Synopsis:
Currently an upper ridge passing over the northeast. Southwesterly moisture surge from tropical system Nate. Tropical system Nate approaching Monday night.
Saturday
![](https://you.stonybrook.edu/weather/files/2015/09/cloudy-day-sac-2lvevbs.jpg)
Cloudy and humid
High
%
Chance of Rain
Saturday Night
![](https://you.stonybrook.edu/weather/files/2015/09/clr-night-sac2-2lgjmem.jpg)
Mostly cloudy, warm and muggy
Low
%
Chance of Rain
Sunday
![](https://you.stonybrook.edu/weather/files/2015/09/thunderstorm-day-humanities-1wsky10.jpg)
Mostly cloudy, chance of showers and thunderstorms
High
%
Chance of Rain
Sunday Night
![](https://you.stonybrook.edu/weather/files/2015/09/rain-night-sac-19hx1k0.jpg)
Mostly cloudy, chance of showers and thunderstorms
Low
%
Chance of Rain
Monday
![](https://you.stonybrook.edu/weather/files/2015/09/thunderstorm-day-humanities-1wsky10.jpg)
Showers likely and possibly a thunderstorm
High
%