You keep on walking through the forest, being as miserable as you can be, your breath laboring through your lungs unused to this harsh exercice, your sweat coming out of your body due to the intense heat, drenching your clothes, and forcing you to constantly concentrate on cantrip magics to dry yourself off and clean yourself, but you still smell like a horse that mated with a pile of manure, clearly this can't get any worse.
And then it starts raining.
Not just a drizzle, but a full blown tropical rain, pouring everywhere, drenching you to a point you have never been drenched before. Night is coming, it's as good a time as any to set up camp, you quickly unfold the camp and sight in relief as you get in the warm semi-extradimensional space, with dry beds and comfortable benches. You quickly change clothes and dry off your old ones off, before using cantrips to summon water and washing yourselves. Maybe learning a few spells to protect yourself from the rain tommorow might be a good idea?
I'll give you a couple of opportunities to decide what spells you should learn tommorow and plan your next actions, then proceed to the following day. For those who wonder, I was a city kid who did woodland expeditions when I was young, I fully well know the agony of those things ^^.
NEW SPELL
[spoiler]Protection from rain
School: Abjuration
Level: 0
Classes: all (yeah, even that one)
Duration: 1 hour level
Range: Touch
Target: 1 target.
This spell prevents your from being drenched by trickling water, you will still get drenched by immersion in water, or any volume of water falling on you that is more than 1 gallon per round. It is mostly a cosmetic spell. You still get the penalties for fighting in the rain (penalty to ranged attacks and concentration) you're just not wet.[/spoiler]