A low associated with a trough moving through eastern Canada will bring a cold front through the area late Tuesday afternoon into evening. A few sprinkles may pop up. Cold air begins to move in after Tuesday night, along with the potential for some lake effect clouds Wednesday. Thursday brings cooler conditions – sweater weather seems to finally have shown up!
Tuesday
![](https://you.stonybrook.edu/weather/files/2015/09/cloudy-day-sac-2lvevbs.jpg)
Cloudy with the potential for a light shower. S winds 6-8mph shifting to W winds later in the evening.
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Tuesday Night
![](https://you.stonybrook.edu/weather/files/2015/09/calm-night-roth-t3m7jw.jpg)
Clouds will begin to clear. Cool, winds W 3-5mph.
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Chance of Rain
Wednesday
![](https://you.stonybrook.edu/weather/files/2015/09/incrcld-day-sac-1pmrmwj.jpg)
Sun and clouds, becoming mostly cloudy in the afternoon.
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Wednesday Night
![](https://you.stonybrook.edu/weather/files/2015/09/clr-night-sac2-2lgjmem.jpg)
Mostly clear, cool.
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Chance of Rain
Thursday
![](https://you.stonybrook.edu/weather/files/2015/09/partcld-day-sac-1izcu29.jpg)
Mostly sunny with cooler conditions.
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