National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the West Coast through Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Current Conditions

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Stony Brook NY

7 Day Forecast

For More Weather Information:

New York, NY Local Forecast Office

Today

Chance Light Snow Chance for Measurable Precipitation 40%

Chance
Light Snow

High: 38 °F

Tonight

Chance Sprinkles/Flurries

Chance
Sprinkles/Flurries

Low: 31 °F

Monday

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

High: 43 °F

Monday
Night

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

Low: 39 °F

Tuesday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 51 °F

Tuesday
Night

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

Low: 45 °F

Wednesday

Rain Chance for Measurable Precipitation 90%

Rain

High: 56 °F

Wednesday
Night

Rain Chance for Measurable Precipitation 90%

Rain

Low: 45 °F

Christmas
Day

Chance Showers Chance for Measurable Precipitation 50%

Chance
Showers

High: 51 °F

Detailed Forecast

  • Today A chance of light snow before noon. Mostly cloudy, with a high near 38. Wind chill values between 25 and 30. North wind 6 to 8 mph. Chance of precipitation is 40%.
  • Tonight Scattered sprinkles and flurries before 9pm, then scattered flurries. Mostly cloudy, with a low around 31. North wind around 5 mph becoming calm in the evening.
  • Monday A chance of rain after noon. Mostly cloudy, with a high near 43. Wind chill values between 30 and 40. Northeast wind 3 to 7 mph. Chance of precipitation is 30%.
  • Monday Night A chance of rain. Cloudy, with a low around 39. East wind 3 to 6 mph. Chance of precipitation is 50%.
  • Tuesday A chance of rain. Cloudy, with a high near 51. East wind 6 to 9 mph. Chance of precipitation is 50%.
  • Tuesday Night Rain likely. Cloudy, with a low around 45. Chance of precipitation is 70%.
  • Wednesday Rain. High near 56. Breezy. Chance of precipitation is 90%.
  • Wednesday Night Rain. Low around 45. Breezy. Chance of precipitation is 90%.
  • Christmas Day A chance of showers. Partly sunny, with a high near 51. Breezy. Chance of precipitation is 50%.
  • Thursday Night Mostly clear, with a low around 36. Breezy.
  • Friday Sunny, with a high near 47.
  • Friday Night Partly cloudy, with a low around 39.
  • Saturday A chance of rain. Partly sunny, with a high near 48. Chance of precipitation is 30%.