Weather forecast for 10 daysAliso Viejo, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 82°F
- 61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphWSW 245°
- Humidity: 39%
- UV index: 6
- Sunrise: 6:58 am PDT
- Sunset: 6:13 pm PDT
- details ▼
On Sunday, October 18, bright and sunny weather is expected.
The temperature variation is predicted to range from a maximum of a warm 82.4°F to a minimum of a comfortable 60.8°F.
With a forecast of 82.4°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise was at 6:58 am and sunset will be at 6:13 pm; the daylight will last for 11h and 16min.
The temperature variation is predicted to range from a maximum of a warm 82.4°F to a minimum of a comfortable 60.8°F.
With a forecast of 82.4°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise was at 6:58 am and sunset will be at 6:13 pm; the daylight will last for 11h and 16min.
10-day overview
Daily temperatures
Warmest day: today 82°C.
Coldest day: Thursday 70°C.
Coldest day: Thursday 70°C.
Chance of precipitation
Highest chance: Wednesday 79%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 82°F
- 61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphWSW 245°
- Humidity: 39%
- UV index: 6
- Sunrise: 6:58 am PDT
- Sunset: 6:13 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 79°F
- 61°F
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 9mphSSW 192°
- Humidity: 58%
- UV index: 6
- Sunrise: 6:59 am PDT
- Sunset: 6:12 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 77°F
- 61°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 9mphS 183°
- Humidity: 70%
- UV index: 6
- Sunrise: 6:59 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 73°F
- 61°F
Rain
- Precip. probability: 79%
- Precipitation: 0.51"
- Wind: 11mphSSE 165°
- Humidity: 70%
- UV index: 5
- Sunrise: 7:00 am PDT
- Sunset: 6:10 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 70°F
- 57°F
Scattered Thunderstorms
- Precip. probability: 67%
- Precipitation: 0.16"
- Wind: 9mphSSW 197°
- Humidity: 70%
- UV index: 5
- Sunrise: 7:01 am PDT
- Sunset: 6:09 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 73°F
- 59°F
Mostly Sunny
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 9mphSSW 212°
- Humidity: 62%
- UV index: 5
- Sunrise: 7:02 am PDT
- Sunset: 6:08 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 79°F
- 61°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphWNW 295°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:03 am PDT
- Sunset: 6:06 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 79°F
- 59°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphSSW 206°
- Humidity: 52%
- UV index: 5
- Sunrise: 7:04 am PDT
- Sunset: 6:05 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 77°F
- 57°F
Partly Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 9mphSSW 207°
- Humidity: 54%
- UV index: 5
- Sunrise: 7:04 am PDT
- Sunset: 6:04 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 75°F
- 57°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 9mphSSW 204°
- Humidity: 55%
- UV index: 5
- Sunrise: 7:05 am PDT
- Sunset: 6:03 pm PDT
- details ▼
An unsettled pattern is expected over the next ten days, and a mix of mostly clear, cloud-filled, rain-soaked and turbulent weather is expected.
Rainfall is expected on Wednesday and Thursday.
Expect a substantial fluctuation in daytime highs in the coming days. The temperature is expected to swing from 69.8°F up to 82.4°F, while fluctuations in the night’s lowest temperature will be minimal, as the lowest temperatures will remain in the range of 57.2°F to 60.8°F.
The warmest day is today, with a maximum temperature of 82.4°F; with the highest temperature of 69.8°F, Thursday will be the coldest day.
Rainfall is expected on Wednesday and Thursday.
Expect a substantial fluctuation in daytime highs in the coming days. The temperature is expected to swing from 69.8°F up to 82.4°F, while fluctuations in the night’s lowest temperature will be minimal, as the lowest temperatures will remain in the range of 57.2°F to 60.8°F.
The warmest day is today, with a maximum temperature of 82.4°F; with the highest temperature of 69.8°F, Thursday will be the coldest day.
Updated: Oct 18, 2026 @ 15:37:53 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
Today, conditions will remain bright with clear skies.
Today, the highest temperature will be 82.4°F, while the lowest temperature will be 60.8°F.
Today, the maximum temperature will be slightly warmer than the average highest temperature in October. The lowest temperature will be in line with the average low of 60.6°F.
Today, the maximum temperature will be slightly warmer than the average highest temperature in October. The lowest temperature will be in line with the average low of 60.6°F.
On Sunday, in Aliso Viejo, sunrise was at 6:58 am and sunset will be at 6:13 pm (PDT).
In Aliso Viejo, California, the length of the day today will be 11h and 16min.
