Taking newborn sibling outside?

Daphne.

Hi mamas! Just had my July baby on Saturday YAY!! But I’m already nervous about what to expect this weekend when his 21 month old sister is home all day (she’s in daycare full time Monday - Friday and staying in during my maternity leave) ... but I can’t keep her cooped up on the weekends! How do you take out a newborn in July heat?! Onesie only with a clip on stroller fan and complete shade? She was born in October so by the time it was hot, she was older!

Thanks all😬😬