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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Groton CT

7 Day Forecast

For More Weather Information:

New York, NY Local Forecast Office

Today

Rain/Snow Likely Chance for Measurable Precipitation 60%

Rain/Snow
Likely

High: 38 °F

Tonight

Chance Sprinkles/Flurries

Chance
Sprinkles/Flurries

Low: 30 °F

Monday

Partly Sunny

Partly
Sunny

High: 45 °F

Monday
Night

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

Low: 41 °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: 46 °F

Wednesday

Rain Chance for Measurable Precipitation 90%

Rain

High: 56 °F

Wednesday
Night

Rain Chance for Measurable Precipitation 100%

Rain

Low: 46 °F

Christmas
Day

Rain Likely Chance for Measurable Precipitation 60%

Rain
Likely

High: 51 °F

Detailed Forecast

  • Today Snow likely before noon, then a chance of rain and snow. Cloudy, with a high near 38. Wind chill values between 30 and 35. North wind around 8 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.
  • Tonight Scattered sprinkles and flurries before 9pm, then scattered flurries. Mostly cloudy, with a low around 30. Northeast wind around 7 mph.
  • Monday Partly sunny, with a high near 45. Wind chill values between 25 and 35 early. East wind 7 to 9 mph.
  • Monday Night A chance of rain, mainly after midnight. Cloudy, with a low around 41. East wind 7 to 10 mph. Chance of precipitation is 40%.
  • Tuesday A chance of rain. Cloudy, with a high near 51. East wind 9 to 11 mph. Chance of precipitation is 50%.
  • Tuesday Night Rain likely. Cloudy, with a low around 46. Chance of precipitation is 70%.
  • Wednesday Rain. High near 56. Breezy. Chance of precipitation is 90%.
  • Wednesday Night Rain. Low around 46. Breezy. Chance of precipitation is 100%.
  • Christmas Day Rain likely. Partly sunny, with a high near 51. Breezy. Chance of precipitation is 60%.
  • Thursday Night Partly cloudy, 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%.