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Weather in Rancho Santa Margarita, United States 🇺🇸

Current Weather in Rancho Santa Margarita

Heat Advisory issued September 7 at 11:09AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA
Patchy rain nearby
23°C
Feels like 23°C. Patchy rain nearby.
🌬️ 8 km/h WNW
💧 65% Humidity
🧭 1011 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: 16°C
🌅 Sunrise: 06:29 AM
🌇 Sunset: 07:07 PM
Map Overlays:
Temperature Precipitation Pressure Wind Speed Clear

In Rancho Santa Margarita right now it is 23°C and patchy rain nearby, feeling like 23°C. Relative humidity is 65%, with winds around 8 km/h, and the UV index is 0 (low). Across the coming days, Rancho Santa Margarita should see roughly 23°C to 28°C. ⚠️ Heat Advisory issued September 7 at 11:09AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA

Hourly Forecast for Rancho Santa Margarita

05:00
Light drizzle
23°
36%
06:00
Light drizzle
24°
36%
07:00
Light drizzle
24°
36%
08:00
Light drizzle
26°
36%
09:00
Light drizzle
28°
36%
10:00
Partly Cloudy
26°
6%
11:00
Sunny
26°
4%
12:00
Sunny
26°
4%
13:00
Patchy rain nearby
27°
14%
14:00
Patchy rain nearby
26°
14%
15:00
Cloudy
26°
9%
16:00
Partly Cloudy
26°
5%
17:00
Patchy rain nearby
26°
16%
18:00
Overcast
26°
15%
19:00
Overcast
25°
15%
20:00
Overcast
25°
15%
21:00
Overcast
25°
16%
22:00
Overcast
25°
16%
23:00
Overcast
24°
16%
00:00
Overcast
24°
17%
01:00
Overcast
24°
17%
02:00
Cloudy
24°
13%
03:00
Cloudy
24°
15%
04:00
Cloudy
24°
14%

14-Day Forecast for Rancho Santa Margarita

Tue, Sep 08
Light drizzle Light drizzle
28° / 23°
Wed, Sep 09
Sunny Sunny
26° / 24°
Thu, Sep 10
Sunny Sunny
24° / 23°
Fri, Sep 11
Sunny Sunny
23° / 21°
Sat, Sep 12
Partly Cloudy Partly Cloudy
22° / 20°
Sun, Sep 13
Sunny Sunny
21° / 20°
Mon, Sep 14
Sunny Sunny
21° / 20°
Tue, Sep 15
Sunny Sunny
21° / 20°
Wed, Sep 16
Sunny Sunny
21° / 20°
Thu, Sep 17
Sunny Sunny
21° / 20°
Fri, Sep 18
Sunny Sunny
22° / 20°
Sat, Sep 19
Sunny Sunny
21° / 19°
Sun, Sep 20
Sunny Sunny
20° / 19°
Mon, Sep 21
Sunny Sunny
21° / 18°

Additional Forecasts for Rancho Santa Margarita

Air Quality

💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 140.0 μg/m³
NO₂ (Nitrogen Dioxide) 64.8 μg/m³
SO₂ (Sulphur Dioxide) 4.1 μg/m³
PM2.5 (Fine particles) 18.2 μg/m³
PM10 (Coarse particles) 18.4 μg/m³

Historical Weather

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Best Time to Be Outside in Rancho Santa Margarita Today

The most comfortable window in Rancho Santa Margarita today looks like 16:00 to 19:00, when it is around 26°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Rancho Santa Margarita

What is the temperature in Rancho Santa Margarita right now?

The current temperature in Rancho Santa Margarita is 23°C (73°F), patchy rain nearby (feels like 23°C).

What's the weather like in Rancho Santa Margarita right now?

Current weather in Rancho Santa Margarita: Patchy rain nearby, humidity 65%, wind 8 km/h WNW.

What is today's forecast for Rancho Santa Margarita?

Today in Rancho Santa Margarita: high 28°C, low 23°C, light drizzle. Chance of rain: 64%.

What is the 7-day weather forecast for Rancho Santa Margarita?

Daily highs and lows for Rancho Santa Margarita:

  • 2026-09-08: 28°C / 23°C
  • 2026-09-09: 26°C / 24°C
  • 2026-09-10: 24°C / 23°C
  • 2026-09-11: 23°C / 21°C
  • 2026-09-12: 22°C / 20°C
  • 2026-09-13: 21°C / 20°C
  • 2026-09-14: 21°C / 20°C
Is it going to rain in Rancho Santa Margarita today?

There is a 64% chance of rain in Rancho Santa Margarita today. Total expected precipitation: 3.26 mm.

What is the wind speed in Rancho Santa Margarita right now?

Wind in Rancho Santa Margarita is currently 8 km/h (5 mph) from the WNW.

What is the UV index in Rancho Santa Margarita right now?

The UV index in Rancho Santa Margarita is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

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