Can weather conditions affect WiFi strength and connectivity?

I ask as yesterday some of my devices, all the same brand, lost connection with our home WiFi. Up until then they had been working just fine for the best part of six months. Tried as I might to reconnect them, the devices were not having it. Meanwhile everything else was working just fine. I rebooted our Wifi, no difference. All other devices reconnected, the rogue ones refused to.

Yesterday was very hot, humid as well. As we went into the evening the weather started to cool down quite noticeably and the humidity appeared to drop. Around sunset I found it more comfortable outside than in. By the time that I went to bed, two of the devices had reconnected. By this morning the third and final one had joined its companions.

I’m baffled. There might be another reason, but for now the weather conditions are all that I can think of?