– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 3 pm Mon 15 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Mon 15 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 night. Very mild (max 18°C on Tue morning, min 11°C on Wed night). Wind will be generally light.											Days 5–7 Weather Summary Heavy rain (total 50mm), heaviest during Sun morning. Very mild (max 15°C on Thu afternoon, min 10°C on Thu night). Wind will be generally light.
	Mon 15		Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	light rain	light rain	rain shwrs	clear	clear	some clouds	some clouds	some clouds	some clouds	light rain	cloudy	light rain	heavy rain	mod. rain
km/h	WNW	NW	WNW	WSW	WSW	W	NW	WNW	WNW	W	WSW	WSW	WSW	W	S	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	0.3	1.3	0.1	—	—	—	—	—	—	1	—	1	17	10
max°C	16	14	18	17	15	15	15	12	15	15	11	13	12	12	13	13	13
min°C	14	14	15	15	13	14	12	11	13	12	10	11	12	12	13	13	12
chill°C	14	13	15	14	11	13	11	10	12	11	8	10	10	11	12	11	10

Freezing level (m)	3850	3700	3550	3600	3500	3600	3700	3750	3850	3900	3700	3550	3300	3300	3150	3150	3150
Cloud base (m)	5900		2350	950	450	500			900	800	400	450	500	500	950	450	350

	—	—	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 night. Very mild (max 18°C on Tue morning, min 11°C on Wed night). Wind will be generally light.

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 50mm), heaviest during Sun morning. Very mild (max 15°C on Thu afternoon, min 10°C on Thu night). Wind will be generally light.

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	11° C	Clear	Calm (0 kph at 0).	16 km
Santa Rosa 30 km S 40m alt. 33 minutes ago	11° C	Dry	Calm (0 kph at 46).
Cloverdale 34 km W 106m alt. 1 hour ago	13° C	Dry	Calm (2 kph at 145).
Graton 35 km SSW 87m alt. 1 hour ago	9° C	Dry	Calm (0 kph at 36).
Alten wx 36 km S 69m alt. 1 hour ago	9° C	Dry	Calm (0 kph at 114).
Sebastopol 36 km SSW 129m alt. 50 minutes ago	8° C	Dry	Calm (0 kph at 223).
Guerneville wx 36 km SW 18m alt. 2 hours ago	11° C	Dry	Calm (0 kph at 163).
Camp Meeker wx 37 km SSW 61m alt. 36 minutes ago	9° C	Dry	Calm (0 kph at 248).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	10° C	Dry	Calm (0 kph at 314).
Knowles Corner wx 37 km S 88m alt. 51 minutes ago	11° 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.