– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena Weather Forecast

Mayacmas Mountains · United States

Issued: 4 pm Wed 07 Oct Local Time

Updates in:

hr min s

Update imminent

Issued: 4 pm Wed 07 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. Warm (max 24°C on Wed afternoon, min 13°C on Sat morning). Mainly fresh winds.											Days 5–7 Weather Summary Mostly dry. Very mild (max 13°C on Mon night, min 7°C on Sun morning). Mainly strong winds.
	Wed 7		Thursday 8			Friday 9			Saturday 10			Sunday 11			Monday 12
	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	some clouds	clear	clear	clear
Cloud base (m)														2750	4200
km/h	SW	SW	WSW	WNW	WNW	NW	W	WNW	SW	WNW	NNW	NNE	NE	ENE	ESE	NW	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	24	23	24	24	23	22	22	21	15	12	12	8	12	11	9	12	13
min °C	24	23	22	24	22	22	22	16	13	11	9	7	11	8	8	10	11
chill °C	24	23	22	24	22	22	22	14	12	11	6	2	8	4	4	10	9

Freezing level m	4750	4650	4500	4500	4350	4250	4200	4150	3950	4000	3650	3200	2950	2900	3200	3300	3200

	—	—	7:11	—	—	7:13	—	—	7:13	—	—	7:15	—	—	7:16	—	—
	6:44	—	—	6:43	—	—	6:40	—	—	6:39	—	—	6:37	—	—	6:37	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Warm (max 24°C on Wed afternoon, min 13°C on Sat morning). Mainly fresh winds.

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 13°C on Mon night, min 7°C on Sun morning). Mainly strong winds.

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. 2 hours ago	27°C	Clear	Wind obs. (13 kph from 150 degs) was rejected.	16 km
Cloverdale 34 km W 106m alt. 1 hour ago	31°C	Dry	Calm (3 kph at 107).
Graton 35 km SSW 87m alt. 44 minutes ago	19°C	Dry	Calm (0 kph at 30).
Alten wx 36 km S 69m alt. 34 minutes ago	16°C	Dry	Calm (0 kph at 90).
Sebastopol 36 km SSW 129m alt. 1 hour ago	20°C	Dry	Calm (3 kph at 189).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	29°C	Dry	Calm (5 kph at 225).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	21°C	Dry	Calm (0 kph at 282).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	21°C	Dry	Calm (0 kph at —).
Monte Rio wx 40 km SSW 76m alt. 1 hour ago	14°C	Dry	Calm (0 kph at 97).
Cotati 41 km S 94m alt. 2 hours ago	14°C	Dry	Light winds from the W (13 kph at 263).

* 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.