– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena Weather Forecast

Mayacmas Mountains · United States

Issued: 10 pm Sun 25 Oct Local Time

Updates in:

hr min s

Update imminent

Issued: 10 pm Sun 25 Oct Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Very mild (max 12°C on Wed afternoon, min 7°C on Mon night). Winds decreasing (fresh winds from the W on Sun night, calm by Mon night).										Days 5–7 Weather Summary Mostly dry. Very mild (max 12°C on Wed night, min 6°C on Fri night). Wind will be generally light.
		Monday 26			Tuesday 27			Wednesday 28			Thursday 29			Friday 30
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	cloudy	cloudy	cloudy	some clouds	clear	clear
Cloud base (m)		8550			8350			8600			6750	5950	3950	5400	8950
km/h	WSW	WNW	NW	SSE	NW	N	NNE	NNE	N	E	SSE	WSW	SW	WSW	W	WNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	11	8	9	8	8	10	8	10	12	12	10	9	8	7	8	7
min °C	9	8	9	7	7	9	8	9	12	10	10	9	7	7	7	6
chill °C	5	4	7	7	7	7	6	7	12	9	10	8	5	5	4	4

Freezing level m	3400	3500	3700	3700	3300	3550	3500	3600	3600	3550	3250	2900	2550	2450	2500	2500

	—	7:30	—	—	7:31	—	—	7:31	—	—	7:33	—	—	7:33	—	—
	—	—	6:16	—	—	6:15	—	—	6:15	—	—	6:14	—	—	6:13	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Very mild (max 12°C on Wed afternoon, min 7°C on Mon night). Winds decreasing (fresh winds from the W on Sun night, calm by Mon night).

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 12°C on Wed night, min 6°C on Fri night). Wind will be generally light.

This table gives the weather forecast for Mount Saint Helena at the specific elevation of 1323 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount Saint Helena. To see the weather forecasts for the other elevations, use the tab navigation above the table.For a wider overview of the weather, consult the Weather Map of California.

Live conditions reported by 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Santa Rosa Airport 25 km SSW 219m alt. 3 hours ago	14°C	Clear	Calm (0 kph at 0).	16 km
Cloverdale 34 km W 106m alt. 58 minutes ago	12°C	Dry	Calm (2 kph at 78).
Graton 35 km SSW 87m alt. 2 hours ago	9°C	Dry	Calm (0 kph at 36).
Alten wx 36 km S 69m alt. 1 hour ago	12°C	Dry	Calm (0 kph at 105).
Sebastopol 36 km SSW 129m alt. 1 hour ago	12°C	Dry	Calm (0 kph at 209).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	10°C	Dry	Calm (0 kph at 248).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	10°C	Dry	Calm (0 kph at 267).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	9°C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 52 minutes ago	8°C	Dry	Calm (0 kph at 0).
Monte Rio wx 40 km SSW 76m alt. 1 hour ago	8°C	Dry	Calm (0 kph at 277).

* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.