San Diego/ Weather & Environment

Fog Lifts, Sizzle Shifts Inland: Sunny, Warm Weekend on Tap for San Diego

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Published on August 20, 2026
Fog Lifts, Sizzle Shifts Inland: Sunny, Warm Weekend on Tap for San DiegoSource: Kire1975, CC0, via Wikimedia Commons

San Diego starts today under mostly cloudy skies and patchy fog, but the gray cover should give way to a warmer, brighter afternoon. Temperatures are expected to reach about 81 degrees, with light south winds and only a 4% chance of rain.

Fog Fades Before A Sunny Afternoon

Patchy fog may linger through late morning, with the National Weather Service expecting it to clear before 11 AM. After that, skies should turn partly sunny and then mostly sunny through the afternoon as temperatures hover near 80 degrees.

Tonight will stay mild and partly cloudy, with a low around 69 degrees. Winds should remain light from the southwest at 5 mph or less, making for a fairly calm evening near the coast.

Weekend Forecast Stays Warm And Mostly Dry

Tomorrow will be mostly sunny with a high near 82 degrees, followed by another mild night around 69. Saturday and next Sunday will be mostly sunny with highs near 83, while overnight lows remain around 70.

The warm pattern continues into next week, with sunny or mostly sunny conditions and highs near 83 degrees next Monday, then around 84 degrees next Tuesday and Wednesday. Rain chances remain minimal in the city, although the weather service says a slight chance of afternoon showers and thunderstorms will continue for mountain and desert areas, especially next Thursday and Friday.

Inland Areas Face More Dangerous Heat

While coastal San Diego remains comparatively moderate, inland valleys and desert communities will be significantly hotter. The National Weather Service lists a heat advisory for the Inland Empire and an extreme heat warning through Sunday evening for the Coachella Valley, San Diego County deserts and the San Gorgonio Pass near Banning.