It could get colder or it might miss your garden, but to be safe, I will be putting row cover over any veggies/fruits I still want to protect and harvest.
The weather people have been changing the forecast everyday and sometimes several times a day lately. They think it will be above just above freezing but the wind chill will drive down the temperature to feel below freezing and I’m not willing to take that chance after spending all these months growing veggies. If it does go down to freezing, my garden will be protected. I think it will be a new record low if it does hit 32°F as the previous record for our first freeze was in October, but never in September. What a weird year-record heat one day and threat of a freeze the next day!
Medium or heavy weight row cover will give your veggies protection to several degrees below freezing. The problem is, if you don’t protect them, and we get an Indian summer where it turns warm again for quite a while, then the crops could have the time they need to finish ripening before we get more cold weather.
Remember to remove the protection in the morning so the plants can get warmth and light from the sun. I have lost many crops by not protecting them during these early freezes. I will be prepared this time!