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

WHITTIER HILLS (WTHC1)

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

NA

63°F

17°C

Humidity 93%
Wind Speed SSW 5 MPH
Barometer NA
Dewpoint 61°F (16°C)
Visibility NA
Last update 25 Sep 11:57 PM PDT
Extended Forecast for

2 Miles WSW Diamond Bar CA

  • Overnight

    Overnight: Patchy fog. Otherwise, cloudy, with a low around 63. South wind around 5 mph.

    Low: 63 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. Southwest wind around 5 mph.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog. Otherwise, cloudy, with a low around 63. Southwest wind around 5 mph.

    Low: 63 °F

    Patchy Fog

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 11am. Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 78 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 8pm. Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 79.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 61.

    Low: 61 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 80.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 60.

    Low: 60 °F

    Patchy Fog

Detailed Forecast

Overnight
Patchy fog. Otherwise, cloudy, with a low around 63. South wind around 5 mph.
Friday
Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. Southwest wind around 5 mph.
Friday Night
Patchy fog. Otherwise, cloudy, with a low around 63. Southwest wind around 5 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 11am. Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms before 8pm. Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 79.
Sunday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 61.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 80.
Monday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 60.
Tuesday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 77.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 59.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Diamond Bar CA
 34°N 117.85°W (Elev. 679 ft)
Last Update:
2:08 pm PDT Sep 25, 2025
Forecast Valid:
12am PDT Sep 26, 2025-6pm PDT Oct 2, 2025
 
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