Shabbos- There may be severe thunderstorms developing shabbos afternoon that can bring down power lines and trees.
Shavuos night- First night of shavuos, after midnight there will be scattered storms with a 40% chance of rain.
First day Yom Tov- highs near 85 and humidity above 50%.
Second day shavuos- Gorgeous walking weather high of 81 humidity at 38%.