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HAPPINESS

IS A WARM CUP

December 30, 2025 7:28 am

Southern California Overview:

  • Cloudier conditions with warm weather is expected today. Santa Ana winds remain gusty this morning, then weaken by this evening across the mountains and western valleys. A low pressure system will bring periods of showers for New Year`s Eve and New Year`s Day with the potential for more cloudier and wet weather by the end of the week into early next week.
  • United States Overview:

    • Heavy lake-effect snow expected to linger across the Great Lakes as a big cyclone pivots away into eastern Canada. Arctic air will dominate the eastern two-thirds of the country including Florida followed by a quick warm-up across the Northern and Central Plains amid a mild and tranquil Intermountain West. Rain associated with an anomalous low pressure system from the tropical latitudes is forecast to bring the threat of flash flooding for southern California on New Year's Eve into New Year's Day.

Local/State Headlines.

  • Another storm to soak Southern California this week — Here’s the timing.
  • Another storm is coming to SoCal. Here's what to expect on New Year's Day.

Nat’l/Int’l Headlines…

  • Monster lake-effect snowstorm to dump feet of snow this week, prompting expanded New York State of Emergency.
  • Heavy snow pounds Syracuse, New York, as a powerful lake-effect snowstorm grips the Great Lakes.
  • Series of storms to bring days of lake-effect snow to portions of the Great Lakes.
  • Snow, wind and freezing temps. See the New Year's Eve forecast.
  • Snowstorm barrels through the northern US causing power outages, blizzard conditions.

NOAA Weather

MOUNT WILSON, CA

Last Update on Dec 30 2025, 6:20 am PST

Weather by NOAA

Current Conditions: NULL

NOAA Icon

Temp: 54°F

Wind: East at 7mph

Humidity: 24%

Dewpoint: 17.6°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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