– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 4 pm Tue 12 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Tue 12 May 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 Tue afternoon, min 11°C on Tue night). Winds decreasing (strong winds from the WNW on Tue night, light winds from the N by Thu morning).											Days 5–7 Weather Summary Mostly dry. Very mild (max 17°C on Fri night, min 8°C on Sun morning). Winds increasing (calm on Sat night, gales from the NNE by Sun night).
	Tue 12		Wednesday 13			Thursday 14			Friday 15			Saturday 16			Sunday 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	some clouds	some clouds	clear	clear	clear	clear	clear
km/h	W	WNW	NNW	NW	NNE	NW	WNW	N	NW	NW	NW	NNW	NW	ESE	NNW	NNE	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	19	16	13	14	15	15	18	18	15	16	17	10	11	12	9	11	12
min °C	18	11	12	14	14	14	17	15	14	16	9	10	10	9	8	10	10
chill °C	18	7	10	13	14	14	17	14	13	15	4	7	8	8	5	7	5

Freezing level m	4250	4100	3750	3900	4100	4050	4150	4000	3750	3800	3450	3050	3200	3250	3550	3700	3400
Cloud base (m)	9150							9050			7850	6850	7850

	—	—	6:00	—	—	5:58	—	—	5:58	—	—	5:58	—	—	5:56	—	—
	—	8:12	—	—	8:13	—	—	8:14	—	—	8:15	—	—	8:15	—	—	8:16

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Very mild (max 19°C on Tue afternoon, min 11°C on Tue night). Winds decreasing (strong winds from the WNW on Tue night, light winds from the N by Thu morning).

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 17°C on Fri night, min 8°C on Sun morning). Winds increasing (calm on Sat night, gales from the NNE by Sun 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	21° C	Clear	Moderate winds from the SE (20 kph at 140).	16 km
Santa Rosa 30 km S 40m alt. 58 minutes ago	17° C	Dry	Wind obs. (6 kph from 63 degs) was rejected.
Cloverdale 34 km W 106m alt. 43 minutes ago	24° C	Dry	Wind obs. (10 kph from 261 degs) was rejected.
Graton 35 km SSW 87m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 32).
Alten wx 36 km S 69m alt. 48 minutes ago	16° C	Dry	Calm (0 kph at 90).
Sebastopol 36 km SSW 129m alt. 46 minutes ago	17° C	Dry	Calm (0 kph at 300).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	21° C	Dry	Calm (2 kph at 299).
Knowles Corner wx 37 km S 88m alt. 2 hours ago	21° C	Dry	Calm (2 kph at 270).
Camp Meeker wx 39 km SSW 61m alt. 37 minutes ago	17° C	Dry	Calm (0 kph at 333).
Cotati 41 km S 94m alt. 1 hour ago	15° C	Dry	Calm (3 kph at 289).

* 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.