KTLA 5 News Weather Forecast: Winds, Rain, and Holiday Outlook for Dec. 17, 2025

Current Weather Conditions and Forecast

• 💨 Strong, gusty winds are the primary weather story, expected to continue until 4:00 AM on Thursday.
• ⚠️ Winds could reach 40 to 50 miles per hour in foothill and inland areas, with potential for damaging gusts.
• 🌧️ A chance of rain is anticipated as the Christmas holiday approaches, though it may not be as dense as the previous day.
• 🌡️ Afternoon temperatures are near average, with highs around 60 degrees, and expected to remain similar for Wednesday and Thursday.

Shifting Weather Patterns

• 🌊 A trough of low pressure is not currently impacting the weather, with a large dome of high pressure over the Pacific Ocean being the dominant factor.
• ⬇️ This high-pressure system is expected to shift, with an area of low pressure moving south, influencing weather by Friday.
• 📈 Onshore flow is predicted to strengthen over the weekend, leading to a drop in temperatures.

Holiday and Weekend Outlook

• 🗓️ The weather system is expected to bring more significant impacts by Friday and into the weekend, continuing through early next week.
• ☁️ Saturday and Sunday will see increased cloud cover, especially in beach and Orange County areas.
• ☔ The chance of rain could begin as early as Tuesday, December 23rd, continuing into Wednesday.

Regional Forecasts

• ☀️ San Gabriel Valley: Partly cloudy with highs around 80 degrees on Wednesday, dropping to 71 by Friday.
• 🏜️ High Desert: Expects highs in the mid-70s on Wednesday, warming slightly to 76 on Friday, with partly cloudy skies.
• 🏖️ Beaches: Highs around 70 degrees on Wednesday, dropping to the mid-60s by Friday, with heavy cloud cover expected Saturday and Sunday.
• 🏞️ Inland Empire: Mostly sunny with highs around 84 degrees on Wednesday, dropping to the mid-70s by Saturday.