– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena Weather Forecast

Mayacmas Mountains · United States

Issued: 4 pm Fri 16 Oct Local Time

Updates in:

hr min s

Update imminent

Issued: 4 pm Fri 16 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 22°C on Fri afternoon, min 11°C on Mon morning). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Very mild (max 13°C on Wed afternoon, min 6°C on Tue morning). Winds increasing (calm on Wed morning, fresh winds from the WNW by Wed night).
	Fri 16		Saturday 17			Sunday 18			Monday 19			Tuesday 20			Wednesday 21
	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	some clouds	some clouds	some clouds	some clouds	light rain	some clouds	some clouds	some clouds	some clouds
Cloud base (m)									4850	4700	7000	2750	2350	3200	5250	4600	3500
km/h	SW	W	WSW	W	WSW	SW	WSW	WSW	WSW	WNW	W	ESE	E	E	NE	W	WNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	0.1	—	—	—	—
max °C	22	21	20	20	19	17	16	15	12	9	9	7	8	10	12	13	12
min °C	22	19	19	20	17	16	16	13	11	9	7	6	8	8	11	13	11
chill °C	22	19	19	20	17	16	15	11	10	7	4	4	7	7	11	13	8

Freezing level m	4750	4400	4250	4250	4150	4050	4050	3850	3550	3250	2750	2450	2500	2800	3050	3100	3050

	—	—	7:20	—	—	7:22	—	—	7:22	—	—	7:24	—	—	7:24	—	—
	6:30	—	—	6:29	—	—	6:28	—	—	6:27	—	—	6:24	—	—	6:23	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Warm (max 22°C on Fri afternoon, min 11°C on Mon morning). Wind will be generally light.

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 13°C on Wed afternoon, min 6°C on Tue morning). Winds increasing (calm on Wed morning, fresh winds from the WNW by Wed night).

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	20°C	Clear	Light winds from the SSE (7 kph at 160).	16 km
Cloverdale 34 km W 106m alt. 1 hour ago	21°C	Dry	Calm (5 kph at 46).
Alten wx 36 km S 69m alt. 2 hours ago	17°C	Dry	Calm (0 kph at 157).
Sebastopol 36 km SSW 129m alt. 1 hour ago	18°C	Dry	Calm (0 kph at 213).
Camp Meeker wx 37 km SSW 61m alt. 58 minutes ago	18°C	Dry	Calm (0 kph at 225).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	18°C	Dry	Calm (0 kph at 297).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	16°C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 1 hour ago	17°C	Dry	Calm (0 kph at 7).
Monte Rio wx 40 km SSW 76m alt. 2 hours ago	15°C	Dry	Calm (0 kph at 273).
Cotati 41 km S 94m alt. 47 minutes ago	19°C	Dry	Calm (0 kph at 262).

* 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.