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San Marcos, CA 92096 Weather
Current conditions
Observed at AU709 Escondido · 1 hr ago
Forecast
10-day-
Wednesday
A chance of rain showers after 11am. Mostly sunny, with a high near 77. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
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Wednesday Night
A chance of rain showers before 11pm, then showers and thunderstorms. Mostly cloudy, with a low around 62. South wind 0 to 5 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
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Thursday
Showers and thunderstorms. Mostly cloudy, with a high near 69. South wind 0 to 5 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
National Weather Service forecast updated 1 day ago.
Hourly
Hourly forecast- Now76°16%
- 2 PM76°16%
- 3 PM76°16%
- 4 PM74°16%
- 5 PM72°47%
- 6 PM71°47%
- 7 PM69°47%
- 8 PM68°47%
- 9 PM67°47%
- 10 PM67°47%
- 11 PM66°74%
- Thu12 AM66°74%
- 1 AM65°74%
- 2 AM64°74%
- 3 AM64°74%
- 4 AM64°74%
- 5 AM63°95%
- 6 AM63°95%
- 7 AM62°95%
- 8 AM63°95%
- 9 AM64°95%
- 10 AM66°95%
- 11 AM64°87%
- 12 PM68°87%
10-day forecast
Details- TonightOct 20Mostly Cloudy62°
- TodayOct 21Chance Rain Showers95%62°77°
- ThuOct 22Showers And Thunderstorms95%57°69°
- FriOct 23Mostly Sunny56°71°
- SatOct 24Sunny59°77°
- SunOct 25Sunny61°81°
- MonOct 26Sunny60°82°
- TueOct 27Mostly Sunny80°
- WedOct 28Cloudy63°92°
- ThuOct 29Cloudy65°84°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in California
More weather news-
Rare severe storm threat targets Southern California while Arizona faces potential egg-sized hail, tornadoesFLAGSTAFF, Ariz. — Severe thunderstorms blasted parts of Arizona early Wednesday ahead of a rare severe weather threat that will intensify through the day and into the evening. Parts of the state, including Flagstaff…
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California's rainy season to arrive with flood threat, tornado risk and Sierra snowCalifornia's wet season is starting off with a bang. The first significant storm of the season is forecast to bring heavy rain to vulnerable burn scars near Big Sur, coastal tornado risk to the Los Angeles area, and a…
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Storms descend on Southern California, raising risk of dangerous surf, flooding, debris flowsRain is anticipated for Southern California on Wednesday into Thursday as the National Weather Service cautioned about potential beach hazards and thunderstorms from Oxnard to the Mexico border. The weather service's…
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Southern California's wild weather swings continue. Next up, rainSouthern California is likely in for a solid dose of rain this week, just days after heat and Santa Ana winds helped fuel several wildfires across the region. Forecasters expect the bulk of the rain to roll into the Los…
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Rain and Thunderstorms Expected in Southern California with Beach Hazard WarningsAt SSBCrack News, our dedicated editorial team brings you the latest and most reliable updates on Defence, Geopolitics, Military Affairs, Science, and Technology. Driven by a passion for national security and strategic…
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Waterspouts possible off Southern California amid stormy weatherSouthern California's stormy forecast includes a chance of isolated waterspouts offshore. They may look like tornadoes, but they're not. Our latest explainer breaks down what waterspouts are, how they form over the…
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California weather with Dirk & Heather: Showers, thunderstorms and snowWednesday and Thursday will be cool and unsettled with scattered downpours. The first rain chances of the new water year are coming up quickly in Northern California! Wednesday and Thursday will be cool, cloudy and at…
- Flash-flood risk rises in Southern California, severe storms threaten Arizona
Satellite image of southwest U.S. at 17:20 UTC on October 20, 2026. Credit: NOAA/GOES-19, Zoom Earth, The Watchers The WPC Excessive Rainfall Discussion issued at 15:33 UTC on October 20 places portions of Southern…
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Mid-October Santa Ana winds rapidly spread wildfires in Southern CaliforniaSeveral fires have erupted recently amid strong, dry winds known as the Santa Anas. The name is commonly linked way back in the 1800s to Santa Ana Canyon in Orange County, through which these warm winds were known to…
- Winter weather advisory for California for Wednesday and Thursday
The NWS Hanford CA released a winter weather advisory at 12:51 p.m. on Tuesday valid from Wednesday 11 a.m. until Thursday 11 a.m. The advisory is for Yosemite, Upper San Joaquin River, Kaiser to Rodgers Ridge, Kings…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- WedGood (50)
- ThuGood (41)
- FriGood (42)
San Diego Mesa and Inland Valley, CA reporting area · 2 hrs ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Nearby
- San Diego 48 km
- Chula Vista 56 km
- Oceanside 21 km
- Escondido 8 km
- Carlsbad 17 km
- Temecula 39 km
- Murrieta 46 km
- El Cajon 43 km
- Vista 10 km
- San Clemente 52 km
- Encinitas 17 km
- National City 52 km
Forecasters' discussion
From the National Weather Service office in SGX, issued 8 hrs ago
Synopsis
A low pressure system moving southward off the California coast will bring general cooling through Thursday. It is also expected to produce showers and a slight chance of thunderstorms for late today through Thursday as it moves inland through California into Nevada. Warmer and drier for the weekend. Offshore flow on Saturday could produce gusty northeast to east winds in and below mountain passes and canyons as well as the Inland Empire corridor between the Cajon Pass and the Santa Ana Mountains. The offshore flow weakens for Sunday into early next week.
Aviation
211130Z...SCT-BKN cloud layers around 2000 and 8000 feet MSL will continue into the afternoon. A band of RA/SHRA will move west to east through the region 21-06Z. Cigs will drop to 2500-3500 feet MSL and vis 3-6SM during this band's passage. A few embedded +SHRA/TSRA could produce brief and local IFR conditions. Winds shift from south to southwest and cigs lift to about 3000 feet MSL as the precip band passes after 11Z Thursday followed by SHRA.
Marine
A storm system will move through the coastal waters this afternoon through early Thursday. Southerly winds today will shift to southwest tonight, then westerly Thursday, with occasional wind gusts exceeding 20 knots. There is a 15-25% chance of TSRA after 22Z into Thursday. No hazardous marine conditions are expected Thursday night through Sunday.
Skywarn
Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.