warning residents that garbage, recycling and compost bin pickup will start at 5 a.m. on Friday, June 25 and Monday, June 28, amid extreme heat conditions in the forecast in an effort to reduce exposing drivers to extreme temps and potential health risks.

Residents are asked to set out their containers the night before to avoid missing a pickup.