At what temperature do you keep baby inside?

It’s 90 degrees here today and I’d like to take my 2 month old for a walk this afternoon but I worry that might be too hot.

I asked my pediatrician earlier this summer what was considered too hot and she didn’t really give me a straight answer so I’m wondering what other moms’ rules are.

***EDIT***

Just want to add that the only reason I was considering an afternoon walk is because the org I work for is holding an event at 4:30 just a short walk from my home so I was wanting to bring her to give my coworkers a chance to meet my baby. It’s a 20 minute walk each way and the event would be like a half hour. I decided against taking her. My gut is just telling me it’s too hot for her.

Thanks all for your input!