– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 9 pm Sun 14 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Sun 14 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Some drizzle, heaviest during Tue afternoon. Very mild (max 14°C on Sun night, min 8°C on Wed morning). Winds increasing (light winds from the WSW on Sun night, near gales from the W by Tue night).										Days 5–7 Weather Summary Light rain (total 8mm), mostly falling on Sat afternoon. Very mild (max 12°C on Wed night, min 6°C on Fri morning). Winds decreasing (strong winds from the WSW on Fri afternoon, light winds from the SSW by Sat afternoon).
		Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	some clouds	cloudy	light rain	light rain	rain shwrs	clear	clear	some clouds	some clouds	clear	rain shwrs	light rain	rain shwrs	light rain	light rain	heavy rain
km/h	W	WNW	NW	NW	WNW	W	W	W	WNW	NW	NW	W	WSW	WSW	WSW	WSW	WSW	W	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	0.8	0.8	0.2	—	—	—	—	—	0.1	3	2	0.1	3	10
max°C	14	13	14	13	13	11	11	9	12	12	10	10	10	8	9	9	10	8	9
min°C	13	13	13	13	12	11	10	8	10	9	9	9	7	6	8	8	9	7	7
chill°C	12	11	10	11	9	9	6	4	6	5	6	6	2	1	3	4	6	6	4

Freezing level (m)	3850	3750	3850	3700	3400	3400	3350	3450	3700	3700	3850	3850	3800	3650	3250	3350	3100	2800	2950
Cloud base (m)	5350	5450			3250	1800	400	500			950	850		450	550	400	550	1850	350

	—	7:20	—	—	7:20	—	—	7:22	—	—	7:22	—	—	7:22	—	—	7:24	—	—
	—	—	4:50	—	—	4:50	—	—	4:50	—	—	4:51	—	—	4:51	—	—	4:52	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Some drizzle, heaviest during Tue afternoon. Very mild (max 14°C on Sun night, min 8°C on Wed morning). Winds increasing (light winds from the WSW on Sun night, near gales from the W by Tue night).

Mount Saint Helena Weather (Days 3-6):

Light rain (total 8mm), mostly falling on Sat afternoon. Very mild (max 12°C on Wed night, min 6°C on Fri morning). Winds decreasing (strong winds from the WSW on Fri afternoon, light winds from the SSW by Sat afternoon).

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	5° C	Fog -.	Calm (0 kph at 0).	0 km
Santa Rosa 30 km S 40m alt. 50 minutes ago	6° C	Dry	Calm (0 kph at 5).
Cloverdale 34 km W 106m alt. 21 minutes ago	3° C	Dry	Calm (0 kph at 109).
Graton 35 km SSW 87m alt. 1 hour ago	4° C	Dry	Calm (2 kph at 32).
Alten wx 36 km S 69m alt. 30 minutes ago	4° C	Dry	Calm (3 kph at 95).
Sebastopol 36 km SSW 129m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 315).
Guerneville wx 36 km SW 18m alt. 1 hour ago	5° C	Dry	Calm (0 kph at 159).
Camp Meeker wx 37 km SSW 61m alt. 46 minutes ago	3° C	Dry	Calm (2 kph at 338).
Camp Meeker wx 37 km SSW 61m alt. 28 minutes ago	3° C	Dry	Calm (3 kph at 26).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	6° C	Dry	Calm (0 kph at —).

* 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.