This is an activity that my students and I do to start class every day. No lesson on weather is needed when it is done every day!
I have all of these weather cards posted in one of my classroom windows. When the question "Quel temps fait-il?" is asked at the beginning of every class, the designated weather person takes whichever cards the class says and sticks them to the wall.
For the first year students, simply start each class by pointing to the words (with accompanying pictures) as you read them aloud and have them say "oui" or "non". Eventually, they will start saying the words on their own. Finally, they will be able to do the activity by themselves while you can take roll, redirect off-task students, answer an urgent email, etc.
By the end of the first semester, your students will be very strong in telling the weather with accuracy in both content and pronunciation.