Temp Basal worked wonders

Usually my 2hr after supper blood sugar is good,but for some reason I slowly begin to rise,even when I eat a low fat supper.I know it’s not my basal rate because I tested that and I usually go down.Well tonight starting at 6pm I did a temp basal increase of 20%. for 2 hours.my sugar usually rises around 9pm.At 7pm I was 11.4 and at 830pm I was 6.9.I will monitor it and if it stays good I think I will do that on a steady basis.