National Weather Service United States Department of Commerce

Unsettled weather in store for eastern U.S. into weekend

A complex weather system moving across the eastern U.S. will bring a variety of hazardous weather to the region into the weekend. Much colder weather is expected by Saturday, along with numerous showers and accumulating snow in the higher elevations of the Appalachians. Rain and snow will move into northern New England on Sunday.
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Current Conditions

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Foster City CA

7 Day Forecast

Overnight

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

Low: 54 °F

Saturday

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

High: 63 °F

Saturday
Night

Patchy Fog

Patchy
Fog

Low: 51 °F

Sunday

Patchy Fog

Patchy
Fog

High: 64 °F

Sunday
Night

Mostly Clear

Mostly
Clear

Low: 52 °F

Monday

Sunny

Sunny

High: 64 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 52 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 66 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 54 °F

Detailed Forecast

  • Overnight Showers likely. Cloudy, with a low around 54. West northwest wind 9 to 13 mph. Chance of precipitation is 60%.
  • Saturday A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 63. North northwest wind 5 to 9 mph becoming calm.
  • Saturday Night Patchy fog after 11pm. Otherwise, mostly clear, with a low around 51. West northwest wind 8 to 13 mph.
  • Sunday Patchy fog before 8am. Otherwise, sunny, with a high near 64. North northwest wind 5 to 7 mph.
  • Sunday Night Mostly clear, with a low around 52. West northwest wind 9 to 11 mph.
  • Monday Sunny, with a high near 64.
  • Monday Night Partly cloudy, with a low around 52.
  • Tuesday Mostly sunny, with a high near 66.
  • Tuesday Night Partly cloudy, with a low around 54.
  • Wednesday Sunny, with a high near 70.
  • Wednesday Night Mostly clear, with a low around 56.
  • Thursday Sunny, with a high near 68.
  • Thursday Night A slight chance of rain. Mostly clear, with a low around 56.
  • Friday Sunny, with a high near 68.