Hourly Weather Forecast - Rio Vista, CA

12 AM
50°F
50%
13mph
SSE
50% Chance of Light Rain
Humidity
97%
Feels like
45°F
Dew Point
49°F
1 AM
50°F
50%
13mph
SSE
50% Chance of Light Rain
Humidity
97%
Feels like
50°F
Dew Point
49°F
2 AM
50°F
60%
14mph
SSE
60% Chance of Light Rain
Humidity
97%
Feels like
50°F
Dew Point
49°F
3 AM
51°F
60%
14mph
SSE
60% Chance of Light Rain
Humidity
96%
Feels like
51°F
Dew Point
50°F
4 AM
51°F
60%
14mph
SSE
60% Chance of Light Rain
Humidity
96%
Feels like
51°F
Dew Point
50°F
5 AM
51°F
50%
13mph
SSE
50% Chance Rain Showers
Humidity
95%
Feels like
51°F
Dew Point
50°F
6 AM
51°F
50%
13mph
SSE
50% Chance Rain Showers
Humidity
95%
Feels like
51°F
Dew Point
50°F
7 AM
51°F
50%
13mph
SSE
50% Chance Rain Showers
Humidity
96%
Feels like
51°F
Dew Point
50°F
7:21 AM
8 AM
51°F
40%
12mph
SSE
40% Chance Rain Showers
Humidity
100%
Feels like
51°F
Dew Point
51°F
9 AM
50°F
50%
12mph
SSE
50% Chance Rain Showers
Humidity
100%
Feels like
50°F
Dew Point
50°F
10 AM
50°F
50%
11mph
SSE
50% Chance Rain Showers
Humidity
100%
Feels like
45°F
Dew Point
50°F
11 AM
49°F
60%
11mph
SSE
60% Chance Rain Showers
Humidity
100%
Feels like
45°F
Dew Point
49°F
12 PM
48°F
60%
10mph
SSE
60% Chance Rain Showers
Humidity
100%
Feels like
44°F
Dew Point
48°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into 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

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