Just as characters affect one another in your writing, they are also affected by the weather around them. In fact, just like people do with the setting, think of weather as a character. Keep in mind that weather and climate are two different things and will affect characters in different ways. Climate tends to affect lifestyle, social structure, and culture, whereas weather affects daily choices. There are myriad ways weather can affect your characters. If you can think of more to add to my list, I’d love to hear them!
This can sometimes be overdone, but think of the symbolism of some weather forms. Is your character confused or unsure of something? You could make it foggy outside. Is the plot building up to a big climactic scene? Maybe a storm is approaching as well.
This could apply both to the mood of the piece or the character’s mood. Weather could either complement or contradict how the character is feeling, e.g., if they’re upset the weather could either be stormy or ironically sunny. Depending on which it is, it could deepen the character’s mood. After all, long periods of darkness may result in moodiness or depression. The build up to a storm can increase irrational behavior and sensitivity to pain.
Weather can affect health in subtle or extreme ways. A walk in the rain could lead to anything from a minor cold to pneumonia. Take hypothermia, for example: you don’t need to be in freezing conditions to develop that condition. “An unfit person in wet clothes can be hypothermic in temperatures as mild as 15oC (60oF). A hypothermia victim is often confused, and can be the last to be aware of their state,” writes expert Candida Spillard.
Even a small turn or change in weather can lead to a turn or change in plot or characters’ movements. Weather is a huge factor in decisions people make throughout the day. For example, if it’s raining, fewer people will be outside, which could be a way for there to be fewer witnesses in, say, a plot involving murder.
Do you have more examples to add to this list? Let me know in the comments section! And remember: depending on where your character lives, the climate (and weather) will vary based on season and location. Do your research!