– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 3 am Tue 16 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Tue 16 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Some drizzle, heaviest during Tue night. Very mild (max 18°C on Tue morning, min 10°C on Thu night). Wind will be generally light.									Days 4–6 Weather Summary Heavy rain (total 112mm), heaviest during Sun morning. Very mild (max 14°C on Sat morning, min 11°C on Fri night). Winds increasing (calm on Sat morning, fresh winds from the SW by Sun morning).
	Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	light rain	light rain	rain shwrs	clear	some clouds	some clouds	some clouds	some clouds	light rain	light rain	some clouds	cloudy	heavy rain	heavy rain	heavy rain	mod. rain	heavy rain
km/h	W	W	WSW	W	W	WNW	WNW	WSW	WSW	WSW	SW	W	SSW	SSW	SW	SW	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	0.4	1.3	0.3	—	—	—	—	—	0.1	0.6	—	—	14	24	29	10	35
max°C	18	16	14	15	15	12	15	15	11	12	12	12	14	13	13	13	13	13
min°C	15	14	13	13	12	11	14	12	10	12	12	11	13	13	13	13	13	12
chill°C	15	13	11	12	12	10	14	11	8	11	11	10	13	12	11	10	11	10

Freezing level (m)	3600	3600	3450	3450	3750	3650	3850	3850	3750	3500	3150	3100	3200	3200	3150	3100	3000	2850
Cloud base (m)	2450	650	450	400		3950	1000	800	500	500	400	650	500	500	350	350	350	350

	7:20	—	—	7:22	—	—	7:22	—	—	7:22	—	—	7:24	—	—	7:24	—	—
	—	4:50	—	—	4:50	—	—	4:51	—	—	4:51	—	—	4:52	—	—	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 10°C on Thu night). Wind will be generally light.

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 112mm), heaviest during Sun morning. Very mild (max 14°C on Sat morning, min 11°C on Fri night). Winds increasing (calm on Sat morning, fresh winds from the SW by Sun morning).

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. 3 hours ago	4° C	Mist -.	Calm (0 kph at 0).	6 km
Santa Rosa 30 km S 40m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 46).
Cloverdale 34 km W 106m alt. 40 minutes ago	7° C	Dry	Calm (0 kph at 135).
Graton 35 km SSW 87m alt. 45 minutes ago	4° C	Dry	Calm (0 kph at 32).
Alten wx 36 km S 69m alt. 47 minutes ago	5° C	Dry	Calm (2 kph at 162).
Sebastopol 36 km SSW 129m alt. 42 minutes ago	6° C	Dry	Calm (0 kph at 232).
Guerneville wx 36 km SW 18m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 170).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 135).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	6° C	Dry	Calm (0 kph at 272).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	7° 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.