Uses ipinfo to get your ZIP code, which is then passed to the Wunderground API. (You'll need a Wunderground API key - don't worry, it's free.)

Originally I wrote this in Python, but the overhead of loading Python and the imported libraries made it too slow to use on each prompt. So I re-wrote in Go, which is a compiled language, and it starts up much faster. With Go 1.7 and some compile flags, binary is a slim 4 MB.

1. Build: go build -ldflags="-s -w" wp.go

2. Make it executable: chmod +x wp

3. copy wp to a directory in your PATH.

-k is the only required flag:

wp -k [YOUR_WUNDERGROUND_API_KEY]

Throw it in your prompt:

export PS1="$(wp -m -t -k [key]) \u@\h\w $ "

  -d  Turn on debug mode
  -f  Force lookup (don't use cached data)
  -k string
      API key for api.wunderground.com
  -m  Include the phase of the moon (at night)
  -t  Show the temperature in Fahrenheit
  -w int
      Number of minutes to wait before checking (default 10)
  -z string
      Force zip code (skip ipinfo.io lookup)

You can also type wp -h to see this list.

(C) Josh Delman, 2016