Weather forecast for todaySimi Valley, CA

Weather forecast for today

Current condition 2:19 pm PDT

  • 86°F
  • Feels like:
    86°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 10mphWSW 250°
  • Humidity: 20%
  • Dewpoint: 39°F
  • Pressure: 29.92"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
Currently, the horizon is crisp, and the weather remains sunny and inviting.
The temperature is a humid 86°F. The current temperature is nearly at the maximum 87.8°F for today.

Sunday Oct 18, 2026

  • 88°F
  • 61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphWSW 255°
  • Humidity: 25%
  • UV index: 5
  • Sunrise: 7:03 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
Today, in Simi Valley, sunshine will likely continue with scattered clouds at most.
A substantial temperature range, peaking at a humid 87.8°F and bottoming out at an enjoyable 60.8°F, is predicted.
The expected high of 87.8°F appears seasonally off, better matching September's typical values.
Sunrise was at 7:03 am and sunset will be at 6:17 pm; the daylight will last for 11h and 14min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 86°C.
Coldest period: 11 pm - 12 am 64°C.

Chance of precipitation

Highest chance: 8 pm - 10 pm 1%.

Hourly weather forecast

  • 3 pm
  • 86°F
  • Feels like:
    86°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWSW 255°
  • Humidity: 21%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 84°F
  • Feels like:
    84°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphWSW 253°
  • Humidity: 23%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 5 pm
  • 81°F
  • Feels like:
    81°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphWSW 255°
  • Humidity: 27%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 77°F
  • Feels like:
    77°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphWSW 256°
  • Humidity: 32%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:17 pm
  • 7 pm
  • 73°F
  • Feels like:
    73°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphWSW 257°
  • Humidity: 41%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 70°F
  • Feels like:
    70°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphW 267°
  • Humidity: 49%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 68°F
  • Feels like:
    68°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphN 1°
  • Humidity: 54%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 66°F
  • Feels like:
    66°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphNNE 28°
  • Humidity: 55%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 64°F
  • Feels like:
    64°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphNE 48°
  • Humidity: 53%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 64°F
  • Feels like:
    64°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNE 46°
  • Humidity: 51%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the rest of the day, a cloudless sky and mainly sunshiny weather are expected.
The temperature will vary between the lowest temperature of 64.4°F and the highest temperature of 86°F. The hottest part of the day is expected around 3 pm.
Today, the temperature will be closer to September's norm than to October's average of 74.1°F. Today, the minimum temperature will be resembling the average low for October.
Updated: Oct 18, 2026 @ 21:19:46 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (2:19 pm PDT) it is 86°F in Simi Valley.

Today, in Simi Valley, sunshine is expected with little to no cloud cover.

Today, the maximum temperature will be 87.8°F, while the minimum temperature will be 60.8°F.
The maximum temperature today will be significantly higher than the average highest temperature of 74.1°F in October. The lowest temperature will be in line with the average low of 57.6°F.

On Sunday, in Simi Valley, sunrise was at 7:03 am and sunset will be at 6:17 pm (PDT).

In Simi Valley, the length of the day today will be 11h and 14min.