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

Hazardous Weather Conditions

Current conditions at

EW3055 Vista (E3055)

Lat: 33.23533°NLon: 117.23233°WElev: 424.84ft.

NA

84°F

29°C

Humidity 63%
Wind Speed E 0 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 70°F (21°C)
Visibility NA
Heat Index88°F (31°C)
Last update 09 Sep 02:10 AM PDT
Extended Forecast for

3 Miles NNW San Marcos CA

Heat Advisory September 9, 08:00pm until September 10, 08:00pm
Extreme Heat Warning September 9, 02:21am until September 9, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Extreme Heat Warning September 9, 02:21am until September 9, 08:00pm

    NOW until 8:00pm Wed

    Extreme Heat Warning

  • Overnight

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 100. Heat index values as high as 107. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 100 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75. West wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 92. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71. South wind around 5 mph becoming calm.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

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

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81.

    High: 81 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 77. Calm wind.
Wednesday
Sunny, with a high near 100. Heat index values as high as 107. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 75. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 92. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 71. South wind around 5 mph becoming calm.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 66.
Saturday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW San Marcos CA
 33.17°N 117.19°W (Elev. 692 ft)
Last Update:
1:36 am PDT Sep 9, 2026
Forecast Valid:
2am PDT Sep 9, 2026-6pm PDT Sep 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation