National Weather Service United States Department of Commerce

Winter weather forecast for Rockies and southern Plains

A developing storm system will bring snow to parts of the Rockies and southern Plains on Friday, which will move into the central U.S. on Saturday. Freezing rain is also forecast from Texas to the mid-Mississippi Valley and into the Carolinas. Meanwhile, temperatures will be 20-40 degrees below normal across parts of the central and southern U.S. on Friday.
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Current Conditions

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4 Miles WSW Portola Valley CA

7 Day Forecast

Late
Afternoon

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 57 °F

Tonight

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

Low: 44 °F

Saturday

Severe Thunderstorms Chance for Measurable Precipitation 40%

Severe
Thunderstorms

High: 60 °F

Saturday
Night

Severe Thunderstorms Chance for Measurable Precipitation 30%

Severe
Thunderstorms

Low: 41 °F

Sunday

Mostly Sunny

Mostly
Sunny

High: 63 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 43 °F

Monday

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 62 °F

Monday
Night

Chance Showers

Chance
Showers

Low: 41 °F

Tuesday

Chance Showers

Chance
Showers

High: 63 °F

Detailed Forecast

  • Late Afternoon A 30 percent chance of showers. Cloudy, with a steady temperature around 57. West northwest wind around 18 mph, with gusts as high as 23 mph.
  • Tonight A chance of showers. Cloudy, with a low around 44. West northwest wind 14 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch possible.
  • Saturday A 40 percent chance of showers and thunderstorms. Some storms could be severe, with large hail. Cloudy, with a high near 60. West northwest wind 9 to 11 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Saturday Night A chance of showers and thunderstorms. Some storms could be severe, with large hail. Mostly cloudy, with a low around 41. North northwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
  • Sunday Mostly sunny, with a high near 63. East northeast wind 5 to 14 mph, with gusts as high as 18 mph.
  • Sunday Night Partly cloudy, with a low around 43.
  • Monday A 20 percent chance of showers. Partly sunny, with a high near 62.
  • Monday Night A chance of showers. Mostly cloudy, with a low around 41.
  • Tuesday A chance of showers. Mostly sunny, with a high near 63.
  • Tuesday Night Mostly cloudy, with a low around 41.
  • Wednesday Partly sunny, with a high near 66.
  • Wednesday Night Partly cloudy, with a low around 43.
  • Thursday Mostly sunny, with a high near 67.
  • Thursday Night Partly cloudy, with a low around 44.
  • Friday Mostly sunny, with a high near 67.