– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 3 pm Tue 30 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Tue 30 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Moderate rain (total 17mm), heaviest on Wed night. Very mild (max 12°C on Tue afternoon, min 9°C on Wed afternoon). Winds increasing (calm on Tue afternoon, fresh winds from the SSE by Fri morning).											Days 5–7 Weather Summary Heavy rain (total 105mm), heaviest during Sat night. Very mild (max 11°C on Fri night, min 8°C on Fri night). Winds decreasing (strong winds from the S on Fri night, light winds from the S by Sun afternoon).
	Tue 30		Wednesday 31			Thursday 1			Friday 2			Saturday 3			Sunday 4
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	cloudy	light rain	mod. rain	light rain	light rain	rain shwrs	light rain	mod. rain	heavy rain	rain shwrs	light rain	heavy rain	heavy rain	rain shwrs	mod. rain
km/h	ESE	E	E	ESE	SE	S	S	S	S	SSE	S	SSW	S	S	S	SSW	SSE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	3	9	0.1	3	1.6	0.6	6	26	1.4	0.1	33	17	1.6	7
max °C	12	12	12	10	9	10	10	10	11	10	11	10	10	10	9	9	9
min °C	10	10	11	9	9	9	10	10	10	10	8	9	9	9	9	8	8
chill °C	10	10	10	7	7	7	8	8	6	6	4	6	6	6	6	5	5

Freezing level m	3650	3350	3250	3200	2950	2850	2700	2550	2700	2400	2250	1900	2000	2150	2150	1900	1850
Cloud base (m)	6600	3000	2650	1550	350	350	400	350	700	400	350	400	450	350	300	350	350

	—	—	7:28	—	—	7:28	—	—	7:28	—	—	7:28	—	—	7:28	—	—
	4:58	—	—	4:59	—	—	5:00	—	—	5:00	—	—	5:00	—	—	5:01	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Moderate rain (total 17mm), heaviest on Wed night. Very mild (max 12°C on Tue afternoon, min 9°C on Wed afternoon). Winds increasing (calm on Tue afternoon, fresh winds from the SSE by Fri morning).

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 105mm), heaviest during Sat night. Very mild (max 11°C on Fri night, min 8°C on Fri night). Winds decreasing (strong winds from the S on Fri night, light winds from the S by Sun afternoon).

This table gives the weather forecast for Mount Saint Helena at the specific elevation of 500 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Santa Rosa Airport 25 km SSW 219m alt. 2 hours ago	8° C	Haze -.	Calm (0 kph at 0).	13 km
Cloverdale 34 km W 106m alt. 1 hour ago	9° C	Dry	Calm (3 kph at 319).
Graton 35 km SSW 87m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 34).
Alten wx 36 km S 69m alt. 1 hour ago	7° C	Dry	Calm (2 kph at 111).
Sebastopol 36 km SSW 129m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 68).
Camp Meeker wx 37 km SSW 61m alt. 43 minutes ago	6° C	Dry	Calm (0 kph at 270).
Camp Meeker wx 37 km SSW 61m alt. 29 minutes ago	6° C	Dry	Calm (0 kph at 294).
Knowles Corner wx 37 km S 88m alt. 45 minutes ago	7° C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 3 hours ago	8° C	Dry	Calm (0 kph at 328).
Monte Rio wx 40 km SSW 76m alt. 44 minutes ago	7° C	Dry	Calm (3 kph at 79).

* 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.