Well, it sure ain't natural.
2 seconds sound clip from the Bride of the Monster (1955) movie soundboard.
You can hear this line at 00:01:31.000 in the Blu-ray version of the movie.
Quote context
[...]
- This is the worst storm yet.
- Yeah, almost every night for the last three months.
- Well, it sure ain't natural.
- I'm getting away from this lightning while I still can.
- Ah, you'll be soaked to the bone before you get ten yards.
- Well I'd better be soaked than barbecued.
- It's impossible to make it to the main road. Maybe we can make it to the old Willows place.
- Do you actually believe in them monsters?
- But the newspaper story said...
[...]