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Weather in El Cajon, United States 🇺🇸

Weather Forecast in El Cajon

Current Weather in El Cajon

Heat Advisory issued July 7 at 9:50PM PDT until July 9 at 8:00PM PDT by NWS San Diego CA
Sunny
22°C
Feels like 24°C. Sunny.
🌬️ 10 km/h WSW
💧 73% Humidity
🧭 1015 hPa
👁️ 16.0 km Visibility
☀️ UV Index: 9.4
🌡️ Dew Point: 20°C
🌅 Sunrise: 05:46 AM
🌇 Sunset: 07:59 PM
Map Overlays:

In El Cajon right now it is 22°C and sunny, feeling like 24°C. Humidity is 73% with winds around 10 km/h, and the UV index is 9 (very high). Over the next few days, temperatures in El Cajon range from about 16°C to 35°C. ⚠️ Heat Advisory issued July 7 at 9:50PM PDT until July 9 at 8:00PM PDT by NWS San Diego CA

Hourly Forecast for El Cajon

12:00
Sunny
33°
1%
13:00
Sunny
34°
1%
14:00
Sunny
35°
1%
15:00
Sunny
35°
1%
16:00
Sunny
33°
1%
17:00
Sunny
31°
1%
18:00
Sunny
28°
2%
19:00
Sunny
26°
3%
20:00
Clear
23°
4%
21:00
Clear
21°
6%
22:00
Clear
20°
8%
23:00
Clear
21°
4%
00:00
Clear
21°
4%
01:00
Clear
20°
5%
02:00
Clear
20°
5%
03:00
Clear
19°
5%
04:00
Clear
19°
6%
05:00
Clear
18°
6%
06:00
Sunny
18°
6%
07:00
Sunny
22°
3%
08:00
Sunny
25°
2%
09:00
Sunny
26°
1%
10:00
Sunny
28°
1%
11:00
Sunny
29°
1%

14-Day Forecast for El Cajon

Wed, Jul 08
Sunny Sunny
35° / 16°
Thu, Jul 09
Sunny Sunny
30° / 18°
Fri, Jul 10
Sunny Sunny
31° / 18°
Sat, Jul 11
Sunny Sunny
29° / 18°
Sun, Jul 12
Sunny Sunny
29° / 20°
Mon, Jul 13
Sunny Sunny
29° / 20°
Tue, Jul 14
Sunny Sunny
33° / 20°
Wed, Jul 15
Sunny Sunny
34° / 23°
Thu, Jul 16
Sunny Sunny
37° / 25°
Fri, Jul 17
Sunny Sunny
38° / 27°
Sat, Jul 18
Sunny Sunny
34° / 26°
Sun, Jul 19
Sunny Sunny
36° / 28°
Mon, Jul 20
Sunny Sunny
32° / 25°
Tue, Jul 21
Sunny Sunny
34° / 24°

Additional Forecasts for El Cajon

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 123.0 μg/m³
O₃ (Ozone) 108.0 μg/m³
NO₂ (Nitrogen Dioxide) 4.5 μg/m³
SO₂ (Sulphur Dioxide) 1.6 μg/m³
PM2.5 (Fine particles) 10.0 μg/m³
PM10 (Coarse particles) 13.7 μg/m³

Historical Weather

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Best Time to Be Outside in El Cajon Today

The most comfortable window in El Cajon today looks like 19:00 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 El Cajon

What is the temperature in El Cajon right now?

The current temperature in El Cajon is 22°C (72°F), sunny (feels like 24°C).

What's the weather like in El Cajon right now?

Conditions in El Cajon right now: Sunny, humidity 73%, wind 10 km/h WSW.

What is today's forecast for El Cajon?

Today in El Cajon: high 35°C, low 16°C, sunny. Chance of rain: 5%.

What is the 7-day weather forecast for El Cajon?

Daily highs and lows for El Cajon:

  • 2026-07-08: 35°C / 16°C
  • 2026-07-09: 30°C / 18°C
  • 2026-07-10: 31°C / 18°C
  • 2026-07-11: 29°C / 18°C
  • 2026-07-12: 29°C / 20°C
  • 2026-07-13: 29°C / 20°C
  • 2026-07-14: 33°C / 20°C
Is it going to rain in El Cajon today?

There is a 5% chance of rain in El Cajon today.

What is the wind speed in El Cajon right now?

Wind in El Cajon is currently 10 km/h (6 mph) from the WSW.

What is the UV index in El Cajon right now?

The UV index in El Cajon is currently 9.4 (very high). Sun protection is recommended when the index is 3 or higher.

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