Costa Mesa Hourly Weather

Partly cloudy 17°

Partly cloudy, feels like 18°.

Costa Mesa, California, United States · Tuesday, 3 November 2026 19:45 local time

Low/High
12°/24°
Humidity
73%
Visibility
20.5 km
Wind
1.1 km/h
Dew point
13°
UV
0.0

Next 24 Hours

Costa Mesa Hourly Weather — 48 hours ahead

TimeWeatherTemperatureFeels likeRainHumidityWind
Partly cloudy 18°18°0% 70%6 km/h
Partly cloudy 17°18°0% 74%2 km/h
Partly cloudy 17°17°0% 76%2 km/h
Partly cloudy 16°17°0% 77%2 km/h
Partly cloudy 16°16°1% 77%4 km/h
Partly cloudy 16°16°2% 77%3 km/h
Partly cloudy 15°15°3% 78%4 km/h
Mostly clear 15°14°2% 81%7 km/h
Mostly clear 14°14°1% 83%8 km/h
Clear sky 15°14°0% 78%6 km/h
Clear sky 15°15°0% 77%4 km/h
Mostly clear 14°14°0% 80%8 km/h
Mostly clear 15°14°0% 90%7 km/h
Mostly clear 18°19°0% 86%4 km/h
Mostly clear 20°22°0% 76%1 km/h
Mostly clear 21°22°0% 70%5 km/h
Mostly clear 22°23°0% 62%7 km/h
Clear sky 22°23°0% 56%9 km/h
Clear sky 23°23°0% 55%9 km/h
Clear sky 22°22°0% 56%10 km/h
Clear sky 22°21°0% 58%11 km/h
Clear sky 21°21°0% 61%9 km/h
Clear sky 19°20°0% 66%5 km/h
Mostly clear 18°18°0% 69%4 km/h
Clear sky 17°18°0% 72%3 km/h
Clear sky 17°16°0% 74%7 km/h
Overcast 16°16°0% 77%6 km/h
Overcast 15°15°0% 79%7 km/h
Partly cloudy 15°14°0% 81%8 km/h
Partly cloudy 14°14°0% 82%8 km/h
Mostly clear 14°13°0% 83%8 km/h
Overcast 14°13°0% 80%6 km/h
Partly cloudy 14°13°0% 77%4 km/h
Mostly clear 13°13°0% 78%3 km/h
Clear sky 12°11°0% 84%6 km/h
Clear sky 12°11°0% 83%5 km/h
Clear sky 13°12°0% 82%5 km/h
Clear sky 15°15°0% 83%1 km/h
Clear sky 19°19°0% 67%2 km/h
Clear sky 22°21°0% 50%3 km/h
Clear sky 24°24°0% 39%3 km/h
Mostly clear 24°24°0% 47%10 km/h
Overcast 25°24°0% 44%12 km/h
Overcast 25°24°0% 48%13 km/h
Overcast 25°23°0% 45%13 km/h
Overcast 24°22°0% 41%12 km/h
Partly cloudy 24°21°0% 38%12 km/h
Overcast 23°21°0% 39%10 km/h

Summary

Over the next 48 hours in Costa Mesa, temperatures range from 12–25°C. The chance of rain stays low (3% at most).

Updated at 19:48 local time, 3 November 2026

Costa Mesa Hourly Temperature and Chance of Rain

Costa Mesa Air Quality

Moderate · AQI 51

Air quality is acceptable; people who are unusually sensitive should consider limiting prolonged outdoor exertion.

PM2.5 (µg/m³)8.3
PM10 (µg/m³)11
O₃ (µg/m³)83
NO₂ (µg/m³)12
SO₂ (µg/m³)2.0
CO (µg/m³)148

Air Quality →

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