Will swallows fly low after the rain?

Swallows fly low before it rains, because their food is mainly to catch small flying insects. When the weather turns bad and it is going to rain, the water vapor in the air increases, and the wings of insects become soft because of small drops of water. At this time, insects don't fly high, and swallows fly low to prey on insects.

If the weather begins to clear up after the rain and the water vapor gradually decreases, the swallows will begin to fly high. If it will be cloudy, even rainy, and the water vapor will not decrease, then the swallow may still fly low.