Weather forecast for tomorrowSignal Hill, CA

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 81°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 8mphSSE 163°
  • Humidity: 60%
  • UV index: 6
  • Sunrise: 7:01 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
On Monday, October 19, high-altitude clouds may scatter across the sky, but the sun will still shine.
The highest temperature will be a warm 80.6°F, while the lowest forecasted temperature is an enjoyable 62.6°F.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is assessed at 82.4°F.
The anticipated high is warmer and better reflects September's normal temperature profile than that of October.
Sunrise will be at 7:01 am and sunset at 6:14 pm; tomorrow's daylight will last for 11h and 13min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 82°C.
Coldest period: 3 am - 6 am 66°C.

Chance of precipitation

Highest chance: 6 am 7%.

Hourly weather forecast

  • 12 am
  • 70°F
  • Feels like:
    70°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphNNW 333°
  • Humidity: 72%
  • Pressure: 29.91"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 2 am
  • 68°F
  • Feels like:
    68°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphE 84°
  • Humidity: 77%
  • Pressure: 29.91"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 4 am
  • 66°F
  • Feels like:
    66°F
Mostly Clear
Mostly Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 1mphN 0°
  • Humidity: 82%
  • Pressure: 29.88"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 6 am
  • 66°F
  • Feels like:
    66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 1mphE 84°
  • Humidity: 84%
  • Pressure: 29.91"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Sunrise: 7:01 am
  • 8 am
  • 64°F
  • Feels like:
    66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 2mphE 82°
  • Humidity: 87%
  • Pressure: 29.91"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 10 am
  • 72°F
  • Feels like:
    73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphE 99°
  • Humidity: 69%
  • Pressure: 29.91"Hg
  • Visibility: 9mi
  • UV index: 3
  • ▼
  • 12 pm
  • 79°F
  • Feels like:
    81°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphS 171°
  • Humidity: 51%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 6
  • ▼
  • 2 pm
  • 81°F
  • Feels like:
    82°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphS 187°
  • Humidity: 46%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 4 pm
  • 81°F
  • Feels like:
    81°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSW 214°
  • Humidity: 48%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphW 273°
  • Humidity: 58%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:14 pm
  • 8 pm
  • 72°F
  • Feels like:
    72°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphWNW 297°
  • Humidity: 70%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 70°F
  • Feels like:
    70°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 3mphESE 124°
  • Humidity: 78%
  • Pressure: 29.85"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, primarily mostly clear and occasionally dull weather is predicted.
The temperature will be between the lowest temperature of 64.4°F and the highest temperature of 80.6°F. The warmest part of the day will be from 1 pm to 4 pm.
The maximum temperature will align more closely with September's average high of 78.8°F than with October's 75°F. The minimum temperature will be close to October's average low of 62.2°F.
Updated: Oct 18, 2026 @ 15:16:11 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, partly cloudy skies will persist, making for a mix of sun and clouds.

Tomorrow, the highest temperature will be 80.6°F, while the lowest temperature will be 62.6°F. The maximum heat index, which indicates how humid air affects the felt temperature, is appraised at 82.4°F.
The highest temperature will be a few degrees higher than the average maximum of 75°F in October. The lowest temperature will be in line with the average low of 62.2°F.

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

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