Costa Mesa Weather Today

Temperature, Feels Like, Rain Chance & Hourly Forecast in Costa Mesa

Costa Mesa temperature today is 19°, feels like 20°, with a humidity level of 90% and wind at 7.42 km/h. Rain chance today is 0%. Use the hourly forecast and 5-day outlook below to plan your day.

Tomorrow in Costa Mesa: expect a high of 31° and a low of 18°, with broken clouds.

clear sky
19°
clear sky
H: 20° L: 18°
Feels like 20°
AQI: Fair (2/5)
Humidity
90%
Dew 18°
Wind speed
7.42 km/h
ENE
Pressure
1008 hPa
Visibility
10 km
High Humidity
Humidity is 90%. May feel uncomfortable.
Weather Summary
Currently in Costa Mesa, expect varied conditions with mild temperatures around 19°. Winds are a light breeze. High humidity may make it feel uncomfortable.
Precipitation Probability
0%
08
0%
11
0%
14
0%
17
0%
20
0%
23
0%
02
0%
05
0%
08
0%
11
0%
14
0%
17
0%
20
0%
23
0%
02
0%
05
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
22°
Wed
08:00
27°
 
29°
 
26°
 
22°
Wed
20:00
20°
 
19°
 
18°
 
21°
Thu
08:00
28°
 
31°
 
29°
 
23°
Thu
20:00
22°
 
21°
 
19°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:45
Sunset
Sunset
18:37
Moon Phase
Waning Gibbous (69%)
Timezone: GMT+05:30
Last updated: Sep 30, 2026 6:07 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
33.641129
Longitude
Longitude
-117.918671
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More about Costa Mesa
Content curated by the NearWeather editorial team · Updated periodically
Costa Mesa is a city in the US state of California. It is located in Orange County and lies between Los Angeles and San Diego. Costa Mesa has a Mediterranean climate, with warm to hot summers and mild winters. Average temperatures range from 63°F (17°C) in January to 79°F (26°C) in August. The city also receives plenty of sunshine, with an average of 263 sunny days per year. Precipitation levels are low, with an average of just 12 inches (30 cm) of rain annually.
Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about Costa Mesa
What is the temperature in Costa Mesa right now?

The current temperature in Costa Mesa is 19°, and it feels like 20°. Today's high is 20° and the low is 18°.

Will it rain in Costa Mesa today?

No rain is expected in Costa Mesa today (0% chance). Conditions are currently clear sky.

What is the weather in Costa Mesa today?

Costa Mesa is experiencing clear sky with a temperature of 19°. Humidity is at 90% and wind speed is 7.42 km/h from the ENE.

What is the humidity in Costa Mesa today?

Humidity in Costa Mesa is 90% right now, with a dew point of 18°. Conditions may feel muggy or uncomfortable.

What is the wind speed in Costa Mesa today?

Wind speed in Costa Mesa is 7.42 km/h, flowing at 70° ENE wind direction.

What is the 5-day forecast for Costa Mesa?

NearWeather provides a detailed 5-day forecast and 48-hour hourly forecast for Costa Mesa. Today's high is 20° and low is 18°, with a 0% chance of rain. Scroll up to view the full day-by-day and hourly breakdown.

What does it feel like in Costa Mesa today?

It feels like 20° in Costa Mesa today, with 6% cloud cover and 10 km visibility.

Weather in Costa Mesa