– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena Weather Forecast

Mayacmas Mountains · United States

Issued: 4 am Fri 25 Sep Local Time

Updates in:

hr min s

Update imminent

Issued: 4 am Fri 25 Sep Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Very mild (max 17°C on Fri afternoon, min 12°C on Sun morning). Winds decreasing (fresh winds from the WNW on Fri morning, calm by Fri night).									Days 4–6 Weather Summary Mostly dry. Warm (max 22°C on Wed afternoon, min 13°C on Mon morning). Wind will be generally light.
	Friday 25			Saturday 26			Sunday 27			Monday 28			Tuesday 29			Wednesday 30
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	clear	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
Cloud base (m)				7200	6450	3450
km/h	WNW	W	S	SSE	SSW	NW	WNW	W	NNE	N	WNW	NNE	NNW	WNW	SSE	SSE	W	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	15	17	15	14	15	15	12	14	14	14	18	18	19	21	21	20	22	21
min °C	15	16	14	13	15	13	12	13	13	13	17	18	18	20	20	19	21	19
chill °C	13	15	14	13	15	13	12	12	12	11	17	18	18	20	20	19	21	19

Freezing level m	3900	4050	4200	4150	4050	3850	3400	3250	3200	3500	4100	4400	4650	4800	4800	4800	4750	4550

	7:00	—	—	7:01	—	—	7:01	—	—	7:03	—	—	7:03	—	—	7:05	—	—
	—	7:02	—	—	7:00	—	—	7:00	—	—	6:58	—	—	6:55	—	—	6:54	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Very mild (max 17°C on Fri afternoon, min 12°C on Sun morning). Winds decreasing (fresh winds from the WNW on Fri morning, calm by Fri night).

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Warm (max 22°C on Wed afternoon, min 13°C on Mon 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 718m alt. 2 hours ago	12°C	Clear	Calm (0 kph at 0).	16 km
Cloverdale 34 km W 106m alt. 44 minutes ago	18°C	Dry	Calm (5 kph at 322).
Graton 35 km SSW 87m alt. 1 hour ago	12°C	Dry	Calm (0 kph at 36).
Alten wx 36 km S 69m alt. 2 hours ago	19°C	Dry	Calm (0 kph at 90).
Sebastopol 36 km SSW 129m alt. 1 hour ago	14°C	Dry	Calm (0 kph at 318).
Camp Meeker wx 37 km SSW 61m alt. 53 minutes ago	22°C	Dry	Calm (3 kph at 45).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	19°C	Dry	Calm (2 kph at 310).
Knowles Corner wx 37 km S 88m alt. 53 minutes ago	11°C	Dry	Calm (0 kph at —).
Monte Rio wx 40 km SSW 76m alt. 1 hour ago	12°C	Dry	Calm (0 kph at 316).
Occidental 43 km SSW 298m alt. 43 minutes ago	17°C	Dry	Calm (0 kph at 292).

* 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.