Kind of timely- we hit over 100 degrees today in southern Nevada
, and I was out until noon. Not the best, I had a mild case of heat exhaustion.
I work nights, too. 4pm-midnight on 2 nights, 5pm-1am on 3. I have to cut back on my rides a lot, getting up early a couple days a week. I'm limited to maybe an hour, hour and a half, and cruise rather than hammer it. A nap before work sometimes helps make up for the early rise.
You don't want to be out much after 10 am. Keep an eye on weather reports, or get a weather app, there are occasional cooler days, and your evenings off you might go out at dusk. I use a camelback when it's really hot even though it's against "The Rules" for a road bike, lol. There is a group here that goes out at 4 a.m, wish I could stay up that late, but after work I'm dead on my feet. If I ever had the energy to try riding right after, I have enough lights and blinkies to see the road and make the bike visible. I saw video of night trail riding, they used helmet lights as well as handlebar lights, maybe for you that would be an option. The heat of the day, I believe is
not a good idea.