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Costa Mesa, CA 92627 Weather
Current conditions
Observed at John Wayne-Orange County Airport · 32 min ago
Forecast
10-day-
Today
Mostly sunny, with a high near 77. South wind 0 to 10 mph.
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Tonight
Mostly cloudy, with a low around 61. South wind around 5 mph.
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Wednesday
A chance of rain showers between 11am and 5pm, then showers and thunderstorms. Mostly cloudy, with a high near 72. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
National Weather Service forecast updated 6 hrs ago.
Hourly
Hourly forecast- Now68°
- 10 AM71°
- 11 AM75°
- 12 PM75°
- 1 PM76°
- 2 PM77°
- 3 PM76°
- 4 PM75°
- 5 PM74°
- 6 PM71°
- 7 PM69°
- 8 PM68°
- 9 PM66°
- 10 PM66°
- 11 PM65°
- Wed12 AM65°
- 1 AM64°
- 2 AM64°
- 3 AM63°
- 4 AM62°
- 5 AM62°11%
- 6 AM61°11%
- 7 AM62°11%
- 8 AM64°11%
Daily forecast
Details- TodayOct 20Mostly Sunny11%61°77°
- WedOct 21Showers And Thunderstorms95%62°72°
- ThuOct 22Showers And Thunderstorms87%57°69°
- FriOct 23Sunny58°71°
- SatOct 24Sunny61°78°
- SunOct 25Mostly Sunny61°79°
- MonOct 26Sunny61°79°
- TueOct 27Cloudy60°83°
- WedOct 28Cloudy60°79°
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 near Costa Mesa
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Air quality
Forecast
- TueGood (41)
N Coastal Orange, CA reporting area. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlySanta Ana Fire Station, records since 1916. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Los Angeles 54 km
- Long Beach 29 km
- Anaheim 21 km
- Riverside 59 km
- Santa Ana 12 km
- Irvine 9 km
- Huntington Beach 8 km
- Garden Grove 14 km
- Rancho Cucamonga 59 km
- Ontario 52 km
- Corona 41 km
- Pomona 48 km
Forecasters' discussion
From the National Weather Service office in SGX, issued 5 hrs ago
Synopsis
A low pressure system moving southward off the California coast will spreading cooling inland through Thursday. It is expected to bring showers and slight chance of thunderstorms for late Wednesday through Thursday is it moves inland through California into Nevada. Then warmer and drier for next weekend.
Aviation
201130Z...Coast/Valleys...Areas of intermittent low clouds based around 1200-1800 feet MSL extending into western valleys through 16Z. Low clouds based around 1800-2200 feet MSL to redevelop after 05Z tonight, extending into parts of inland valleys by early Wednesday. Vis reduced 2-5SM inland.
Otherwise...mostly clear and VFR conditions through 18Z. SCT-BKN clouds based around 10 kft develop over inland areas, especially mountains, 19-01Z. Isold SHRA over mountains 21-01Z. Random SCT clouds thereafter.
Marine
A storm system will move through the coastal waters late Wednesday through Thursday. Southerly winds Wednesday and Wednesday night will shift to westerly then northwest Thursday, with isolated and occasional wind gusts exceeding 20 knots. There is a 10-20% chance of TSRA Wednesday night through Thursday. No additional hazardous marine conditions are expected Thursday night through Saturday.
Beaches
Southerly swells will continue to bring surf of 3 to 5 feet with sets to 6 feet, highest at south and southwest-facing beaches today. This will bring hazardous swimming conditions for most. While surf and rip currents will be elevated, daily high tides will not be particularly high, and the threat of coastal flooding is minimal. Details are in the Beach Hazards Statement.
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 4Conservative index and reflects what the press published. Terms of use.