National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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Current Conditions

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San Marcos CA

7 Day Forecast

For More Weather Information:

San Diego, CA Local Forecast Office

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 52 °F

Sunday

Mostly Sunny

Mostly
Sunny

High: 77 °F

Sunday
Night

Mostly Clear

Mostly
Clear

Low: 51 °F

Monday

Sunny

Sunny

High: 78 °F

Monday
Night

Clear

Clear

Low: 53 °F

Tuesday

Breezy

Breezy

High: 78 °F

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 54 °F

Wednesday

Sunny

Sunny

High: 84 °F

Wednesday
Night

Mostly Clear

Mostly
Clear

Low: 56 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 52. East wind around 5 mph.
  • Sunday Mostly sunny, with a high near 77. North wind 5 to 10 mph.
  • Sunday Night Mostly clear, with a low around 51. East wind 5 to 10 mph.
  • Monday Sunny, with a high near 78. East wind 5 to 10 mph becoming northwest in the afternoon.
  • Monday Night Clear, with a low around 53. Northwest wind 5 to 10 mph becoming east in the evening.
  • Tuesday Sunny, with a high near 78. Breezy.
  • Tuesday Night Mostly clear, with a low around 54.
  • Wednesday Sunny, with a high near 84.
  • Wednesday Night Mostly clear, with a low around 56.
  • Thanksgiving Day Sunny, with a high near 84.
  • Thursday Night Mostly clear, with a low around 54.
  • Friday Sunny, with a high near 77.
  • Friday Night Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 54.
  • Saturday Patchy fog before 10am. Otherwise, mostly sunny, with a high near 73.