Weather forecast for 10 daysWestminster, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 86°F
- 63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSW 231°
- Humidity: 30%
- UV index: 6
- Sunrise: 6:59 am PDT
- Sunset: 6:14 pm PDT
- details ▼
Today, in Westminster, sunshine and minimal clouds are in the outlook.
The temperature will fluctuate from a high of a hot 86°F to a low of an enjoyable 62.6°F.
The expected high of 86°F appears seasonally off, better matching September's typical values.
Sunrise was at 6:59 am and sunset will be at 6:14 pm; the daylight will last for 11h and 15min.
The temperature will fluctuate from a high of a hot 86°F to a low of an enjoyable 62.6°F.
The expected high of 86°F appears seasonally off, better matching September's typical values.
Sunrise was at 6:59 am and sunset will be at 6:14 pm; the daylight will last for 11h and 15min.
10-day overview
Daily temperatures
Warmest day: today 86°C.
Coldest day: Thursday 72°C.
Coldest day: Thursday 72°C.
Chance of precipitation
Highest chance: Wednesday 85%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 86°F
- 63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSW 231°
- Humidity: 30%
- UV index: 6
- Sunrise: 6:59 am PDT
- Sunset: 6:14 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 82°F
- 63°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 9mphS 180°
- Humidity: 59%
- UV index: 6
- Sunrise: 7:00 am PDT
- Sunset: 6:13 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 79°F
- 63°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 9mphS 180°
- Humidity: 66%
- UV index: 6
- Sunrise: 7:01 am PDT
- Sunset: 6:12 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 75°F
- 61°F
Rain
- Precip. probability: 85%
- Precipitation: 0.55"
- Wind: 10mphSSE 160°
- Humidity: 70%
- UV index: 4
- Sunrise: 7:01 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 72°F
- 57°F
Scattered Thunderstorms
- Precip. probability: 63%
- Precipitation: 0.12"
- Wind: 9mphSSW 196°
- Humidity: 67%
- UV index: 5
- Sunrise: 7:02 am PDT
- Sunset: 6:09 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 75°F
- 61°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphSSW 210°
- Humidity: 57%
- UV index: 5
- Sunrise: 7:03 am PDT
- Sunset: 6:08 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 82°F
- 61°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphWNW 286°
- Humidity: 45%
- UV index: 5
- Sunrise: 7:04 am PDT
- Sunset: 6:07 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 81°F
- 61°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphSSW 192°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:05 am PDT
- Sunset: 6:06 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 79°F
- 59°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 9mphS 191°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:06 am PDT
- Sunset: 6:05 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 77°F
- 59°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 8mphS 184°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:07 am PDT
- Sunset: 6:04 pm PDT
- details ▼
An unsettled pattern is expected over the next ten days, and a mix of overcast, sunny, wet and lightning-active weather is expected.
Rainfall is predicted for Wednesday and Thursday.
Noticeable swings in temperature are expected throughout the forecast window. Highs will range from 71.6°F to 86°F, while the lowest nightly temperature differences will be negligible, as the lowest temperatures will remain in the range of 57.2°F to 62.6°F.
Today is the hottest day, with a maximum temperature of 86°F; the lowest daytime temperature of the period will be reached on Thursday, peaking at 71.6°F.
Rainfall is predicted for Wednesday and Thursday.
Noticeable swings in temperature are expected throughout the forecast window. Highs will range from 71.6°F to 86°F, while the lowest nightly temperature differences will be negligible, as the lowest temperatures will remain in the range of 57.2°F to 62.6°F.
Today is the hottest day, with a maximum temperature of 86°F; the lowest daytime temperature of the period will be reached on Thursday, peaking at 71.6°F.
Updated: Oct 18, 2026 @ 17:42:24 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, sunshine is expected with little to no cloud cover.
Today, the highest temperature will be 86°F, while the lowest temperature will be 62.6°F.
The maximum temperature today will be noticeably higher than the average highest temperature of 74.5°F in October. The lowest temperature today will be in line with the average low temperature.
The maximum temperature today will be noticeably higher than the average highest temperature of 74.5°F in October. The lowest temperature today will be in line with the average low temperature.
On Sunday, in Westminster, sunrise was at 6:59 am and sunset will be at 6:14 pm (PDT).
In Westminster, California, today, there will be 11h and 15min of daylight.
