Hourly Weather Forecast - Saint Helena, CA

12 AM
46°F
0%
1mph
NE
Mostly Clear
Humidity
85%
Feels like
46°F
Dew Point
41°F
1 AM
45°F
0%
1mph
NE
Mostly Clear
Humidity
85%
Feels like
45°F
Dew Point
41°F
2 AM
45°F
0%
2mph
NE
Mostly Clear
Humidity
85%
Feels like
45°F
Dew Point
40°F
3 AM
44°F
0%
2mph
NE
Mostly Clear
Humidity
86%
Feels like
44°F
Dew Point
40°F
4 AM
43°F
0%
2mph
NE
Mostly Clear
Humidity
87%
Feels like
43°F
Dew Point
40°F
5 AM
43°F
0%
2mph
NE
Mostly Clear
Humidity
88%
Feels like
43°F
Dew Point
39°F
6 AM
43°F
0%
2mph
NE
Mostly Clear
Humidity
88%
Feels like
43°F
Dew Point
39°F
7 AM
44°F
0%
2mph
NE
Mostly Clear
Humidity
85%
Feels like
44°F
Dew Point
40°F
7:26 AM
8 AM
47°F
0%
2mph
NE
Mostly Sunny
Humidity
78%
Feels like
47°F
Dew Point
41°F
9 AM
52°F
0%
3mph
NE
Mostly Sunny
Humidity
69%
Feels like
52°F
Dew Point
42°F
10 AM
58°F
0%
3mph
NE
Sunny
Humidity
60%
Feels like
58°F
Dew Point
44°F
11 AM
62°F
0%
3mph
NE
Sunny
Humidity
51%
Feels like
62°F
Dew Point
44°F
12 PM
66°F
0%
3mph
NE
Sunny
Humidity
47%
Feels like
66°F
Dew Point
45°F
1 PM
68°F
0%
4mph
NE
Sunny
Humidity
45%
Feels like
68°F
Dew Point
46°F
2 PM
68°F
0%
3mph
NE
Sunny
Humidity
45%
Feels like
68°F
Dew Point
46°F
3 PM
67°F
0%
3mph
NE
Sunny
Humidity
50%
Feels like
67°F
Dew Point
47°F
4 PM
63°F
0%
2mph
NE
Sunny
Humidity
58%
Feels like
63°F
Dew Point
48°F
5 PM
59°F
0%
2mph
NE
Sunny
Humidity
65%
Feels like
59°F
Dew Point
47°F
5:13 PM
6 PM
55°F
0%
2mph
NE
Clear
Humidity
71%
Feels like
55°F
Dew Point
46°F
7 PM
52°F
0%
2mph
NE
Clear
Humidity
74%
Feels like
52°F
Dew Point
44°F
8 PM
51°F
0%
2mph
NNE
Clear
Humidity
75%
Feels like
51°F
Dew Point
43°F
9 PM
49°F
0%
1mph
NNE
Mostly Clear
Humidity
75%
Feels like
49°F
Dew Point
42°F
10 PM
48°F
0%
1mph
NNE
Mostly Clear
Humidity
76%
Feels like
48°F
Dew Point
41°F
11 PM
47°F
0%
1mph
NNE
Mostly Clear
Humidity
77%
Feels like
47°F
Dew Point
40°F

Tuesday's Weather Outlook

Tuesday's Weather Outlook

Rain and snow showers will sweep thru the Great Lakes as the Western U.S. begins a pattern of quiet and dry weather.

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

(Image provided by Pixabay.com)

Before a High Wind Event

Windchill chart

Dangers of Wind Chills

A snow-covered trail in Sparkill, N.Y. (H. Martinez, WeatherBug user)

Top Winter Hiking Destinations

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide