Hey Janie,
You should be good next weekend, but here are the same websites from the other post on the subject:
NOAA for weather, temperatures, and any flooding advisories out to 7 days in advance.
http://f1.weather.gov/MapClick.php?lat= ... RB1GvQrLrcUSGS stream data for Merced River at Pohono bridge showing volume and level relative to flood stage of 10 ft. I believe the models can be projected out at least several days ahead if you reset the fields.
https://waterdata.usgs.gov/ca/nwis/uv/? ... cy_cd=USGS
Yosemite NPS current conditions and advisories, with links to campground info and Yosemite Hospitality (the concessionaire), as well as a visitor info number at the bottom of the page.
https://www.nps.gov/yose/planyourvisit/conditions.htmPut them all together and you have a good idea of what is and will be. You'll have fun. If you plan on going up to the base of all the waterfalls, be sure to bring full rain gear or you're going to be soaked.