National Weather Service United States Department of Commerce

Arctic air to drop temperatures across the northern Plain and northern Rockies; will bring snow to the Intermountain West

An arctic front is forecast to plunge through the northern Plains and northern Rockies on Saturday bringing a drastic drop in temperatures across these areas with a burst of snow over much of the Intermountain Region. Arctic air will also filter into the Pacific Northwest bringing with it snow showers and subfreezing low temperatures.
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Current Conditions

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Rancho Santa Margarita CA

7 Day Forecast

For More Weather Information:

San Diego, CA Local Forecast Office

Overnight

Mostly Clear

Mostly
Clear

Low: 57 °F

Saturday

Sunny

Sunny

High: 73 °F

Saturday
Night

Chance Drizzle Chance for Measurable Precipitation 10%

Chance
Drizzle

Low: 53 °F

Sunday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 67 °F

Sunday
Night

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 53 °F

Monday

Slight Chance Showers Chance for Measurable Precipitation 10%

Slight Chc
Showers

High: 70 °F

Monday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 60 °F

Tuesday

Heavy Rain

Heavy
Rain

High: 66 °F

Tuesday
Night

Heavy Rain

Heavy
Rain

Low: 59 °F

Detailed Forecast

  • Overnight Mostly clear, with a low around 57. East wind around 5 mph.
  • Saturday Sunny, with a high near 73. South wind 5 to 10 mph.
  • Saturday Night A chance of drizzle between 10pm and 4am, then a chance of showers after 4am. Increasing clouds, with a low around 53. Southeast wind 5 to 10 mph. Chance of precipitation is 10%.
  • Sunday A 30 percent chance of showers, mainly before 10am. Mostly cloudy, with a high near 67. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
  • Sunday Night A 20 percent chance of showers before 10pm. Mostly cloudy, with a low around 53. East wind around 5 mph.
  • Monday A 10 percent chance of showers after 4pm. Partly sunny, with a high near 70.
  • Monday Night A 30 percent chance of showers, mainly after 10pm. Mostly cloudy, with a low around 60.
  • Tuesday Showers likely. The rain could be heavy at times. Mostly cloudy, with a high near 66.
  • Tuesday Night Rain likely. The rain could be heavy at times. Mostly cloudy, with a low around 59.
  • Wednesday A chance of showers. Partly sunny, with a high near 65.
  • Wednesday Night A chance of showers. Partly cloudy, with a low around 57.
  • Thursday A slight chance of showers. Partly sunny, with a high near 66.
  • Thursday Night A slight chance of showers. Partly cloudy, with a low around 56.
  • Friday Mostly sunny, with a high near 68.