Weather forecast for tomorrowActon, CA

Weather forecast for tomorrow

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.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 77°C.
Coldest hour: 6 am 55°C.

Chance of precipitation

Highest chance: 12 am - 9 pm 0%.

Hourly weather forecast

  • 12 am
  • 61°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphENE 62°
  • Humidity: 38%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 57°F
  • Feels like:
    57°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphENE 68°
  • Humidity: 41%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 57°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphENE 66°
  • Humidity: 43%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 55°F
  • Feels like:
    54°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphENE 75°
  • Humidity: 46%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:01 am
  • 8 am
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphENE 68°
  • Humidity: 43%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphNE 51°
  • Humidity: 30%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphNE 52°
  • Humidity: 24%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 6
  • ▼
  • 2 pm
  • 77°F
  • Feels like:
    77°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphNE 44°
  • Humidity: 21%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 4 pm
  • 79°F
  • Feels like:
    79°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphNE 47°
  • Humidity: 20%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphWNW 287°
  • Humidity: 26%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:14 pm
  • 8 pm
  • 66°F
  • Feels like:
    66°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSSW 211°
  • Humidity: 40%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 63°F
  • Feels like:
    63°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSSE 157°
  • Humidity: 43%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of cloudy and sunny weather is expected.
The temperature will vary between a minimum of 55.4°F and a maximum of 78.8°F. The warmest part of the day is anticipated around 4 pm.
Tomorrow, the peak temperature is expected to align more with September than with October's typical high. Tomorrow, the temperature will drop to a level resembling October's average minimum of 52.9°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

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.