Yes, but the next weekends should be no problem.
Every thing over 0*C should be possible even with a simple equipment.
Just wear your clothing of the day in the sleeping bag if it is lighter than 1,5 kg and put a folded blanket unter your sleeping bag, if you don't have an insolation mat.
(But put off the water proofs when you go in the sleeping bag.)
If you own equipment, just take it and try it out!
See, that you let a way back open, so you can run away, if you should get any problems.
If you aren't to far away from your car or from home you can go home if you have a torch and spare batteries with you.
If it's to cold, you can also sit the night next to the fire and go home and sleep at home in the morning.
I recommend to try it out as soon as possible. Next to the fire you can sleep in a summer sleeping bag till 0*C.
If its uncomfortable take a blanket more next time.