Westmont, CA Weather Forecast
Local 7-day forecast
Patchy Fog then Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Westmont, CA in one place.
Patchy fog before 11am. Partly sunny, with a high near 80. South wind around 10 mph.
Local Weather Overview
This forecast page for Westmont, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 11:37 AM PDT.
The active forecast window currently covers Jul 17 to Jul 23, 2026 for Westmont, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 11:37 AM PDT
- Forecast office
- LOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Westmont
Wednesday looks like the warmest upcoming period in Westmont at 82 degrees F.
Sunday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Tuesday at about 0 to 15 mph SSW.
The forecast from Jul 17 through Jul 23 stays mostly dry.
Forecast Details
- Last updated
- Jul 17, 2026 11:37 AM PDT
- Coverage
- 8 days
- Time zone
- America/Los_Angeles
- Forecast office
- LOX
- Radar station
- KSOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy fog after 11pm. Mostly cloudy, with a low around 69. South wind 5 to 10 mph.
Patchy fog before 11am. Mostly sunny, with a high near 80. South southwest wind 5 to 10 mph.
Patchy fog after 11pm. Mostly cloudy, with a low around 68. South southwest wind 0 to 10 mph.
Patchy fog before 11am. Mostly sunny, with a high near 80. South southwest wind 0 to 10 mph.
Patchy fog after 11pm. Mostly cloudy, with a low around 67.
Patchy fog before 11am. Mostly sunny, with a high near 80.
Partly cloudy, with a low around 68.
Mostly sunny, with a high near 80.
Partly cloudy, with a low around 68.
Mostly sunny, with a high near 82.
Partly cloudy, with a low around 70.
Mostly sunny, with a high near 82.
Partly cloudy, with a low around 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 17
|
Patchy Fog then Partly Sunny
|
80°F |
10 mph
S
|
|
Tonight
Jul 17
|
Patchy Fog
|
69°F |
5 to 10 mph
S
|
|
Saturday
Jul 18
|
Patchy Fog then Mostly Sunny
|
80°F |
5 to 10 mph
SSW
|
|
Saturday Night
Jul 18
|
Patchy Fog
|
68°F |
0 to 10 mph
SSW
|
|
Sunday
Jul 19
|
Patchy Fog then Mostly Sunny
|
80°F |
0 to 10 mph
SSW
|
|
Sunday Night
Jul 19
|
Patchy Fog
|
67°F |
0 to 10 mph
SSW
|
|
Monday
Jul 20
|
Patchy Fog then Mostly Sunny
|
80°F |
0 to 10 mph
S
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
68°F |
0 to 10 mph
SSW
|
|
Tuesday
Jul 21
|
Mostly Sunny
|
80°F |
0 to 15 mph
SSW
|
|
Tuesday Night
Jul 21
|
Partly Cloudy
|
68°F |
0 to 15 mph
SSW
|
|
Wednesday
Jul 22
|
Mostly Sunny
|
82°F |
0 to 10 mph
SSW
|
|
Wednesday Night
Jul 22
|
Partly Cloudy
|
70°F |
0 to 10 mph
SSW
|
|
Thursday
Jul 23
|
Mostly Sunny
|
82°F |
0 to 10 mph
SSW
|
|
Thursday Night
Jul 23
|
Partly Cloudy
|
69°F |
0 to 10 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Westmont.
