– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 3 pm Wed 18 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Wed 18 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary A moderate fall of snow, heaviest on Wed night. Temperatures will be below freezing (max 0°C on Sat morning, min -3°C on Wed afternoon). Winds decreasing (gales from the NW on Thu afternoon, calm by Fri afternoon).											Days 5–7 Weather Summary Heavy rain (total 79mm), heaviest during Mon night. Freeze-thaw conditions (max 8°C on Mon night, min 0°C on Sat afternoon). Mainly gales.
	Wed 18		Thursday 19			Friday 20			Saturday 21			Sunday 22			Monday 23
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	snow shwrs	mod. snow	some clouds	clear	some clouds	cloudy	some clouds	some clouds	cloudy	some clouds	light rain	light rain	light rain	light rain	light rain	mod. rain	heavy rain
km/h	W	S	NW	NW	NNW	SE	SSW	S	SSE	SSE	S	SSW	S	SSW	SSW	S	SSW
See all weather maps
cm	1	9	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	0.4	0.7	1	0.4	0.7	5	64
max °C	-3	-1	-3	-1	-1	-3	-2	-1	0	1	4	5	6	6	7	7	8
min °C	-3	-3	-3	-2	-3	-3	-3	-3	0	0	2	5	6	6	7	6	7
chill °C	-10	-10	-12	-12	-7	-7	-6	-9	-7	-7	-6	-2	0	0	3	0	2

Freezing level m	1000	1050	900	1100	700	900	1050	800	1250	1400	1850	2100	2250	2700	2800	2800	3000
Cloud base (m)	400	400	450	500	400	400	550	700	800	800	600	500	450	700	550	400	350

	—	—	6:56	—	—	6:54	—	—	6:52	—	—	6:52	—	—	6:50	—	—
	5:51	—	—	5:52	—	—	5:53	—	—	5:54	—	—	5:55	—	—	5:57	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: A moderate fall of snow, heaviest on Wed night. Temperatures will be below freezing (max 0°C on Sat morning, min -3°C on Wed afternoon). Winds decreasing (gales from the NW on Thu afternoon, calm by Fri afternoon).

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 79mm), heaviest during Mon night. Freeze-thaw conditions (max 8°C on Mon night, min 0°C on Sat afternoon). Mainly gales.

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	6° C	Dry and cloudy.	Light winds from the SSE (6 kph at 160).	16 km Low: few Mid: broken High: overcast
Santa Rosa 30 km S 40m alt. 36 minutes ago	7° C	Dry	Calm (0 kph at 161).
Cloverdale 34 km W 106m alt. 41 minutes ago	5° C	Dry	Calm (0 kph at 257).
Graton 35 km SSW 87m alt. 40 minutes ago	6° C	Dry	Calm (0 kph at 35).
Alten wx 36 km S 69m alt. 2 hours ago	6° C	Dry	Calm (0 kph at 106).
Sebastopol 36 km SSW 129m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 179).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	6° C	Dry	Calm (0 kph at 225).
Camp Meeker wx 37 km SSW 61m alt. 44 minutes ago	4° C	Dry	Calm (0 kph at 279).
Knowles Corner wx 37 km S 88m alt. 50 minutes ago	7° C	Dry	Calm (0 kph at —).
Monte Rio wx 40 km SSW 76m alt. 1 hour ago		Dry	Calm (0 kph at 75).

* 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.