Southern California Braces for Week of Rain, Potentially Ending Rose Parade's 20-Year Dry Streak

Los Angeles, December 31, 2025 - As Southern California prepares to ring in 2026, a new storm system is set to bring widespread rain across the region starting New Year's Eve, marking the beginning of a wet week following a brief dry respite after heavy Christmas storms.

The National Weather Service forecasts rain arriving in the Los Angeles area between sunset on December 31 and the morning of January 1, with moderate showers likely continuing through New Year's Day. A flood watch is in effect for much of Los Angeles County from Wednesday evening through Thursday evening, with rainfall totals expected to reach 1 to 3 inches in coastal and valley areas, and higher amounts in foothills and mountains.

Coastal communities like Pacific Palisades and Santa Monica are bracing for steady rain and potential urban flooding in low-lying areas. The Palisades area, still recovering from the devastating January 2025 wildfire that left extensive burn scars, faces heightened risks of minor debris flows and rockslides due to saturated soils. However, no mandatory evacuation orders are currently in place for Pacific Palisades or Santa Monica-only precautionary evacuation warnings have been issued for select burn scar zones countywide, urging residents to be prepared to leave if conditions worsen. Authorities emphasize monitoring alerts closely, as rapid changes could occur overnight into January 1.

This incoming weather has put the spotlight on the 137th Tournament of Roses Parade in Pasadena, scheduled for January 1. Forecasts indicate an 80-90% chance of rain during the event, which would mark the first time since 2006 that the iconic New Year's Day tradition experiences wet conditions-only the 11th rainy parade in its history.

Pasadena officials and parade organizers have confirmed the event will proceed rain or shine. Floats are designed to withstand moisture, as natural materials like flowers absorb water without major issues. Minor adjustments, such as using ponchos for participants and closing convertible tops on antique vehicles, are planned. The city advises spectators to use ponchos or rain jackets instead of umbrellas, which are prohibited along the route to avoid blocking views.

After a powerful atmospheric river brought record rainfall and flooding during Christmas week, this latest system is driven by subtropical moisture and could linger with scattered showers through the first days of 2026.

Residents and visitors are urged to prepare for wet conditions, especially those camping overnight along Colorado Boulevard for prime parade viewing spots. Despite the forecast, organizers emphasize the parade's tradition of bringing joy and optimism to kick off the new year.