Hourly Weather Forecast - Saint Helena, CA

12 AM
46°F
20%
1mph
SSE
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
1 AM
46°F
10%
1mph
SSE
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
2 AM
46°F
20%
1mph
SSE
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
3 AM
47°F
20%
1mph
S
Foggy
Humidity
100%
Feels like
47°F
Dew Point
47°F
4 AM
47°F
20%
1mph
S
Foggy
Humidity
100%
Feels like
47°F
Dew Point
47°F
5 AM
47°F
20%
2mph
S
Foggy
Humidity
100%
Feels like
47°F
Dew Point
47°F
6 AM
47°F
20%
2mph
SSE
Foggy
Humidity
100%
Feels like
47°F
Dew Point
47°F
7 AM
47°F
30%
3mph
S
30% Chance of Light Rain
Humidity
100%
Feels like
46°F
Dew Point
47°F
7:22 AM
8 AM
47°F
30%
4mph
SSE
30% Chance of Light Rain
Humidity
100%
Feels like
46°F
Dew Point
47°F
9 AM
47°F
30%
4mph
S
30% Chance of Light Rain
Humidity
100%
Feels like
45°F
Dew Point
47°F
10 AM
47°F
50%
5mph
S
50% Chance of Light Rain
Humidity
100%
Feels like
44°F
Dew Point
47°F
11 AM
46°F
60%
5mph
S
60% Chance of Light Rain
Humidity
100%
Feels like
44°F
Dew Point
46°F
12 PM
46°F
70%
6mph
S
70% Chance of Light Rain
Humidity
100%
Feels like
43°F
Dew Point
46°F
1 PM
46°F
70%
5mph
S
70% Chance of Light Rain
Humidity
100%
Feels like
44°F
Dew Point
46°F
2 PM
47°F
70%
5mph
S
70% Chance of Light Rain
Humidity
100%
Feels like
45°F
Dew Point
47°F
3 PM
48°F
60%
4mph
S
60% Chance of Light Rain
Humidity
100%
Feels like
47°F
Dew Point
48°F
4 PM
45°F
80%
4mph
S
80% Chance of Light Rain
Humidity
100%
Feels like
43°F
Dew Point
45°F
4:51 PM
5 PM
45°F
80%
3mph
S
80% Chance of Light Rain
Humidity
100%
Feels like
43°F
Dew Point
45°F
6 PM
46°F
70%
3mph
S
70% Chance of Light Rain
Humidity
100%
Feels like
45°F
Dew Point
46°F
7 PM
47°F
60%
3mph
S
60% Chance of Light Rain
Humidity
100%
Feels like
47°F
Dew Point
47°F
8 PM
48°F
60%
3mph
S
60% Chance of Light Rain
Humidity
100%
Feels like
48°F
Dew Point
48°F
9 PM
48°F
50%
2mph
S
50% Chance of Light Rain
Humidity
100%
Feels like
48°F
Dew Point
48°F
10 PM
49°F
40%
2mph
SSW
40% Chance of Light Rain
Humidity
100%
Feels like
49°F
Dew Point
49°F
11 PM
49°F
30%
2mph
SSW
30% Chance of Light Rain
Humidity
100%
Feels like
49°F
Dew Point
49°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide