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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Port Sanilac MI

7 Day Forecast

For More Weather Information:

Detroit/Pontiac, MI Local Forecast Office

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 25 °F

Sunday

Partly Sunny

Partly
Sunny

High: 34 °F

Sunday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 29 °F

Monday

Mostly Cloudy

Mostly
Cloudy

High: 40 °F

Monday
Night

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

Low: 36 °F

Tuesday

Showers Likely Chance for Measurable Precipitation 70%

Showers
Likely

High: 44 °F

Tuesday
Night

Showers Chance for Measurable Precipitation 80%

Showers

Low: 40 °F

Wednesday

Showers

Showers

High: 47 °F

Wednesday
Night

Rain/Snow

Rain/Snow

Low: 32 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 25. West southwest wind around 7 mph.
  • Sunday Partly sunny, with a high near 34. South wind 5 to 8 mph.
  • Sunday Night Mostly cloudy, with a low around 29. South wind 9 to 14 mph, with gusts as high as 18 mph.
  • Monday Mostly cloudy, with a high near 40. South southeast wind 10 to 13 mph, with gusts as high as 18 mph.
  • Monday Night A chance of showers after 8pm. Cloudy, with a low around 36. South southeast wind around 14 mph. Chance of precipitation is 40%.
  • Tuesday Showers likely, mainly after 8am. Cloudy, with a high near 44. Chance of precipitation is 70%.
  • Tuesday Night Showers. Low around 40. Chance of precipitation is 80%.
  • Wednesday Showers. Cloudy, with a high near 47.
  • Wednesday Night Rain and snow showers. Cloudy, with a low around 32. Breezy.
  • Christmas Day A chance of snow showers. Cloudy, with a high near 36. Breezy.
  • Thursday Night A chance of snow showers. Mostly cloudy, with a low around 29. Breezy.
  • Friday A chance of snow showers. Mostly cloudy, with a high near 37.
  • Friday Night A chance of snow showers. Mostly cloudy, with a low around 28.
  • Saturday A chance of snow showers. Mostly cloudy, with a high near 34.