Banjos are pretty hardy compared to guitars and mandolins. Just keep the banjo properly humidified, ideally between 45 and 55 percent humidity. Keep it out of direct bright sunlight, and don't subject it to sudden precipitous temperature changes.

All these things can be easily accomplished with a good case, a case humidifier, and a simple room humidifier gauge.

All of that is good, solid advice. I have nothing to add.
But as a sidebar, I can’t help wonder about those pre-war (WW II) Gibsons that are in such high demand. The NC heat & humidity would routinely split the skin head on Earl’s banjo, yet he kept picking, show after show.
Maybe banjos are more rugged than many think.
Or maybe humidity is just one more thing to be afraid of, like butter, air, water and “those people.”

I live in West Texas and summertime the temps can be 100 plus for days at a time. I've been to festivals/jams in that hot temp, have gone on stage for a gig when it was 110. The hot temp never hurt my Stelling. I did try to keep it out of direct sunlight and put it in the
motorhme when I wasn't gigging or jamming.

In other words, I don't think the hot temps will hurt your banjo at all.

I have found that taking a banjo from an air conditioned place to the hot sunshine may make it out of tune just because of the shock of cold to hot, but again, that never harmed my banjo.

yeah we have had 100 plus for a few days now,,, we ain't use to that kinda heat down here..... but you'll be fine just keep a fan on her with air stirring and case open ,,let her breath ,, she be ok ,,,,,,,

I guess in some ways we're lucky (?) ... we don't get nearly  the heat/humidity that others do, especially for extended periods, but I go with "if it's okay for me, it's okay for my banjo."

Fwiw, we've had a cool, wet spring ... this past week the humidity  gauge in the kitchen has been about 45-48% .... about 10 percentage points above where it normally registers summer and winter. We have room dehumidifier in the basement .... it's been running constantly this past little bit although typically it rarely runs in the summer and intermittently in the winter.

... And just in case you're wondering ... over 85 F. is TOO DANGED* HOT!!   

* translation: DANGED =  !&^%#%@.

I live in an older, leaky house and even before the ac died I struggled to keep the place comfortable in the summers. It hit 105° two days ago and my inside temps were 90-91 for most of the afternoon-evening. My dog hates it, cat hates it, I’d prefer much colder but I've always dealt with heat pretty well. I've never had this banjo in any kind of extremes for more than a few seconds moving between car and building though. It always gets weird sounding if I step outside when its hot but I’m happily learning that banjos are kind of like old cars: temperamental and wanting constant tinkering but built to last

Banjo are pretty rugged when compared to Guitars, Violins and Mandolins.

Had Pre-WWII banjos way before I ever had AC. Never a problem.

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Originally posted by mikeb210

I live in an older, leaky house and even before the ac died I struggled to keep the place comfortable in the summers. It hit 105° two days ago and my inside temps were 90-91 for most of the afternoon-evening. My dog hates it, cat hates it, I’d prefer much colder but I've always dealt with heat pretty well. I've never had this banjo in any kind of extremes for more than a few seconds moving between car and building though. It always gets weird sounding if I step outside when its hot but I’m happily learning that banjos are kind of like old cars: temperamental and wanting constant tinkering but built to last

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I think it is pretty normal for a banjo to "detune" itself when it goes from cold a/c to hot sun.   A friend had that happen right before he went on stage and had to hastily retune the banjo as they were being introduced.    He didn't leave the a/c and let the banjo acclimate before heading on stage.   He learned a lesson that day.

I don't think there's any danger in "house" conditions of temp/humidity. Now the back of a station wagon, that's not so good due to the sun streaming into the "glass house". Many a Martin guitar has the glue under the bridge let go in those OVEN conditions.

I did see a nice old Gibson Granada that had spent years in a New England attic; the resonator finish was all crackled like a fried marble, if you remember what they looked like.

quote:

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Originally posted by The Old Timer

I don't think there's any danger in "house" conditions of temp/humidity. Now the back of a station wagon, that's not so good due to the sun streaming into the "glass house". Many a Martin guitar has the glue under the bridge let go in those OVEN conditions.

I did see a nice old Gibson Granada that had spent years in a New England attic; the resonator finish was all crackled like a fried marble, if you remember what they looked like.

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yeah today they call that patina