Weather forecast for todayPetaluma, CA

Weather forecast for today

Current condition 11:59 am PST

  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 5mphNNW 330°
  • Humidity: 56%
  • Dewpoint: 54°F
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
At the moment, in Petaluma, the perfect day for a walk, with a clear sky and a warm sun.
The temperature is an agreeable 69.8°F. The current temperature is nearly at the maximum anticipated 73.4°F for today.

Friday Oct 23, 2026

  • 73°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphWNW 298°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:27 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
Today, in Petaluma, expect plenty of sunshine and only a few scattered clouds.
Substantial temperature fluctuations from a high of a temperate 73.4°F to a low of a chilly 42.8°F are predicted.
The forecasted peak temperature will reflect the average October high of 71.2°F.
Sunrise was at 7:27 am and sunset will be at 6:21 pm; the daylight will last for 10h and 55min.

Hourly overview

Hourly temperatures

Warmest period: 2 pm - 3 pm 73°C.
Coldest hour: 10 pm 52°C.

Chance of precipitation

Highest chance: 8 pm - 10 pm 4%.

Hourly weather forecast

  • 1 pm
  • 70°F
  • Feels like:
    70°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphNNW 340°
  • Humidity: 55%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphNNW 327°
  • Humidity: 48%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphWNW 301°
  • Humidity: 46%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphW 278°
  • Humidity: 51%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphW 273°
  • Humidity: 51%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphW 273°
  • Humidity: 53%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:21 pm
  • 7 pm
  • 59°F
  • Feels like:
    59°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphWNW 283°
  • Humidity: 65%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphNW 320°
  • Humidity: 75%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphNW 322°
  • Humidity: 79%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphNW 325°
  • Humidity: 78%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphNNW 329°
  • Humidity: 76%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, sunny conditions are likely to prevail.
The temperature will vary between a minimum of 51.8°F and a maximum of 73.4°F. The warmest part of the day will be at 2 pm and 3 pm.
The maximum temperature will be similar to the average high of 71.2°F in October. The lowest temperature is more close to November's average minimum of 47.3°F than the usual minimum of 52.7°F in October.
Updated: Oct 23, 2026 @ 19:59:52 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (11:59 am PST) is 69.8°F.

Today, in Petaluma, mostly sunny weather is likely, with high visibility.

Today, the highest temperature will be 73.4°F, while the lowest temperature will be 42.8°F.
The maximum temperature will be in line with the average highest temperature of 71.2°F in October. The lowest temperature will be uncommonly lower than the average low of 52.7°F.

On Friday, in Petaluma, sunrise was at 7:27 am and sunset will be at 6:21 pm (PDT).

In Petaluma, the length of the day today will be 10h and 55min.