National Weather Service United States Department of Commerce

Unseasonably cold temperatures spreading into central U.S.

A strong cold front will usher a much colder air mass into the central and eastern U.S. for the end of the work week. Temperatures will be 10 to 20 degrees below average in some areas. Rain and snow will be possible across the Great Lakes on Friday as the system crosses the area. Heavy snow is possible in the central Appalachians Friday night.
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Current Conditions

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2 Miles NNE San Francisco CA

7 Day Forecast

Overnight

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

Low: 57 °F

Friday

Showers Chance for Measurable Precipitation 100%

Showers

High: 62 °F

Friday
Night

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

Low: 54 °F

Saturday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 62 °F

Saturday
Night

Patchy Fog

Patchy
Fog

Low: 52 °F

Sunday

Patchy Fog

Patchy
Fog

High: 65 °F

Sunday
Night

Mostly Clear

Mostly
Clear

Low: 53 °F

Monday

Mostly Sunny

Mostly
Sunny

High: 66 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 53 °F

Detailed Forecast

  • Overnight A 30 percent chance of rain. Cloudy, with a low around 57. South southwest wind around 7 mph.
  • Friday Showers, with thunderstorms also possible after 11am. High near 62. Light and variable wind becoming west 6 to 11 mph in the afternoon. Chance of precipitation is 100%.
  • Friday Night Showers likely and possibly a thunderstorm. Some of the storms could produce small hail. Mostly cloudy, with a low around 54. Calm wind becoming west 5 to 9 mph in the evening. Chance of precipitation is 60%.
  • Saturday A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 62. West wind 6 to 14 mph, with gusts as high as 18 mph.
  • Saturday Night Patchy fog after 11pm. Otherwise, mostly clear, with a low around 52. North northwest wind 6 to 13 mph.
  • Sunday Patchy fog before 8am. Otherwise, sunny, with a high near 65.
  • Sunday Night Mostly clear, with a low around 53.
  • Monday Mostly sunny, with a high near 66.
  • Monday Night Partly cloudy, with a low around 53.
  • Tuesday Mostly sunny, with a high near 67.
  • Tuesday Night Mostly clear, with a low around 55.
  • Wednesday Sunny, with a high near 71.
  • Wednesday Night Mostly clear, with a low around 56.
  • Thursday Sunny, with a high near 70.