Reduced Temperatures Ahead
I can remember the moment, on my first cross country road trip many years ago, when I first saw a highway sign that said "REDUCED SPEED AHEAD: 70", and I laughed.
That's how I felt when I saw the weather report today: "Temperatures dropping into the low 30s overnight."
(For readers not from the US: Around here in the northeast, highways usually have speed limits of 55 miles per hour near cities, and 65 miles per hour in rural areas. Speed limits above 65 are rare anywhere within 10 hour drive of here, and a "reduced speed ahead" sign usually means the speed limit is changing to 55 or lower. In the mountain west and great plains, though, there are a lot of highways with speed limits of 75 MPH and even some with 80, so 70 can be a "reduced" speed limit.)