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Weather in Mission Viejo, United States 🇺🇸

Weather Forecast in Mission Viejo

Current Weather in Mission Viejo

Heat Advisory issued July 20 at 12:11PM PDT until July 27 at 8:00PM PDT by NWS San Diego CA
Partly cloudy
24°C
Feels like 26°C. Partly cloudy.
🌬️ 6 km/h SSW
💧 71% Humidity
🧭 1012 hPa
👁️ 16.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: 17°C
🌅 Sunrise: 05:54 AM
🌇 Sunset: 07:59 PM
Map Overlays:

Right now Mission Viejo is 24°C with partly cloudy, feeling like 26°C. Expect 71% humidity and winds of about 6 km/h, and the UV index is 0 (low). Across the coming days, Mission Viejo should see roughly 18°C to 37°C. ⚠️ Heat Advisory issued July 20 at 12:11PM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

Hourly Forecast for Mission Viejo

21:00
Clear
24°
5%
22:00
Clear
22°
7%
23:00
Clear
21°
9%
00:00
Clear
20°
11%
01:00
Clear
20°
14%
02:00
Mist
19°
20%
03:00
Mist
19°
26%
04:00
Mist
19°
19%
05:00
Mist
19°
16%
06:00
Sunny
18°
16%
07:00
Partly Cloudy
20°
22%
08:00
Partly Cloudy
22°
12%
09:00
Sunny
24°
6%
10:00
Sunny
26°
4%
11:00
Sunny
27°
2%
12:00
Sunny
28°
2%
13:00
Sunny
28°
2%
14:00
Sunny
28°
2%
15:00
Sunny
28°
1%
16:00
Sunny
28°
1%
17:00
Sunny
27°
1%
18:00
Sunny
26°
1%
19:00
Sunny
26°
2%
20:00
Clear
24°
3%

14-Day Forecast for Mission Viejo

Mon, Jul 20
Sunny Sunny
37° / 19°
Tue, Jul 21
Sunny Sunny
28° / 18°
Wed, Jul 22
Sunny Sunny
28° / 20°
Thu, Jul 23
Sunny Sunny
31° / 20°
Fri, Jul 24
Sunny Sunny
31° / 21°
Sat, Jul 25
Sunny Sunny
32° / 21°
Sun, Jul 26
Sunny Sunny
32° / 22°
Mon, Jul 27
Sunny Sunny
31° / 22°
Tue, Jul 28
Sunny Sunny
30° / 21°
Wed, Jul 29
Sunny Sunny
30° / 21°
Thu, Jul 30
Sunny Sunny
31° / 22°
Fri, Jul 31
Sunny Sunny
30° / 20°
Sat, Aug 01
Sunny Sunny
29° / 19°
Sun, Aug 02
Sunny Sunny
30° / 19°

Additional Forecasts for Mission Viejo

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 114.0 μg/m³
O₃ (Ozone) 75.0 μg/m³
NO₂ (Nitrogen Dioxide) 7.3 μg/m³
SO₂ (Sulphur Dioxide) 1.0 μg/m³
PM2.5 (Fine particles) 8.6 μg/m³
PM10 (Coarse particles) 12.0 μg/m³

Historical Weather

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Best Time to Be Outside in Mission Viejo Tomorrow

There is no good daylight window left in Mission Viejo today. Tomorrow, the most comfortable window looks like 08:00 to 10:00, when it is around 24°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Mission Viejo

What is the temperature in Mission Viejo right now?

The current temperature in Mission Viejo is 24°C (75°F), partly cloudy (feels like 26°C).

What's the weather like in Mission Viejo right now?

Conditions in Mission Viejo right now: Partly cloudy, humidity 71%, wind 6 km/h SSW.

What is today's forecast for Mission Viejo?

Today in Mission Viejo: high 37°C, low 19°C, sunny. Chance of rain: 17%.

What is the 7-day weather forecast for Mission Viejo?

Daily highs and lows for Mission Viejo:

  • 2026-07-20: 37°C / 19°C
  • 2026-07-21: 28°C / 18°C
  • 2026-07-22: 28°C / 20°C
  • 2026-07-23: 31°C / 20°C
  • 2026-07-24: 31°C / 21°C
  • 2026-07-25: 32°C / 21°C
  • 2026-07-26: 32°C / 22°C
Is it going to rain in Mission Viejo today?

There is a 17% chance of rain in Mission Viejo today. Total expected precipitation: 0.09 mm.

What is the wind speed in Mission Viejo right now?

Wind in Mission Viejo is currently 6 km/h (4 mph) from the SSW.

What is the UV index in Mission Viejo right now?

The UV index in Mission Viejo is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

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