Weather forecast for todayCosta Mesa, CA
Weather forecast for today
Current condition 9:47 am PDT
- 81°F
- Feels like:81°F
Sunny
- Precipitation: 0"
- Wind: 3mphSSW 210°
- Humidity: 30%
- Dewpoint: 46°F
- Pressure: 30.01"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
Currently, in Costa Mesa, the sun is shining brightly, creating a warm atmosphere.
The temperature is a temperate 80.6°F. The current temperature is a few degrees off the today's maximum of 87.8°F.
The temperature is a temperate 80.6°F. The current temperature is a few degrees off the today's maximum of 87.8°F.
Saturday Oct 17, 2026
- 88°F
- 66°F
Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphS 180°
- Humidity: 25%
- UV index: 5
- Sunrise: 6:58 am PDT
- Sunset: 6:15 pm PDT
- details ▼
Today, on Saturday, October 17, cloud coverage will be extensive.
Predicted temperature values will span from a blazing 87.8°F down to a comfortable 66.2°F.
The higher temperature of 87.8°F is more typical of September than October.
Sunrise was at 6:58 am and sunset will be at 6:15 pm; the daylight will last for 11h and 17min.
Predicted temperature values will span from a blazing 87.8°F down to a comfortable 66.2°F.
The higher temperature of 87.8°F is more typical of September than October.
Sunrise was at 6:58 am and sunset will be at 6:15 pm; the daylight will last for 11h and 17min.
Hourly overview
Hourly temperatures
Warmest hour: 2 pm 88°C.
Coldest hour: 12 am 73°C.
Coldest hour: 12 am 73°C.
Chance of precipitation
Highest chance: 12 pm 3%.
Hourly weather forecast
- 10 am
- 81°F
- Feels like:81°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphE 97°
- Humidity: 28%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 11 am
- 84°F
- Feels like:84°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 5mphESE 114°
- Humidity: 25%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 5
- details ▼
- 12 pm
- 84°F
- Feels like:84°F
Mostly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphSSE 162°
- Humidity: 26%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 5
- details ▼
- 1 pm
- 86°F
- Feels like:86°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSE 152°
- Humidity: 20%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 5
- details ▼
- 2 pm
- 88°F
- Feels like:88°F
Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 8mphSSW 200°
- Humidity: 21%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 3 pm
- 86°F
- Feels like:86°F
Mostly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSW 221°
- Humidity: 25%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 86°F
- Feels like:86°F
Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSW 227°
- Humidity: 26%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 5 pm
- 84°F
- Feels like:84°F
Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSW 223°
- Humidity: 27%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 pm
- 82°F
- Feels like:82°F
Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSSW 214°
- Humidity: 34%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:15 pm
- 7 pm
- 81°F
- Feels like:81°F
Mostly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 5mphSW 224°
- Humidity: 36%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 77°F
- Feels like:77°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphWSW 236°
- Humidity: 41%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 pm
- 77°F
- Feels like:77°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphW 260°
- Humidity: 44%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 75°F
- Feels like:75°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphSW 230°
- Humidity: 44%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 11 pm
- 75°F
- Feels like:75°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphW 268°
- Humidity: 47%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Today, primarily cloudy and occasionally mostly clear weather is forecasted.
The temperature will be between a maximum of 87.8°F and a minimum of 75.2°F. The hottest part of the day is anticipated around 2 pm.
The highest temperature today will resemble September's average maximum of 76.1°F more than October's average. The nighttime low will be a few degrees higher than the typical October minimum temperature of 62.1°F.
The temperature will be between a maximum of 87.8°F and a minimum of 75.2°F. The hottest part of the day is anticipated around 2 pm.
The highest temperature today will resemble September's average maximum of 76.1°F more than October's average. The nighttime low will be a few degrees higher than the typical October minimum temperature of 62.1°F.
Updated: Oct 17, 2026 @ 16:47:37 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
At 9:47 am PDT, the temperature is 80.6°F.
On Saturday, heavy clouds will be present throughout the day.
Today, the highest temperature will be 87.8°F, while the lowest temperature will be 66.2°F.
The maximum temperature today will be significantly higher than the average highest temperature of 73°F in October. The lowest temperature will be slightly warmer than the average low of 62.1°F.
The maximum temperature today will be significantly higher than the average highest temperature of 73°F in October. The lowest temperature will be slightly warmer than the average low of 62.1°F.
On Saturday, in Costa Mesa, sunrise was at 6:58 am and sunset will be at 6:15 pm (PDT).
In Costa Mesa, the length of the day today will be 11h and 17min.
Costa Mesa, California, USA
- en: Costa Mesa, California, USA
- es: Costa Mesa, California, EE.UU.
- hr: Kosta Mesa, Kalifornija, SAD
- mk: Kosta Mesa, Kalifornija, SAD
- sr: Kosta Mesa, Kalifornija, SAD
- zh: 科斯塔梅萨, 加利福尼亚州, 美国
- Latitude: 33.641132°
- Longitude: -117.918669°
- Elevation: 98 ft
- Current time: 10:47am PDT
- Sunrise: 6:58 am PDT
- Sunset: 6:15 pm PDT
- Timezone: America/Los_Angeles
Nearby Costa Mesa, California, USA
- Newport Beach (2 mi)
- Corona Del Mar (4 mi)
- Huntington Beach (5 mi)
- Fountain Valley (5 mi)
- Newport Coast (6 mi)
- Irvine (7 mi)
- Santa Ana (8 mi)
- Midway City (8 mi)
- Westminster (9 mi)
- Tustin (9 mi)
- Garden Grove (9 mi)
- East Irvine (9 mi)
- Laguna Beach (11 mi)
- Sunset Beach (11 mi)
- North Tustin (11 mi)
- Surfside (11 mi)
- Laguna Woods (11 mi)
- Stanton (12 mi)
- Aliso Viejo (12 mi)
- Seal Beach (13 mi)
- Lake Forest (13 mi)
- Laguna Hills (13 mi)
- Anaheim (14 mi)
- Villa Park (14 mi)
California, USA - most visited locations
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