National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

EW4858 El Cajon (E4858)

Lat: 32.8005°NLon: 116.92867°WElev: 507.28ft.

NA

79°F

26°C

Humidity 78%
Wind Speed N 0 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 72°F (22°C)
Visibility NA
Heat Index82°F (28°C)
Last update 27 Aug 09:00 AM PDT
Extended Forecast for

El Cajon CA

Extreme Heat Warning August 27, 09:18am until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 27, 09:18am until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Today

    High: 100 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 101. Heat index values as high as 106. Light west wind increasing to 5 to 10 mph in the morning.

    High: 101 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. West wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 100. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 100 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny, with a high near 100. Light west wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Partly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 101. Heat index values as high as 106. Light west wind increasing to 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 73. West wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 100. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 66.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 66.
Tuesday
A slight chance of showers. Sunny, with a high near 89.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 67.
Wednesday
Partly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
El Cajon CA
 32.79°N 116.95°W (Elev. 505 ft)
Last Update:
12:59 am PDT Aug 27, 2026
Forecast Valid:
9am PDT Aug 27, 2026-6pm PDT Sep 2, 2026
 
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Additional Resources

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Chance of Precipitation