Weather forecast for 10 daysActon, CA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 79°F
  • 54°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 21mphENE 65°
  • Humidity: 20%
  • UV index: 5
  • Sunrise: 7:00 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
Today, on Saturday, October 17, mostly clear skies with occasional gusts of wind are expected.
Anticipated temperature values will span from a temperate 78.8°F down to a crisp 53.6°F.
The high temperature will be moderately higher than the typical October level of 74.3°F.
Sunrise was at 7:00 am and sunset will be at 6:15 pm; the daylight will last for 11h and 16min.

Sunday Oct 18, 2026

  • 81°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphNE 47°
  • Humidity: 28%
  • UV index: 6
  • Sunrise: 7:01 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
Tomorrow, in Acton, sunshine and minimal clouds are in the outlook.
Temperature changes will be considerable, from a high of a moderately hot 80.6°F to a low of a fresh 53.6°F.
Expect temperatures to match September's average maximum of 84.9°F rather than October's 74.3°F.
Sunrise will be at 7:01 am and sunset at 6:14 pm; tomorrow's daylight will last for 11h and 14min.

10-day overview

Daily temperatures

Warmest day: tomorrow 81°C.
Coldest day: Thursday 59°C.

Chance of precipitation

Highest chance: Wednesday - Thursday 58%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 79°F
  • 54°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 21mphENE 65°
  • Humidity: 20%
  • UV index: 5
  • Sunrise: 7:00 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 81°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphNE 47°
  • Humidity: 28%
  • UV index: 6
  • Sunrise: 7:01 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 79°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 15mphSSW 213°
  • Humidity: 31%
  • UV index: 6
  • Sunrise: 7:01 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 75°F
  • 52°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 13mphS 190°
  • Humidity: 37%
  • UV index: 6
  • Sunrise: 7:02 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 68°F
  • 50°F
Showers
Showers
  • Precip. probability: 58%
  • Precipitation: 0.39"
  • Wind: 11mphS 178°
  • Humidity: 54%
  • UV index: 5
  • Sunrise: 7:03 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 59°F
  • 46°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 58%
  • Precipitation: 0.16"
  • Wind: 13mphSSW 202°
  • Humidity: 74%
  • UV index: 4
  • Sunrise: 7:04 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 66°F
  • 48°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 11mphW 262°
  • Humidity: 59%
  • UV index: 5
  • Sunrise: 7:05 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 72°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphNE 50°
  • Humidity: 48%
  • UV index: 5
  • Sunrise: 7:06 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 72°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 12mphSSE 148°
  • Humidity: 46%
  • UV index: 5
  • Sunrise: 7:07 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 68°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 11mphSE 125°
  • Humidity: 50%
  • UV index: 5
  • Sunrise: 7:07 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
The next ten days will bring unstable conditions, and a mix of clear, dull, rain-soaked and thunderstorm-prone weather is expected.
Rain is predicted for Wednesday and Thursday.
There will be a considerable variation in temperature in the coming days. Forecast highs will fluctuate between 59°F and 80.6°F, while the low temperature range extends from 46.4°F to 53.6°F.
With the highest temperature of 80.6°F, Sunday will be the warmest day; the lowest daytime temperature of the period will be reached on Thursday, peaking at 59°F.
Updated: Oct 17, 2026 @ 18:05:18 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, moderate winds will accompany partly cloudy skies.

Today, the maximum temperature will be 78.8°F, while the minimum temperature will be 53.6°F.
The highest temperature will be a couple of degrees higher than the average maximum of 74.3°F in October. The lowest temperature will be in line with the average low of 52.9°F.

On Saturday, in Acton, sunrise was at 7:00 am and sunset will be at 6:15 pm (PDT).

In Acton, the length of the day today will be 11h and 16min.

On Sunday, clear and sunny conditions are expected.

Tomorrow, the highest temperature will be 80.6°F, while the lowest temperature will be 53.6°F.
The maximum temperature will be a few degrees higher than the average highest temperature of 74.3°F in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Acton, sunrise will be at 7:01 am and sunset at 6:14 pm (PDT).

In Acton, California, tomorrow, there will be 11h and 14min of daylight.