using refrigerator without temp control!

Hey guys I just finished up a 10 gal batch of pale ale, and my landlord said that I could use his outdoor fridge for fermentation. I cleaned it out and took the shelves out. I also unplugged it to heat it up (it was 34F degrees in there). After the brew sesh, I put both fermeters in the fridge and set the fridge temperature almost to it's lowest setting. A couple of hours have passed, and I just went and checked the temp. It's about 58 degrees in the refrigerator. I have done some reading up on this and feel stupid about not having a temperature control device. Is there anyway that fermentation can be done in this fridge? It's getting too warm out here in Cali during the day, and I don't want estery beer! I'm using Wyeast 1056 in one fermenter, and 1084 in the other. Any help would be appreciated! Thanks

Deleted. Didn't realize you were using it to ferment.

a fridge works great for fermentation. however you'll need to override the thermostat with an external temp controller. Johnson analog is probably the least expensive $60-$70.

I used to do it without a temp controller but it requires constant monitoring. I found that is was very difficult to keep the temp up without turning the frig off most of the time. Turning the dial to 1 for an hour or two kept it around where I wanted it but it was hard to avoid large temp swings.

forget the fridge unless you can do it right. Get a large Rubbermaid tub fill it it with cold tap water put your carboys in it. monitor the temp of the water if it starts to get warm put some frozen water bottles in it. maybe this will steer you in the right directiojn.
https://www.homebrewtalk.com/f14/water-bath-fermentation-112928/

mine works great with out one, but it took some time to find the sweet spot. having temp control is ur best bet.

....EDIT: I was gonna tell you how to sort of wing it......on 2nd thought...

Temp controller $70.

Peace of mind - PRICELESS.