Hourly Weather Forecast - Saint Helena, CA

12 AM
43°F
60%
2mph
S
60% Chance of Rain
Humidity
100%
Feels like
43°F
Dew Point
43°F
1 AM
44°F
50%
1mph
SSW
50% Chance of Rain
Humidity
100%
Feels like
44°F
Dew Point
44°F
2 AM
44°F
50%
1mph
SSW
50% Chance of Rain
Humidity
100%
Feels like
44°F
Dew Point
44°F
3 AM
44°F
40%
2mph
SSW
40% Chance Rain Showers
Humidity
100%
Feels like
44°F
Dew Point
44°F
4 AM
44°F
40%
2mph
SSW
40% Chance Rain Showers
Humidity
100%
Feels like
44°F
Dew Point
44°F
5 AM
44°F
50%
2mph
S
50% Chance Rain Showers
Humidity
100%
Feels like
44°F
Dew Point
44°F
6 AM
43°F
50%
2mph
S
50% Chance Rain Showers
Humidity
100%
Feels like
43°F
Dew Point
43°F
7 AM
43°F
50%
2mph
SSE
50% Chance Rain Showers
Humidity
100%
Feels like
43°F
Dew Point
43°F
7:25 AM
8 AM
44°F
50%
2mph
SSE
50% Chance Rain Showers
Humidity
100%
Feels like
44°F
Dew Point
44°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

Friday's Weather Outlook

Friday'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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