Support Time.now: Join our Premium Plan for an ad-free experience! Support Us: Go Premium Ad-Free!

Weather in Rancho Santa Margarita, United States 🇺🇸

Weather Forecast in Rancho Santa Margarita

Current Weather in Rancho Santa Margarita

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:

In Rancho Santa Margarita right now it is 24°C and partly cloudy, feeling like 26°C. Humidity sits at 71% and winds are near 6 km/h, and the UV index is 0 (low). The next few days in Rancho Santa Margarita look set for about 18°C up 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 Rancho Santa Margarita

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 Rancho Santa Margarita

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 Rancho Santa Margarita

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

Weather Forecasts for Other Cities in United States

Browse Weather in United States by cities in alphabetical order:

A B C D E F G H I J K L M N O P Q R S T V W

Weather in United States ›

Best Time to Be Outside in Rancho Santa Margarita Tomorrow

There is no good daylight window left in Rancho Santa Margarita 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 Rancho Santa Margarita

What is the temperature in Rancho Santa Margarita right now?

The current temperature in Rancho Santa Margarita is 24°C (76°F), partly cloudy (feels like 26°C).

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

Current weather in Rancho Santa Margarita: Partly cloudy, humidity 71%, wind 6 km/h SSW.

What is today's forecast for Rancho Santa Margarita?

Today in Rancho Santa Margarita: high 37°C, low 19°C, sunny. Chance of rain: 17%.

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

Daily highs and lows for Rancho Santa Margarita:

  • 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 Rancho Santa Margarita today?

There is a 17% chance of rain in Rancho Santa Margarita today. Total expected precipitation: 0.09 mm.

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

Wind in Rancho Santa Margarita is currently 6 km/h (4 mph) from the SSW.

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.

Weather forecasts for other major cities in 🇺🇸 United States: New York City · Los Angeles · Brooklyn · Chicago · Houston · Queens · Phoenix · Philadelphia · Manhattan · San Antonio · San Diego · The Bronx · Dallas · Jacksonville · Austin · Fort Worth · Columbus · Indianapolis · Charlotte · San Francisco · Seattle · Denver · Washington, D.C. · Washington · Nashville · El Paso · Oklahoma City · Detroit · Boston · Portland · New South Memphis · Memphis · Las Vegas · Milwaukee · Baltimore · South Boston · Albuquerque · Tucson · Fresno · Sacramento · Omaha · Kansas City · Long Beach · Mesa · Staten Island · Atlanta · Colorado Springs · Virginia Beach · Raleigh · Miami