Hourly Weather Forecast - Saint Helena, CA

12 AM
48°F
10%
1mph
SSW
Foggy
Humidity
100%
Feels like
48°F
Dew Point
48°F
1 AM
48°F
0%
1mph
SW
Foggy
Humidity
100%
Feels like
48°F
Dew Point
48°F
2 AM
47°F
10%
1mph
SW
Foggy
Humidity
100%
Feels like
47°F
Dew Point
47°F
3 AM
46°F
10%
1mph
SW
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
4 AM
46°F
10%
0mph
WSW
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
5 AM
46°F
10%
1mph
WSW
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
6 AM
46°F
10%
1mph
WSW
Foggy
Humidity
100%
Feels like
46°F
Dew Point
46°F
7 AM
45°F
10%
1mph
WSW
Foggy
Humidity
100%
Feels like
45°F
Dew Point
45°F
7:23 AM
8 AM
45°F
10%
1mph
SW
Foggy
Humidity
100%
Feels like
45°F
Dew Point
45°F
9 AM
44°F
20%
1mph
SW
Foggy
Humidity
100%
Feels like
44°F
Dew Point
44°F
10 AM
44°F
20%
1mph
SSW
Foggy
Humidity
100%
Feels like
44°F
Dew Point
44°F
11 AM
44°F
20%
1mph
SSW
Foggy
Humidity
100%
Feels like
44°F
Dew Point
44°F
12 PM
44°F
30%
2mph
SSW
30% Chance of Light Rain
Humidity
100%
Feels like
44°F
Dew Point
44°F
1 PM
44°F
50%
2mph
SSW
50% Chance of Light Rain
Humidity
100%
Feels like
44°F
Dew Point
44°F
2 PM
45°F
80%
2mph
S
80% Chance of Light Rain
Humidity
100%
Feels like
45°F
Dew Point
45°F
3 PM
45°F
100%
2mph
S
Rain
Humidity
100%
Feels like
45°F
Dew Point
45°F
4 PM
41°F
100%
1mph
SSE
Rain
Humidity
100%
Feels like
41°F
Dew Point
41°F
4:51 PM
5 PM
41°F
100%
2mph
SSE
Rain
Humidity
100%
Feels like
41°F
Dew Point
41°F
6 PM
42°F
100%
2mph
SSE
Rain
Humidity
100%
Feels like
42°F
Dew Point
42°F
7 PM
43°F
100%
2mph
SSE
Rain
Humidity
100%
Feels like
43°F
Dew Point
43°F
8 PM
44°F
100%
2mph
SSE
Rain
Humidity
100%
Feels like
44°F
Dew Point
44°F
9 PM
45°F
100%
2mph
S
Rain
Humidity
100%
Feels like
45°F
Dew Point
45°F
10 PM
46°F
100%
2mph
S
Rain
Humidity
100%
Feels like
46°F
Dew Point
46°F
11 PM
47°F
100%
3mph
S
Rain
Humidity
100%
Feels like
47°F
Dew Point
47°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

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