Many of them become really confused and sometimes upset on days when we can't go to the playground due to weather (i.e. too cold, rain, snow, etc.). The most confusing thing is when it is hot in our classroom, sunny outside, but below zero outside. We have had several students who ask us to change the weather. One kids would say "Come on please. Make it sunny." Haha. So, we use this visual every day!
We start by asking the question "Do we have playground today?" Our answer choices are "yes" "no" and "maybe" (we use this on borderline cold days or cloudy days when there is a chance of rain).
Then we address the "Why?" question. Is it because of the weather? Are we going on a field trip? Do have too much work to get done?
Here are some other activities we do daily to talk about weather. Here we identify the weather conditions outside.
Here we identify the temperature and season. We look up the temperature on our iPad. I usually choose a student each day to be "in charge" of the weather.