Product review (5 stars): Easy-to-read AcuRite thermometer
This unit does the trick without breaking the bank at $20.79.

The AcuRite 00611A3 Wireless Indoor/Outdoor Thermometer and Humidity Sensor is large enough to see from 10 feet. Although it is not backlit, because of its size I rarely need to turn on a light to see it. The sensor hangs on my front porch under the eve. Inside, about 5 feet away, the base unit hangs from a nail on the wall in the corner behind the door, next to the coat rack. It seems to register the correct temperature.

We had another similar AcuRite model with a much darker and smaller faceplate. The sensor on that one stopped working after 4-5 years. The cost was also around $20 at the time. Amazon offers a replacement sensor for about $12, but I figured I'd just replace the entire unit. I'm glad I did because this one is much easier to read.