– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena Weather Forecast

Mayacmas Mountains · United States

Issued: 4 pm Sat 12 Sep Local Time

Updates in:

hr min s

Update imminent

Issued: 4 pm Sat 12 Sep 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 19°C on Mon afternoon, min 11°C on Sun morning). Winds decreasing (strong winds from the W on Sat night, calm by Mon afternoon).											Days 5–7 Weather Summary Mostly dry. Warm (max 21°C on Tue afternoon, min 18°C on Wed morning). Wind will be generally light.
	Sat 12		Sunday 13			Monday 14			Tuesday 15			Wednesday 16			Thursday 17
	PM	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	clear	clear	clear	clear	clear	clear	clear	clear
Cloud base (m)														8850
km/h	W	WNW	NNW	NW	NNE	NNW	NW	NNE	ENE	WSW	W	ESE	SE	S	SSE	S	S
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	18	15	11	15	15	16	19	19	19	21	20	19	21	20	20	21	20
min °C	16	12	11	14	15	15	19	18	18	20	19	18	20	19	19	21	19
chill °C	14	10	9	13	14	14	19	18	18	20	19	18	20	19	19	21	19

Freezing level m	4550	4250	4150	4300	4400	4400	4400	4250	4250	4300	4300	4350	4500	4550	4550	4700	4750

	—	—	6:48	—	—	6:50	—	—	6:50	—	—	6:52	—	—	6:52	—	—
	7:23	—	—	7:22	—	—	7:20	—	—	7:19	—	—	7:16	—	—	7:15	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Very mild (max 19°C on Mon afternoon, min 11°C on Sun morning). Winds decreasing (strong winds from the W on Sat night, calm by Mon afternoon).

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Warm (max 21°C on Tue afternoon, min 18°C on Wed morning). 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	24°C	Clear	Wind obs. (24 kph from 350 degs) was rejected.	16 km
Cloverdale 34 km W 106m alt. 52 minutes ago	18°C	Dry	Calm (5 kph at 295).
Graton 35 km SSW 87m alt. 44 minutes ago	18°C	Dry	Calm (2 kph at 34).
Alten wx 36 km S 69m alt. 1 hour ago	17°C	Dry	Calm (5 kph at 188).
Sebastopol 36 km SSW 129m alt. 56 minutes ago	18°C	Dry	Calm (2 kph at 344).
Camp Meeker wx 37 km SSW 61m alt. 47 minutes ago	17°C	Dry	Calm (5 kph at 225).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	17°C	Dry	Calm (0 kph at 338).
Knowles Corner wx 37 km S 88m alt. 2 hours ago	21°C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 50 minutes ago	16°C	Dry	Calm (0 kph at 307).
Monte Rio wx 40 km SSW 76m alt. 1 hour ago	16°C	Dry	Calm (0 kph at 1).

* 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.