– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 10 am Sun 17 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sun 17 May 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 18°C on Tue afternoon, min 8°C on Sun morning). Winds decreasing (gales from the NNE on Sun night, calm by Tue night).									Days 4–6 Weather Summary Mostly dry. Very mild (max 19°C on Thu afternoon, min 17°C on Wed morning). Wind will be generally light.
	Sunday 17			Monday 18			Tuesday 19			Wednesday 20			Thursday 21			Friday 22
	AM	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	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	N	NNE	NNE	NNE	NNE	NNE	NNE	WSW	W	SSE	SW	SSE	SE	SW	NW	S	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	10	11	12	11	16	15	16	18	17	17	18	18	18	19	19	19	19	19
min °C	8	9	9	11	14	14	15	18	17	17	18	18	18	19	19	18	19	17
chill °C	6	4	4	7	12	13	14	18	17	17	18	18	18	19	19	18	19	16

Freezing level m	3450	2650	2900	3050	3050	3100	3300	3500	3700	3750	3900	4000	4100	4150	4100	4100	4250	4150
Cloud base (m)	9450							8900	9150

	5:56	—	—	5:56	—	—	5:54	—	—	5:54	—	—	5:54	—	—	5:52	—	—
	—	—	8:16	—	—	8:17	—	—	8:17	—	—	8:19	—	—	8:20	—	—	8:21

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Very mild (max 18°C on Tue afternoon, min 8°C on Sun morning). Winds decreasing (gales from the NNE on Sun night, calm by Tue night).

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 19°C on Thu afternoon, min 17°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. 2 hours ago	24° C	Clear	Fresh winds from the NNE (33 kph at 30).	16 km
Cloverdale 34 km W 106m alt. 1 hour ago	23° C	Dry	Light winds from the NNE (14 kph at 16).
Graton 35 km SSW 87m alt. 1 hour ago	24° C	Dry	Calm (5 kph at 32).
Alten wx 36 km S 69m alt. 2 hours ago	25° C	Dry	Calm (0 kph at 249).
Sebastopol 36 km SSW 129m alt. 1 hour ago	26° C	Dry	Wind obs. (6 kph from 348 degs) was rejected.
Camp Meeker wx 37 km SSW 61m alt. 44 minutes ago	23° C	Dry	Wind obs. (16 kph from 71 degs) was rejected.
Knowles Corner wx 37 km S 88m alt. 2 hours ago	25° C	Dry	Calm (2 kph at 23).
Camp Meeker wx 39 km SSW 61m alt. 56 minutes ago	22° C	Dry	Calm (5 kph at 112).
Cotati 41 km S 94m alt. 44 minutes ago	23° C	Dry	Wind obs. (24 kph from 57 degs) was rejected.
Occidental 43 km SSW 298m alt. 2 hours ago	24° C	Dry	Calm (5 kph at 332).

* 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.