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Southern California Weather

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HAPPINESS

IS A WARM CUP

December 29, 2025 11:59 pm

Southern California Overview:

  • Dry and warm weather with increasing high clouds continues into Tuesday with gusty Santa Ana winds across the mountains and valleys. A low pressure system will bring periods of showers for New Year`s Eve and New Year`s Day, followed by additional mostly light showers Friday into early next week.
  • United States Overview:

    • Heavy lake effect snow expected through midweek as potent winter storm pivots into Quebec. Arctic air will surge into the eastern two-thirds of the country including Florida followed by a quick warm-up across the Northern and Central Plains.

Local/State Headlines.

  • Southern California braces for more heavy rain — here’s the timeline.
  • Santa Ana winds send massive tree crashing onto Sylmar home.
  • ‘We hear cracking and then a big thud’: Santa Ana winds topple trees across SoCal.
  • Gusty Santa Ana winds bring downed trees, damage to cities across SoCal.
  • Another storm is coming to SoCal. Here's what to expect on New Year's Day.
  • Storm system moves into San Diego County for New Year’s Eve, Day.

Nat’l/Int’l Headlines…

  • Dangerous winter storm intensifies, knocks out power to over 300,000 from hurricane-force winds, heavy snow.
  • Over 50 cars, multiple semi-trucks involved in pile-up on I-75 in Michigan amid dangerous winter storm.
  • Monster lake effect snowstorm set to dump feet of snow this week.
  • Eastern U.S. braces for arctic plunge after record-setting heat last week.
  • Fierce snow and winds in upstate New York.

NOAA Weather

MOUNT WILSON, CA

Last Update on Dec 29 2025, 11:20 pm PST

Weather by NOAA

Current Conditions: NULL

NOAA Icon

Temp: 50°F

Wind: SE at 9mph

Humidity: 28%

Windchill: 47°F

Your 5-Day Forecast at a Glance

On this day – 12.30.1965

A warm storm of torrential rains also melted mountain snow from 12/29 to 12/31. One report said more than 13 inches fell in 24 hours at Mt. Baldy. Nearly nine inches did fall in Lake Arrowhead, and 1.5 to three inches in the coastal lowlands. One drowned in Lytle Creek. Disastrous flooding and debris flows occurred in the Lytle Creek and Scotland communities, Baldy Village, and in Waterman Canyon. Two boys were rescued from the Santa Ana River in Colton. Numerous roads were washed out in the high desert and the mountains.

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