– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 3 am Fri 20 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Fri 20 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Freeze-thaw conditions (max 6°C on Sun morning, min -2°C on Fri morning). Winds increasing (light winds from the S on Fri afternoon, near gales from the S by Sat afternoon).									Days 4–6 Weather Summary Heavy rain (total 63mm), heaviest during Tue morning. Mild temperatures (max 9°C on Wed night, min 7°C on Mon morning). Winds decreasing (gales from the SW on Mon night, light winds from the SW by Tue night).
	Friday 20			Saturday 21			Sunday 22			Monday 23			Tuesday 24			Wednesday 25
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	some clouds	some clouds	some clouds	light rain	light rain	light rain	some clouds	cloudy	light rain	heavy rain	heavy rain	heavy rain	light rain	some clouds	rain shwrs	light rain
km/h	SE	S	S	SSE	S	S	SSW	SSW	SSW	S	SSW	SSW	SW	SW	SW	S	S	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	0.1	0.2	0.1	—	—	0.2	18	23	19	2	—	0.1	0.3
max °C	-2	-1	-1	1	1	3	6	6	6	8	7	8	8	8	8	8	8	9
min °C	-2	-2	-2	0	1	1	5	6	6	7	7	7	8	8	8	8	8	8
chill °C	-7	-6	-7	-7	-7	-6	-1	1	2	4	2	2	2	3	5	6	6	6

Freezing level m	1050	1150	900	1350	1450	2000	2300	2600	3150	3200	3100	3050	3050	3050	3050	3150	3150	3150
Cloud base (m)	500	700	800	900	850	600	550	750	6450		1850	350	350	350	400	450	700	1700

	6:54	—	—	6:52	—	—	6:52	—	—	6:50	—	—	6:48	—	—	6:48	—	—
	—	5:53	—	—	5:54	—	—	5:55	—	—	5:57	—	—	5:58	—	—	5:59	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Freeze-thaw conditions (max 6°C on Sun morning, min -2°C on Fri morning). Winds increasing (light winds from the S on Fri afternoon, near gales from the S by Sat afternoon).

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 63mm), heaviest during Tue morning. Mild temperatures (max 9°C on Wed night, min 7°C on Mon morning). Winds decreasing (gales from the SW on Mon night, light winds from the SW by Tue 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	0° C	Clear	Light winds from the W (6 kph at 270).	16 km
Santa Rosa 30 km S 40m alt. 53 minutes ago	6° C	Dry	Calm (0 kph at 184).
Cloverdale 34 km W 106m alt. 22 minutes ago	4° C	Dry	Wind obs. (6 kph from 308 degs) was rejected.
Graton 35 km SSW 87m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 34).
Alten wx 36 km S 69m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 114).
Sebastopol 36 km SSW 129m alt. 53 minutes ago	4° C	Dry	Calm (0 kph at 321).
Guerneville wx 36 km SW 18m alt. 3 hours ago		-	Calm (0 kph at 238).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	7° C	Dry	Calm (5 kph at 68).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	5° C	Dry	Calm (3 kph at 89).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	2° C	-	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.