C. F. Keil and Franz Delitzsch on Proverbs 26:1

Pro 26:1

There now follows a group of eleven proverbs of the fool; only the first of the group has after it a proverb of different contents, but of similar form:

As snow in summer, and rain in harvest;

So honour befitteth not a fool.

If there is snow in high summer (קיץ, to be glowing hot), it is contrary to nature; and if there is rain in harvest, it is (according to the alternations of the weather in Palestine) contrary to what is usually the case, and is a hindrance to the ingathering of the fruits of the field. Even so a fool and respect, or a place of honour, are incongruous things; honour will only injure him (as according to Pro 19:10, luxury); he will make unjust use of it, and draw false conclusions from it; it will strengthen him in his folly, and only increase it. נאוה (= נאוי) is the adj. to the Pil. נאוה, Psa 93:5 (plur. נאווּ); נאוה, Pro 19:10, and נאוה, Pro 17:7, are also masc. and fem. of the adj., according to which, that which is said under Pro 19:10 is to be corrected. Symmachus and Theodotion have translated οὐκ ἔπρεψεν, and have therefore read נאוה. The root word is נאה (as שׁחה to שׁחוה) = נוה, to aim at something (vid., Hupfeld under Psa 23:2).