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Weather in Rancho San Diego, United States 🇺🇸

Current Weather in Rancho San Diego

Coastal Flood Advisory issued September 7 at 1:40AM PDT until September 8 at 11:00PM PDT by NWS San Diego CA
Overcast
38°C
Feels like 37°C. Overcast.
🌬️ 13 km/h WNW
💧 28% Humidity
🧭 1011 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 8.1
🌡️ Dew Point: 16°C
🌅 Sunrise: 06:26 AM
🌇 Sunset: 07:05 PM
Map Overlays:

As of now, Rancho San Diego is 38°C and overcast, feeling like 37°C. Humidity is 28% with winds around 13 km/h, and the UV index is 8 (very high). Looking ahead, Rancho San Diego should sit between roughly 24°C and 38°C over the coming days. ⚠️ Coastal Flood Advisory issued September 7 at 1:40AM PDT until September 8 at 11:00PM PDT by NWS San Diego CA

Hourly Forecast for Rancho San Diego

15:00
Overcast
37°
9%
16:00
Cloudy
35°
5%
17:00
Sunny
36°
1%
18:00
Sunny
32°
1%
19:00
Overcast
30°
10%
20:00
Overcast
29°
10%
21:00
Overcast
28°
11%
22:00
Cloudy
29°
7%
23:00
Overcast
28°
10%
00:00
Cloudy
28°
8%
01:00
Partly Cloudy
27°
6%
02:00
Cloudy
27°
8%
03:00
Overcast
27°
11%
04:00
Overcast
27°
12%
05:00
Overcast
27°
10%
06:00
Overcast
27°
10%
07:00
Cloudy
27°
8%
08:00
Sunny
28°
2%
09:00
Sunny
29°
1%
10:00
Sunny
31°
1%
11:00
Sunny
33°
1%
12:00
Sunny
34°
1%
13:00
Partly Cloudy
35°
2%
14:00
Sunny
35°
1%

14-Day Forecast for Rancho San Diego

Mon, Sep 07
Overcast Overcast
38° / 24°
Tue, Sep 08
Sunny Sunny
35° / 27°
Wed, Sep 09
Sunny Sunny
36° / 27°
Thu, Sep 10
Sunny Sunny
32° / 25°
Fri, Sep 11
Sunny Sunny
30° / 23°
Sat, Sep 12
Sunny Sunny
25° / 20°
Sun, Sep 13
Sunny Sunny
26° / 19°
Mon, Sep 14
Sunny Sunny
26° / 20°
Tue, Sep 15
Sunny Sunny
28° / 20°
Wed, Sep 16
Sunny Sunny
29° / 23°
Thu, Sep 17
Sunny Sunny
30° / 23°
Fri, Sep 18
Sunny Sunny
30° / 23°
Sat, Sep 19
Sunny Sunny
29° / 23°
Sun, Sep 20
Sunny Sunny
27° / 22°

Additional Forecasts for Rancho San Diego

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 116.0 μg/m³
O₃ (Ozone) 77.0 μg/m³
NO₂ (Nitrogen Dioxide) 1.8 μg/m³
SO₂ (Sulphur Dioxide) 0.8 μg/m³
PM2.5 (Fine particles) 3.8 μg/m³
PM10 (Coarse particles) 5.0 μg/m³

Historical Weather

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Best Time to Be Outside in Rancho San Diego Today

The most comfortable window in Rancho San Diego today looks like 17:00 to 20:00, when it is around 33°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 San Diego

What is the temperature in Rancho San Diego right now?

Rancho San Diego is sitting at 38°C (100°F) right now, overcast (feels like 37°C).

What's the weather like in Rancho San Diego right now?

Conditions in Rancho San Diego right now: Overcast, humidity 28%, wind 13 km/h WNW.

What is today's forecast for Rancho San Diego?

Today in Rancho San Diego: high 38°C, low 24°C, overcast. Chance of rain: 5%.

What is the 7-day weather forecast for Rancho San Diego?

Daily highs and lows for Rancho San Diego:

  • 2026-09-07: 38°C / 24°C
  • 2026-09-08: 35°C / 27°C
  • 2026-09-09: 36°C / 27°C
  • 2026-09-10: 32°C / 25°C
  • 2026-09-11: 30°C / 23°C
  • 2026-09-12: 25°C / 20°C
  • 2026-09-13: 26°C / 19°C
Is it going to rain in Rancho San Diego today?

There is a 5% chance of rain in Rancho San Diego today.

What is the wind speed in Rancho San Diego right now?

Wind in Rancho San Diego is currently 13 km/h (8 mph) from the WNW.

What is the UV index in Rancho San Diego right now?

The UV index in Rancho San Diego is currently 8.1 (very high). Sun protection is recommended when the index is 3 or higher.

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