Hourly Weather Forecast - Petaluma, CA

12 AM
46°F
90%
9mph
S
Rain Showers
Humidity
96%
Feels like
42°F
Dew Point
45°F
1 AM
46°F
90%
8mph
S
Rain Showers
Humidity
98%
Feels like
42°F
Dew Point
45°F
2 AM
46°F
90%
7mph
S
Rain Showers
Humidity
99%
Feels like
42°F
Dew Point
46°F
3 AM
46°F
90%
7mph
S
Rain Showers
Humidity
100%
Feels like
42°F
Dew Point
46°F
4 AM
47°F
90%
6mph
S
Rain Showers
Humidity
97%
Feels like
44°F
Dew Point
46°F
5 AM
48°F
90%
6mph
S
Rain Showers
Humidity
95%
Feels like
45°F
Dew Point
47°F
6 AM
49°F
90%
6mph
S
Light Rain
Humidity
92%
Feels like
47°F
Dew Point
47°F
7 AM
49°F
80%
6mph
S
80% Chance of Light Rain
Humidity
94%
Feels like
47°F
Dew Point
48°F
7:25 AM
8 AM
50°F
80%
7mph
S
80% Chance of Light Rain
Humidity
95%
Feels like
47°F
Dew Point
48°F
9 AM
50°F
80%
8mph
S
80% Chance Rain Showers
Humidity
96%
Feels like
46°F
Dew Point
49°F
10 AM
49°F
80%
8mph
S
80% Chance Rain Showers
Humidity
98%
Feels like
46°F
Dew Point
49°F
11 AM
49°F
80%
8mph
S
80% Chance Rain Showers
Humidity
100%
Feels like
46°F
Dew Point
49°F
12 PM
49°F
90%
8mph
SSW
Rain Showers
Humidity
100%
Feels like
46°F
Dew Point
49°F
1 PM
49°F
90%
7mph
SSW
Rain Showers
Humidity
100%
Feels like
46°F
Dew Point
49°F
2 PM
48°F
90%
7mph
SSW
Rain Showers
Humidity
100%
Feels like
45°F
Dew Point
48°F
3 PM
47°F
90%
7mph
SSW
Rain Showers
Humidity
100%
Feels like
44°F
Dew Point
47°F
4 PM
46°F
70%
7mph
SSW
70% Chance Rain Showers
Humidity
100%
Feels like
42°F
Dew Point
46°F
4:56 PM
5 PM
45°F
60%
6mph
SSW
60% Chance Rain Showers
Humidity
100%
Feels like
42°F
Dew Point
45°F
6 PM
45°F
50%
5mph
S
50% Chance Rain Showers
Humidity
100%
Feels like
42°F
Dew Point
45°F
7 PM
45°F
50%
5mph
S
50% Chance Rain Showers
Humidity
100%
Feels like
42°F
Dew Point
45°F
8 PM
45°F
40%
4mph
SSE
40% Chance Rain Showers
Humidity
100%
Feels like
43°F
Dew Point
45°F
9 PM
45°F
40%
4mph
ESE
40% Chance Rain Showers
Humidity
100%
Feels like
44°F
Dew Point
45°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide