Another useful command line service I use almost daily (using a rather wide terminal):<p><pre><code>  $ curl wttr.in&#x2F;94035
</code></pre>
My most frequently used option for cal on GNU&#x2F;Linux is &quot;-3&quot;. It shows the current, previous, and next month with the current day highlighted, which are usually all the information I need.<p><pre><code>  $ cal -3

         April 2016             May 2016              June 2016  
    Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa

                    1  2   1  2  3  4  5  6  7            1  2  3  4

     3  4  5  6  7  8  9   8  9 10 11 12 13 14   5  6  7  8  9 10 11

    10 11 12 13 14 15 16  15 16 17 18 19 20 21  12 13 14 15 16 17 18

    17 18 19 20 21 22 23  22 23 24 25 26 27 28  19 20 21 22 23 24 25

    24 25 26 27 28 29 30  29 30 31              26 27 28 29 30</code></pre>