Free images results:

Rainy pictures, stock photos and images


Sunset Royalty Free Stock Photos
Author: Nitzu
Mushroom Royalty Free Stock Images
Author: Ittie8
Cloudy day Stock Photos
Author: Ruxa
Solitaire Stock Photo
Author: Bx3t

Also, here are some commercial RF-licensed images that match your search criteria:  
Rainy Stock Image
Author: Gradts