Weather forecast for todayCosta Mesa, CA
Weather forecast for today
Current condition 1:20 am PDT
- 64°F
- Feels like:64°F
Partly Cloudy
- Precipitation: 0"
- Wind: 2mphW 280°
- Humidity: 88%
- Dewpoint: 61°F
- Pressure: 29.87"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Currently, the weather is partly cloudy with occasional clear patches.
The temperature is a comfortable 64.4°F. The current temperature is near the lowest anticipated 62.6°F for today.
The temperature is a comfortable 64.4°F. The current temperature is near the lowest anticipated 62.6°F for today.
Wednesday Oct 21, 2026
- 73°F
- 63°F
PM Rain
- Precip. probability: 89%
- Precipitation: 0"
- Wind: 9mphSSW 194°
- Humidity: 73%
- UV index: 4
- Sunrise: 7:01 am PDT
- Sunset: 6:10 pm PDT
- details ▼
Today, expect rainy conditions as the afternoon unfolds.
Minimal precipitation is predicted. The temperature is anticipated to oscillate between a maximum of a temperate 73.4°F and a minimum of a breezy 62.6°F.
The expected maximum is anticipated to be in line with the regular October temperature of 73°F.
Sunrise will be at 7:01 am and sunset at 6:10 pm; the daylight will last for 11h and 10min.
Minimal precipitation is predicted. The temperature is anticipated to oscillate between a maximum of a temperate 73.4°F and a minimum of a breezy 62.6°F.
The expected maximum is anticipated to be in line with the regular October temperature of 73°F.
Sunrise will be at 7:01 am and sunset at 6:10 pm; the daylight will last for 11h and 10min.
Hourly overview
Hourly temperatures
Warmest period: 11 am - 2 pm 73°C.
Coldest period: 2 am - 5 am 64°C.
Coldest period: 2 am - 5 am 64°C.
Chance of precipitation
Highest chance: 5 pm 64%.
Hourly weather forecast
- 2 am
- 64°F
- Feels like:64°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphNW 323°
- Humidity: 89%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 64°F
- Feels like:64°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphN 10°
- Humidity: 90%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 64°F
- Feels like:64°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphENE 73°
- Humidity: 87%
- Pressure: 29.83"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Sunrise: 7:01 am
- 8 am
- 66°F
- Feels like:66°F
Mostly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphESE 105°
- Humidity: 85%
- Pressure: 29.83"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 10 am
- 72°F
- Feels like:72°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphS 189°
- Humidity: 73%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 12 pm
- 73°F
- Feels like:73°F
Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 9mphSW 221°
- Humidity: 69%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 73°F
- Feels like:73°F
Showers
- Precip. probability: 43%
- Precipitation: 0.04"
- Wind: 9mphSW 217°
- Humidity: 67%
- Pressure: 29.83"Hg
- Visibility: 7mi
- UV index: 3
- details ▼
- 4 pm
- 72°F
- Feels like:72°F
Showers
- Precip. probability: 37%
- Precipitation: 0.04"
- Wind: 7mphSW 220°
- Humidity: 65%
- Pressure: 29.8"Hg
- Visibility: 7mi
- UV index: 1
- details ▼
- 6 pm
- 70°F
- Feels like:70°F
Rain
- Precip. probability: 90%
- Precipitation: 0.12"
- Wind: 7mphS 190°
- Humidity: 73%
- Pressure: 29.8"Hg
- Visibility: 5mi
- UV index: 0
- details ▼
Sunset: 6:10 pm
- 8 pm
- 68°F
- Feels like:68°F
Rain
- Precip. probability: 62%
- Precipitation: 0.04"
- Wind: 5mphSE 138°
- Humidity: 80%
- Pressure: 29.83"Hg
- Visibility: 5mi
- UV index: 0
- details ▼
- 10 pm
- 68°F
- Feels like:68°F
Rain
- Precip. probability: 69%
- Precipitation: 0.12"
- Wind: 5mphSSE 160°
- Humidity: 81%
- Pressure: 29.83"Hg
- Visibility: 5mi
- UV index: 0
- details ▼
Today, in Costa Mesa, a combination of cloudy, rainy and stormy weather is expected.
Rainfall is forecasted from 2 pm to 11 pm. With light precipitation of 0.12", the most intense rain will be falling at 6 pm and 10 pm.
The temperature will be between the highest temperature of 73.4°F and the lowest temperature of 64.4°F. The warmest part of the day will be from 11 am to 2 pm.
The forecasted high will be close to the typical October maximum of 73°F. The night temperature will be also in line with the standard October low of 62.1°F.
Rainfall is forecasted from 2 pm to 11 pm. With light precipitation of 0.12", the most intense rain will be falling at 6 pm and 10 pm.
The temperature will be between the highest temperature of 73.4°F and the lowest temperature of 64.4°F. The warmest part of the day will be from 11 am to 2 pm.
The forecasted high will be close to the typical October maximum of 73°F. The night temperature will be also in line with the standard October low of 62.1°F.
Updated: Oct 21, 2026 @ 08:20:22 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
The current temperature (1:20 am PDT) is 64.4°F.
On Wednesday, in Costa Mesa, cloudy and rainy weather is expected to arrive by the afternoon.
There is a high possibility of rainfall, but with minimal precipitation.
Today, the maximum temperature will be 73.4°F, while the minimum temperature will be 62.6°F.
The highest temperature will be in line with the average maximum of 73°F in October. The lowest temperature will be also in line with the average low of 62.1°F.
The highest temperature will be in line with the average maximum of 73°F in October. The lowest temperature will be also in line with the average low of 62.1°F.
On Wednesday, in Costa Mesa, sunrise will be at 7:01 am and sunset at 6:10 pm (PDT).
In Costa Mesa, California, the length of the day today will be 11h and 10min.
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: 1:20am PDT
- Sunrise: 7:01 am PDT
- Sunset: 6:10 pm PDT
- Timezone: America/Los_Angeles
Nearby Costa Mesa, California, USA
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- Corona Del Mar (4 mi)
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- Anaheim (14 mi)
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California, USA - most visited locations
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