Should I worry about PH right after rain?

I added some Soda wash yesterday to bring my ph up from 7.2 to 7.6. But it rained last night also, and is supposed to rain for the next 4 days. Right now the PH is at 7.8.

Should I leave it until the rain stops then adjust?

thanks

You are fine but 7.8 is as high as we recommend. Just keep an eye on it and add a little acid if necessary. Next time you need to raise pH, consider Borax (20 mule team). It will have less effect on TA.