Hourly Weather Forecast - Napa, CA

9 AM
40°F
0%
6mph
ENE
Partly Cloudy
Humidity
96%
Feels like
36°F
Dew Point
39°F
10 AM
42°F
0%
6mph
E
Partly Cloudy
Humidity
92%
Feels like
39°F
Dew Point
40°F
11 AM
45°F
0%
7mph
ESE
Partly Cloudy
Humidity
86%
Feels like
41°F
Dew Point
41°F
12 PM
47°F
0%
7mph
SE
Mostly Sunny
Humidity
82%
Feels like
43°F
Dew Point
42°F
1 PM
48°F
0%
7mph
SE
Mostly Sunny
Humidity
80%
Feels like
45°F
Dew Point
42°F
2 PM
49°F
0%
7mph
SE
Partly Cloudy
Humidity
80%
Feels like
45°F
Dew Point
43°F
3 PM
47°F
0%
7mph
SSE
Partly Cloudy
Humidity
84%
Feels like
44°F
Dew Point
43°F
4 PM
46°F
0%
6mph
SSE
Mostly Sunny
Humidity
89%
Feels like
43°F
Dew Point
43°F
4:49 PM
5 PM
44°F
0%
6mph
SSE
Hazy
Humidity
93%
Feels like
41°F
Dew Point
42°F
6 PM
43°F
0%
6mph
SE
Hazy
Humidity
94%
Feels like
39°F
Dew Point
41°F
7 PM
42°F
0%
6mph
ESE
Hazy
Humidity
95%
Feels like
38°F
Dew Point
40°F
8 PM
41°F
0%
6mph
E
Hazy
Humidity
96%
Feels like
37°F
Dew Point
40°F
9 PM
40°F
0%
6mph
E
Hazy
Humidity
98%
Feels like
36°F
Dew Point
40°F
10 PM
40°F
0%
6mph
ENE
Foggy
Humidity
99%
Feels like
35°F
Dew Point
39°F
11 PM
39°F
0%
6mph
ENE
Partly Cloudy
Humidity
98%
Feels like
35°F
Dew Point
39°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Sunday Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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