– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 10 pm Sat 18 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Sat 18 Apr Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 38mm), heaviest during Tue afternoon. Very mild (max 11°C on Sat night, min 2°C on Tue afternoon). Winds increasing (moderate winds from the S on Sat night, gales from the S by Mon afternoon).										Days 5–7 Weather Summary Light rain (total 2mm), mostly falling on Tue night. Very mild (max 13°C on Fri afternoon, min 2°C on Tue night). Winds increasing (calm on Thu afternoon, strong winds from the NE by Thu night).
		Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	some clouds	cloudy	light rain	mod. rain	mod. rain	light rain	heavy rain	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear	clear
km/h	SSE	S	S	SSW	S	SSW	SSW	SSE	SW	W	WNW	WNW	NNW	N	NE	NE	NNE	NNE	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	5	10	8	5	12	0.9	0.3	0.8	—	—	—	—	—	—	—
max °C	11	9	9	10	6	6	5	3	3	2	4	5	6	6	10	12	12	13	14
min °C	10	9	9	5	6	5	3	3	2	2	3	5	5	6	9	9	11	13	13
chill °C	6	5	6	-1	0	-1	-2	-2	-5	-3	-2	3	3	6	9	8	8	11	12

Freezing level m	3250	3050	3000	2850	2500	2350	1850	1900	1700	1700	1850	2250	2700	3100	3250	3250	3300	3250	3250
Cloud base (m)	5700	5100	5050	3350	500	350	350	350	400	350	550	1700			8800	9250	8800	8750	8150

	—	6:28	—	—	6:26	—	—	6:26	—	—	6:24	—	—	6:22	—	—	6:22	—	—
	—	—	7:50	—	—	7:51	—	—	7:52	—	—	7:52	—	—	7:53	—	—	7:54	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Heavy rain (total 38mm), heaviest during Tue afternoon. Very mild (max 11°C on Sat night, min 2°C on Tue afternoon). Winds increasing (moderate winds from the S on Sat night, gales from the S by Mon afternoon).

Mount Saint Helena Weather (Days 3-6):

Light rain (total 2mm), mostly falling on Tue night. Very mild (max 13°C on Fri afternoon, min 2°C on Tue night). Winds increasing (calm on Thu afternoon, strong winds from the NE by Thu 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	13° C	Clear	Light winds from the S (7 kph at 180).	16 km
Santa Rosa 30 km S 40m alt. 32 minutes ago	12° C	Dry	Calm (0 kph at 64).
Cloverdale 34 km W 106m alt. 2 hours ago	13° C	Dry	Calm (0 kph at 76).
Graton 35 km SSW 87m alt. 1 hour ago	9° C	Dry	Calm (0 kph at 35).
Alten wx 36 km S 69m alt. 46 minutes ago	11° C	Dry	Calm (0 kph at 157).
Sebastopol 36 km SSW 129m alt. 1 hour ago	11° C	Dry	Calm (0 kph at 223).
Camp Meeker wx 37 km SSW 61m alt. 36 minutes ago	10° C	Dry	Calm (3 kph at 225).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	10° C	Dry	Calm (2 kph at 282).
Knowles Corner wx 37 km S 88m alt. 2 hours ago	11° C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 35 minutes ago	9° C	Dry	Calm (0 kph at 359).

* 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.