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

Hazardous Weather Conditions

Current conditions at

WHITTIER HILLS (WTHC1)

Lat: 33.984°NLon: 118.00943°WElev: 950.0ft.

NA

90°F

32°C

Humidity 38%
Wind Speed SSW 10 MPH
Barometer NA
Dewpoint 61°F (16°C)
Visibility NA
Heat Index90°F (32°C)
Last update 07 Jul 02:57 PM PDT
Extended Forecast for

3 Miles NW Fullerton Municipal CA

Heat Advisory July 7, 03:20pm until July 10, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 7, 03:20pm until July 10, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. West southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 67. West southwest wind 5 to 10 mph becoming south southeast after midnight.

    Low: 67 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 90 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66.

    Low: 66 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 87.

    High: 87 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 90. Southwest wind around 5 mph.
Tonight
Mostly clear, with a low around 65. West southwest wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 67. West southwest wind 5 to 10 mph becoming south southeast after midnight.
Thursday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Partly sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Fullerton Municipal CA
 33.9°N 118.02°W (Elev. 105 ft)
Last Update:
1:03 pm PDT Jul 7, 2026
Forecast Valid:
3pm PDT Jul 7, 2026-6pm PDT Jul 13, 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