– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 3 am Tue 17 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Tue 17 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary A moderate fall of snow, heaviest on Wed night. Temperatures will be below freezing (max -1°C on Tue morning, min -4°C on Tue afternoon). Winds decreasing (gales from the WSW on Tue morning, calm by Thu night).									Days 4–6 Weather Summary Heavy rain (total 21mm), heaviest during Sun morning. Freeze-thaw conditions (max 6°C on Sun afternoon, min -2°C on Fri morning). Winds increasing (light winds from the SSE on Fri afternoon, stormy winds from the S by Sat night).
	Tuesday 17			Wednesday 18			Thursday 19			Friday 20			Saturday 21			Sunday 22
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	snow shwrs	some clouds	some clouds	light snow	mod. snow	light snow	some clouds	clear	cloudy	some clouds	some clouds	cloudy	some clouds	mod. rain	mod. rain	light rain	mod. rain
km/h	WSW	WSW	NW	WNW	W	SSW	SE	NNW	NNE	SSE	SSE	SSE	S	SSE	S	SSW	SSW	SW
See all weather maps
cm	5	3	—	—	1	6	4	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	6	7	2	7
max °C	-1	-3	-4	-2	-2	-3	-3	-3	-1	-2	-2	-2	0	1	5	5	6	5
min °C	-2	-4	-4	-3	-3	-3	-3	-3	-2	-2	-2	-2	-1	0	1	5	6	4
chill °C	-11	-14	-14	-8	-7	-7	-9	-12	-6	-6	-5	-7	-9	-8	-8	-3	-1	-3

Freezing level m	1100	950	500	900	1050	800	750	900	200	1050	1100	700	1100	1350	2000	2250	2300	2100
Cloud base (m)	350	400	350	700	850	2450	350	350	350	400	700	1550	750	600	600	400	400	350

	6:58	—	—	6:56	—	—	6:56	—	—	6:54	—	—	6:52	—	—	6:52	—	—
	—	5:50	—	—	5:51	—	—	5:52	—	—	5:53	—	—	5:54	—	—	5:55	—

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 -1°C on Tue morning, min -4°C on Tue afternoon). Winds decreasing (gales from the WSW on Tue morning, calm by Thu night).

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 21mm), heaviest during Sun morning. Freeze-thaw conditions (max 6°C on Sun afternoon, min -2°C on Fri morning). Winds increasing (light winds from the SSE on Fri afternoon, stormy winds from the S by Sat 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	6° C	Thunderstorm - in the vicinity.	Light winds from the N (6 kph at 350).	5 km High: few
lightning 7km SW of Saint Helena 25 km SSE 610m alt. 2 hours ago		Thunderstorm
lightning 11km NNW of Eldridge 27 km SSE 244m alt. 2 hours ago		Thunderstorm
thunderstorm affecting Santa Rosa 28 km S 47m alt. 2 hours ago		Thunderstorm
thunderstorm affecting Roseland 29 km S 31m alt. 2 hours ago		Thunderstorm
Santa Rosa 30 km S 40m alt. 49 minutes ago	5° C	Dry	Calm (0 kph at 19).
thunderstorm affecting Graton 33 km SSW 51m alt. 2 hours ago		Thunderstorm
Cloverdale 34 km W 106m alt. 1 hour ago	5° C	Dry	Calm (5 kph at 84).
thunderstorm affecting Sebastopol 35 km S 34m alt. 2 hours ago		Thunderstorm
Graton 35 km SSW 87m alt. 2 hours ago	6° C	Light rain.	Calm (0 kph at 31).

* 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.