OP how old is your car battery? Yours may be nearing the end.

I park outside, and hadn't driven since last Thursday morning. Battery was fine. Consider taking yours to get inspect for how much life it has left.

Do you park on the street or in a garage? We’re in a garage so even when it’s single digits outside, the garage is at least 40 degrees.

If you’ve been home the last few days and haven’t driven your car, go check the battery now so you aren’t surprised by a dead battery when you try to leave for work or school drop off tomorrow.

Last time I drove my car was Thursday evening. We have either been at home or driven DH’s car the last two days. Today I was about to go run errands and my battery was completely dead from the cold.