Weather forecast for 10 daysHalcyon, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 77°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 12mphW 266°
  • Humidity: 58%
  • UV index: 6
  • Sunrise: 7:11 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
Tomorrow, the outlook remains bright and sunny.
Temperature is forecasted to swing from a high of a warm 77°F to a low of a fresh 51.8°F.
Tomorrow's highest temperature is predicted to match the regular high for October at 74.3°F.
Sunrise will be at 7:11 am and sunset at 6:23 pm; tomorrow's daylight will last for 11h and 13min.

10-day overview

Daily temperatures

Warmest day: tomorrow 77°C.
Coldest day: Wednesday 66°C.

Chance of precipitation

Highest chance: Wednesday 71%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 55°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphE 86°
  • Humidity: 58%
  • UV index: 0
  • Sunrise: 7:10 am PDT
  • Sunset: 6:24 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 77°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 12mphW 266°
  • Humidity: 58%
  • UV index: 6
  • Sunrise: 7:11 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 50°F
AM Fog / PM Sun
AM Fog / PM Sun
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 14mphWNW 291°
  • Humidity: 68%
  • UV index: 5
  • Sunrise: 7:12 am PDT
  • Sunset: 6:22 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0.12"
  • Wind: 11mphW 266°
  • Humidity: 68%
  • UV index: 4
  • Sunrise: 7:12 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 55°F
Thunderstorms
Thunderstorms
  • Precip. probability: 71%
  • Precipitation: 0.47"
  • Wind: 9mphSW 224°
  • Humidity: 78%
  • UV index: 4
  • Sunrise: 7:13 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 70°F
  • 52°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 41%
  • Precipitation: 0.08"
  • Wind: 14mphW 274°
  • Humidity: 75%
  • UV index: 4
  • Sunrise: 7:14 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 50°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 16mphNW 326°
  • Humidity: 69%
  • UV index: 5
  • Sunrise: 7:15 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 73°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 12mphNNW 335°
  • Humidity: 63%
  • UV index: 5
  • Sunrise: 7:16 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 72°F
  • 52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 13mphWNW 299°
  • Humidity: 64%
  • UV index: 4
  • Sunrise: 7:17 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 72°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 14mphNNW 333°
  • Humidity: 59%
  • UV index: 5
  • Sunrise: 7:18 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
Mixed conditions are forecasted for the coming ten days, and a mix of overcast, sun-filled, stormy and hazy weather is anticipated.
Rainfall is predicted for Wednesday and Thursday.
In the coming days, the maximum temperature will range between 66.2°F and 77°F, while the lowest nighttime temperatures will be relatively consistent, as the overnight low will fall between 50°F and 55.4°F.
Sunday will be the warmest day, with a maximum temperature of 77°F; the coldest day will be Wednesday, with a maximum of 66.2°F.
Updated: Oct 18, 2026 @ 02:39:35 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Halcyon, bright and sunny weather is expected.

Tomorrow, the maximum temperature in Halcyon, California, will be 77°F, while the minimum temperature will be 51.8°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. Tomorrow, the lowest temperature will be a couple of degrees lower than the average low temperature.

On Sunday, in Halcyon, sunrise will be at 7:11 am and sunset at 6:23 pm (PDT).

In Halcyon, tomorrow, there will be 11h and 13min of daylight.