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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3 Miles N San Francisco CA

7 Day Forecast

Overnight

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

Low: 59 °F

Friday

Showers Chance for Measurable Precipitation 100%

Showers

High: 61 °F

Friday
Night

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

Low: 57 °F

Saturday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 61 °F

Saturday
Night

Patchy Fog

Patchy
Fog

Low: 54 °F

Sunday

Patchy Fog

Patchy
Fog

High: 63 °F

Sunday
Night

Mostly Clear

Mostly
Clear

Low: 55 °F

Monday

Mostly Sunny

Mostly
Sunny

High: 64 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 56 °F

Detailed Forecast

  • Overnight A 30 percent chance of rain. Cloudy, with a low around 59. South southwest wind around 8 mph.
  • Friday Showers, with thunderstorms also possible after 11am. High near 61. Light and variable wind becoming west northwest 8 to 13 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 57. West wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
  • Saturday A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 61. Breezy, with a southwest wind 8 to 13 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 37 mph.
  • Saturday Night Patchy fog after 11pm. Otherwise, mostly clear, with a low around 54. Southwest wind 16 to 21 mph becoming north northwest 6 to 11 mph in the evening. Winds could gust as high as 30 mph.
  • Sunday Patchy fog before 8am. Otherwise, sunny, with a high near 63.
  • Sunday Night Mostly clear, with a low around 55.
  • Monday Mostly sunny, with a high near 64.
  • Monday Night Partly cloudy, with a low around 56.
  • Tuesday Mostly sunny, with a high near 65.
  • Tuesday Night Mostly clear, with a low around 58.
  • Wednesday Sunny, with a high near 68.
  • Wednesday Night Mostly clear, with a low around 59.
  • Thursday Sunny, with a high near 67.