– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 9 am Fri 20 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 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 decreasing (strong winds from the S on Sat afternoon, light winds from the S by Sun night).									Days 4–6 Weather Summary Heavy rain (total 35mm), heaviest during Tue afternoon. Mild temperatures (max 9°C on Tue afternoon, min 7°C on Mon morning). Winds decreasing (near gales from the SSW on Tue morning, calm by Wed afternoon).
	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	cloudy	some clouds	some clouds	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	cloudy	heavy rain	heavy rain	heavy rain	rain shwrs	cloudy	some clouds	clear
km/h	SSE	S	S	SSE	S	S	S	SSW	SSW	S	SSW	SSW	SSW	WSW	W	W	W	W
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	13	10	11	0.8	—	—	—
max °C	-2	-1	-1	0	1	3	6	6	6	8	8	7	8	9	8	8	8	9
min °C	-2	-2	-2	0	1	1	5	6	6	7	7	7	8	8	7	8	8	8
chill °C	-7	-6	-7	-7	-6	-6	-1	1	2	4	2	2	2	4	3	5	6	6

Freezing level m	1100	1200	950	1350	1400	1900	2500	2750	3200	3200	3150	3100	3150	3050	2950	2900	3250	3300
Cloud base (m)	650	750	1650	750	850	550	600	800	6250	2400	2200	400	350	350	550	7000	5600	5550

	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 decreasing (strong winds from the S on Sat afternoon, light winds from the S by Sun night).

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 35mm), heaviest during Tue afternoon. Mild temperatures (max 9°C on Tue afternoon, min 7°C on Mon morning). Winds decreasing (near gales from the SSW on Tue morning, calm by Wed afternoon).

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. 3 hours ago	10° C	-	Light winds from the SSE (6 kph at 150).	16 km Low: few Mid: few
Santa Rosa 30 km S 40m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 57).
Cloverdale 34 km W 106m alt. 2 hours ago	12° C	Dry	Wind obs. (6 kph from 208 degs) was rejected.
Graton 35 km SSW 87m alt. 3 hours ago	10° C	Dry	Calm (0 kph at 32).
Alten wx 36 km S 69m alt. 52 minutes ago	12° C	Dry	Calm (3 kph at 168).
Sebastopol 36 km SSW 129m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 138).
Camp Meeker wx 37 km SSW 61m alt. 48 minutes ago	15° C	Dry	Wind obs. (8 kph from 113 degs) was rejected.
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	10° C	Dry	Calm (2 kph at 50).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	11° C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 42 minutes ago	8° C	Dry	Calm (0 kph at 291).

* 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.