– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 4 pm Mon 11 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Mon 11 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. Warm (max 21°C on Mon 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 19°C on Thu night, min 9°C on Sat afternoon). Winds increasing (light winds from the N on Thu night, strong winds from the NNW by Fri night).
	Mon 11		Tuesday 12			Wednesday 13			Thursday 14			Friday 15			Saturday 16
	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	some clouds	clear	clear
km/h	S	S	S	WSW	WNW	NW	NW	NE	N	WNW	NNW	NNW	NW	N	NW	NW	N
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	21	21	19	18	17	13	14	14	15	18	19	16	17	18	12	11	12
min °C	21	19	18	18	11	12	13	13	14	17	16	15	17	14	11	9	9
chill °C	21	19	17	18	7	10	11	12	14	17	16	15	17	11	7	4	6

Freezing level m	4450	4350	4200	4250	4150	3900	4000	4150	4100	4200	4100	3800	3900	3650	3300	3200	3150
Cloud base (m)	9550		9350	9150							9100			6650	6600

	—	—	6:01	—	—	6:00	—	—	5:58	—	—	5:58	—	—	5:58	—	—
	—	8:10	—	—	8:12	—	—	8:13	—	—	8:14	—	—	8:15	—	—	8:15

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Warm (max 21°C on Mon 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 19°C on Thu night, min 9°C on Sat afternoon). Winds increasing (light winds from the N on Thu night, strong winds from the NNW by Fri 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	25° C	Clear	Light winds from the S (17 kph at 170).	16 km
Santa Rosa 30 km S 40m alt. 1 hour ago	21° C	Dry	Calm (0 kph at 63).
Cloverdale 34 km W 106m alt. 1 hour ago	29° C	Dry	Wind obs. (6 kph from 112 degs) was rejected.
Graton 35 km SSW 87m alt. 46 minutes ago	23° C	Dry	Wind obs. (8 kph from 26 degs) was rejected.
Alten wx 36 km S 69m alt. 41 minutes ago	21° C	Dry	Calm (0 kph at 154).
Sebastopol 36 km SSW 129m alt. 1 hour ago	19° C	Dry	Calm (3 kph at 172).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	29° C	Dry	Light winds from the SSW (6 kph at 203).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	23° C	Dry	Calm (0 kph at 302).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	23° C	Dry	Calm (3 kph at 270).
Camp Meeker wx 39 km SSW 61m alt. 39 minutes ago	21° C	Dry	Calm (0 kph at 281).

* 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.