Should I be worried receiving this message? I received it twice during my flight. I was about 150 feet in the air with a outside temperature of 49 degrees with wind ranging between 4-7mph. I am just weary of a motor failure as sometimes I fly over houses to take a picture of my city.

Hi there, thanks for reaching out. Regarding that, this message will pop up when flying aggressively or in a high wind condition, sometimes if the drone has mounted the accessories which exceed what it would bear will also lead to this result. So if it is possible, avoid these conditions. Should you have further question, please let us know. Thank you.

your battery may have been cold so it said so
i got the message but in 30+mph wiinds at 100m when it was cold
but i pre warm battery's by keeping in pockets

Good information on this thread. Thanks for sharing.

Happened to other people it's seems to be because your battery was cold.

Were you at a high elevation like in Colorado???  Thin air can cause this....I got it at 11,000 feet west of Denver.