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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San Francisco CA

7 Day Forecast

Tonight

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

Low: 61 °F

Friday

Showers Chance for Measurable Precipitation 80%

Showers

High: 65 °F

Friday
Night

Showers Likely Chance for Measurable Precipitation 70%

Showers
Likely

Low: 54 °F

Saturday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 65 °F

Saturday
Night

Patchy Fog

Patchy
Fog

Low: 52 °F

Sunday

Patchy Fog

Patchy
Fog

High: 67 °F

Sunday
Night

Mostly Clear

Mostly
Clear

Low: 52 °F

Monday

Sunny

Sunny

High: 69 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 52 °F

Detailed Forecast

  • Tonight A 30 percent chance of rain after midnight. Cloudy, with a steady temperature around 61. Southwest wind 5 to 7 mph.
  • Friday Rain likely before noon, then showers after noon. High near 65. South southeast wind 7 to 10 mph becoming west in the afternoon. Chance of precipitation is 80%.
  • Friday Night Showers likely and possibly a thunderstorm. Some of the storms could produce small hail. Cloudy, with a low around 54. West wind 8 to 10 mph. Chance of precipitation is 70%.
  • Saturday A 30 percent chance of showers, mainly before noon. Partly sunny, with a high near 65. West wind 11 to 14 mph, with gusts as high as 18 mph.
  • Saturday Night Patchy fog after midnight. Otherwise, mostly clear, with a low around 52. West wind 6 to 13 mph.
  • Sunday Patchy fog before noon. Otherwise, sunny, with a high near 67.
  • Sunday Night Mostly clear, with a low around 52.
  • Monday Sunny, with a high near 69.
  • Monday Night Partly cloudy, with a low around 52.
  • Tuesday Mostly sunny, with a high near 71.
  • Tuesday Night Partly cloudy, with a low around 54.
  • Wednesday Sunny, with a high near 74.
  • Wednesday Night Partly cloudy, with a low around 56.
  • Thursday Mostly sunny, with a high near 74.