What is the tone of October by Robert Frost ?

Tone is the attitude of the writer/narrator about a particular subject. The tone is generally conveyed through the word choice of the writer. In this poem, the tone isn't the same throughout. Frost shifts his initial tone. That initial tone is fairly neutral and observational. He provides readers with facts about fall and October. The leaves have changed color, the wind will knock them down, and birds will move on.

O hushed October morning mild,
Thy leaves have ripened to the fall;
Tomorrow’s wind, if it be wild,
Should waste them all.

The tone begins to shift around line 8, and it continues to build to the end of the poem. This new tone is a more intense and pleading tone. The narrator is imploring nature to slow down its relentless progress. He wants the leaves to hang on to the trees a bit longer. That pleading tone gets more and more intense near the end of the poem. This can be seen when he repeats his commands and punctuates with an exclamation point.

Retard the sun with gentle mist;
Enchant the land with amethyst.
Slow, slow!