I wouldn't advise race pace everyday during the summer but if you really want to, here are the best ways to do it.
Progression runs
Start each run at an easy pace, and after a few miles start increasing the pace if you are up to it. If you are not up to it then run easy that day, not big deal. If you are feeling really good then you can crank the last few miles at half marathon effort with the last 800 meters+ at 5k pace. This is slightly less stressful on the body compared to other ways of getting in race pace volume because it is more based on feel and is a gradual acceleration-no stops and starts of repeats on the track. Make sure to cool down afterwards though with an easy mile or so. Rinse and repeat later that day, the day after or whenever you feel ready for a hard but controlled effort.
Fartleks
5 minutes on, 5 minutes off
2 minute on, 2 minute off
3 minutes on, 1 minute off
1/2/3/4/5/4/3/2/1
These prepare you for the changing pace that occurs in racing. Note that "off" does not mean standing still like a lot of people do between intervals. It means easy running.
Strides
Just tacking on 6-8 strides at mile or 5k pace after or during an easy run is a good way to get a bit of race pace in your legs. Do them on the track, or on grass, or on trails or on the roads. Barefooting is optional.
Races
Running summer road races as light workouts is a good way to get in miles at race pace as well as getting you used to racing the type of distances you will be competing over in the fall.