National Weather Service United States Department of Commerce

Heavy lake-effect snow continues across lower Great Lakes

Another round of heavy lake-effect snow is forecast for the Great Lakes through mid-day Friday. An additional 30 inches or more could fall in some locations, on top of the impressive amounts that have fallen already. This will result in very difficult or nearly impossible travel at times in the heaviest snow bands. The snow should taper off during the morning on Friday.
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Current Conditions

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San Bruno CA

7 Day Forecast

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 11 °C

Friday

Slight Chance Rain Chance for Measurable Precipitation 10%

Slight Chc
Rain

High: 17 °C

Friday
Night

Rain Likely Chance for Measurable Precipitation 60%

Rain
Likely

Low: 13 °C

Saturday

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

High: 18 °C

Saturday
Night

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

Low: 11 °C

Sunday

Mostly Sunny

Mostly
Sunny

High: 17 °C

Sunday
Night

Mostly Clear

Mostly
Clear

Low: 11 °C

Monday

Mostly Sunny

Mostly
Sunny

High: 18 °C

Monday
Night

Mostly Clear

Mostly
Clear

Low: 11 °C

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 11. North wind around 8 km/h.
  • Friday A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 17. North northeast wind 3 to 8 km/h.
  • Friday Night Rain likely, mainly after 4am. Mostly cloudy, with a low around 13. South southwest wind 5 to 10 km/h. Chance of precipitation is 60%.
  • Saturday Rain likely, mainly before 10am. Mostly cloudy, with a high near 18. South southwest wind 21 to 24 km/h becoming west northwest in the afternoon. Winds could gust as high as 35 km/h. Chance of precipitation is 70%.
  • Saturday Night A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 11. West northwest wind around 21 km/h, with gusts as high as 29 km/h.
  • Sunday Mostly sunny, with a high near 17.
  • Sunday Night Mostly clear, with a low around 11.
  • Monday Mostly sunny, with a high near 18.
  • Monday Night Mostly clear, with a low around 11.
  • Tuesday Sunny, with a high near 19.
  • Tuesday Night Mostly clear, with a low around 12.
  • Wednesday Sunny, with a high near 19.
  • Wednesday Night Mostly clear, with a low around 12.
  • Thanksgiving Day Sunny, with a high near 18.