– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 9 am Mon 29 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Mon 29 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 4mm), mostly falling on Wed night. Very mild (max 13°C on Tue afternoon, min 6°C on Wed night). Winds increasing (light winds from the SSE on Tue night, fresh winds from the SE by Wed afternoon).									Days 4–6 Weather Summary Heavy rain (total 53mm), heaviest during Fri afternoon. Later becoming colder with a dusting of snow on Fri night. Mild temperatures (max 8°C on Thu morning, min 1°C on Fri night). Winds decreasing (severe gales from the S on Fri morning, calm by Sat night).
	Monday 29			Tuesday 30			Wednesday 31			Thursday 1			Friday 2			Saturday 3
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	some clouds	some clouds	cloudy	cloudy	light rain	light rain	light rain	mod. rain	heavy rain	light rain	heavy rain	snow shwrs	rain shwrs	light rain	some clouds
km/h	ENE	NNE	NE	SE	SSE	SSE	SSE	ESE	SSE	S	S	S	S	S	SW	SSW	SSW	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	3	—	—	—
mm	—	—	—	—	—	—	—	0.6	3	1.4	8	13	4	24	1.7	0.2	0.1	—
max °C	12	12	12	12	13	13	11	8	7	8	8	8	7	6	4	2	3	3
min °C	11	12	11	11	12	12	9	7	6	7	7	7	6	5	1	2	3	3
chill °C	9	10	9	10	11	10	7	2	1	2	1	0	-1	-3	-8	-3	-1	0

Freezing level m	3950	4000	4050	3800	3700	3300	3000	2950	2900	2900	2850	2750	2450	2300	1450	1650	1850	1850
Cloud base (m)				9300	6700	3250	2650	2400	500	350	350	350	400	350	500	550	750	2200

	7:26	—	—	7:28	—	—	7:28	—	—	7:28	—	—	7:28	—	—	7:28	—	—
	—	4:57	—	—	4:58	—	—	4:59	—	—	5:00	—	—	5:00	—	—	5:00	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Light rain (total 4mm), mostly falling on Wed night. Very mild (max 13°C on Tue afternoon, min 6°C on Wed night). Winds increasing (light winds from the SSE on Tue night, fresh winds from the SE by Wed afternoon).

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 53mm), heaviest during Fri afternoon. Later becoming colder with a dusting of snow on Fri night. Mild temperatures (max 8°C on Thu morning, min 1°C on Fri night). Winds decreasing (severe gales from the S on Fri morning, calm by Sat 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Santa Rosa Airport 25 km SSW 219m alt. 2 hours ago	4° C	Clear	Calm (0 kph at 0).	16 km
Graton 35 km SSW 87m alt. 37 minutes ago	8° C	Dry	Calm (0 kph at 34).
Alten wx 36 km S 69m alt. 54 minutes ago	10° C	Dry	Calm (0 kph at 81).
Sebastopol 36 km SSW 129m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 159).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	12° C	Dry	Calm (3 kph at 90).
Camp Meeker wx 37 km SSW 61m alt. 44 minutes ago	9° C	Dry	Calm (2 kph at 15).
Knowles Corner wx 37 km S 88m alt. 54 minutes ago	4° C	Dry	Calm (0 kph at —).
Monte Rio wx 40 km SSW 76m alt. 40 minutes ago	9° C	Dry	Calm (3 kph at 171).
Occidental 43 km SSW 298m alt. 2 hours ago	8° C	Dry	Calm (5 kph at 26).
Cazadero 46 km SW 600m alt. 2 hours ago	15° C	Dry	Calm (0 kph at 88).

* 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.