---
title: "June Gloom Hangs On, but a Fourth of July Warmup Is Coming"
description: "That gray marine layer over your mornings isn't leaving just yet — but forecasters say real summer warmth should arrive in time for the Fourth of July weekend."
category: "Los Angeles"
category_url: https://herald.la/category/los-angeles
author: "Anjali Rao"
published: 2026-06-28T08:43:43.000Z
updated: 2026-06-28T08:43:43.000Z
canonical: https://herald.la/article/june-gloom-hangs-on-but-a-fourth-of-july-warmup-is-coming
tags: ["weather", "June Gloom", "marine layer", "Fourth of July", "Southern California", "forecast"]
---
# June Gloom Hangs On, but a Fourth of July Warmup Is Coming

That gray marine layer over your mornings isn't leaving just yet — but forecasters say real summer warmth should arrive in time for the Fourth of July weekend.

If you stepped outside Saturday morning hoping for sunshine and got a sky the color of wet concrete, you've met June Gloom — Southern California's annual habit of cool, gray mornings that lingers stubbornly into late June.

## Still gray, by design

The National Weather Service's Los Angeles/Oxnard office expects the pattern to hold for several more days, with marine-layer clouds and patchy fog reforming each night and morning through much of the coming week, [per its forecast discussion](https://forecast.weather.gov/product.php?site=LOX&issuedby=LOX&product=AFD&format=CI&version=1&glossary=1). In plain terms: count on overcast starts that burn off to sunshine by afternoon, more or less, through midweek.

## What June Gloom actually is

The nickname describes a seasonal pattern driven by the Pacific's marine layer — a mass of cool, moist ocean air that pools offshore and pushes inland overnight. The cold California Current keeps coastal waters chilly even as inland valleys heat up, and that contrast generates the low clouds and fog that blanket the coast and creep into the basin most mornings this time of year. By afternoon the sun usually wins out, though not always and not everywhere.

This week is a textbook example. ABC7's forecast put Sunday highs in the low-to-mid 70s across much of the region — around the mid-70s for Los Angeles and the inland valleys, cooler near the beaches with a chance of morning drizzle, [the station reported](https://abc7.com/post/los-angeles-weather-temperatures-southern-california/58983/). Pleasant, but decidedly un-summery for late June.

## The holiday warmup

The better news for anyone planning a barbecue or a trip to the beach: the NWS expects high pressure to build over the region toward the end of the week, bringing a gradual warming trend into the holiday weekend and temperatures near or a little above normal by the Fourth of July. Forecasters flagged the most widespread highs in the upper 70s and 80s, with some inland valleys potentially climbing into the 90s — a forecast that, several days out, still carries real uncertainty and could shift.

As of Saturday, the weather service had issued no heat advisories or fire-weather warnings for the area, with conditions staying mild while the marine layer holds. That could change as high pressure strengthens, so it's worth checking an updated forecast closer to the weekend.

## Planning the Fourth

For fireworks night, expect a warm but not punishing evening if the current outlook holds — coolest along the coast, where an after-dark layer is a good idea, and warmest inland. Until then, the gray mornings are free. Enjoy the cool while it lasts.

*Forecast details are from the National Weather Service Los Angeles/Oxnard office as of June 28, 2026; conditions change, so check [weather.gov/lox](https://www.weather.gov/lox/) for the latest.*

## Sources

- [Southern California weather: June Gloom continues ahead of July 4 warmup](https://abc7.com/post/los-angeles-weather-temperatures-southern-california/58983/)
- [NWS Los Angeles/Oxnard Area Forecast Discussion](https://forecast.weather.gov/product.php?site=LOX&issuedby=LOX&product=AFD&format=CI&version=1&glossary=1)
- [National Weather Service 7-Day Forecast — Los Angeles](https://forecast.weather.gov/MapClick.php?CityName=Los+Angeles&state=CA&site=LOX)