– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 10 am Sun 10 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sun 10 May Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Warm (max 21°C on Mon afternoon, min 11°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the WSW by Tue night).									Days 4–6 Weather Summary Mostly dry. Very mild (max 16°C on Fri night, min 3°C on Wed night). Winds decreasing (fresh winds from the W on Wed night, calm by Fri morning).
	Sunday 10			Monday 11			Tuesday 12			Wednesday 13			Thursday 14			Friday 15
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	clear	rain shwrs	rain shwrs	clear	some clouds	clear	clear	clear	clear
km/h	S	WNW	SE	SSE	SSW	SSE	S	SSW	WSW	SW	WSW	W	N	WNW	N	WNW	WNW	N
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	0.9	0.1	—	—	—	—	—	—
max °C	19	20	20	19	21	20	18	19	18	8	6	4	5	10	12	12	15	16
min °C	18	20	18	19	20	19	18	18	11	8	4	3	4	9	10	11	14	14
chill °C	18	20	18	19	20	18	17	17	8	4	-1	-2	1	8	8	11	13	14

Freezing level m	4500	4500	4450	4400	4450	4350	4200	4250	4000	2850	2050	1950	3250	3650	3650	3700	3700	3750
Cloud base (m)			9250	9650	9600		9650	9550	5150	750	650		1700	2050

	6:03	—	—	6:01	—	—	6:01	—	—	6:00	—	—	5:58	—	—	5:58	—	—
	—	—	8:09	—	—	8:10	—	—	8:12	—	—	8:13	—	—	8:14	—	—	8:15

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Warm (max 21°C on Mon afternoon, min 11°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the WSW by Tue night).

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 16°C on Fri night, min 3°C on Wed night). Winds decreasing (fresh winds from the W on Wed night, calm by Fri morning).

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	12° C	Mist -.	Light winds from the SSW (6 kph at 200).	5 km Low: overcast
Santa Rosa 30 km S 40m alt. 58 minutes ago	14° C	Dry	Calm (0 kph at 149).
Cloverdale 34 km W 106m alt. 46 minutes ago	19° C	Dry	Calm (3 kph at 126).
Graton 35 km SSW 87m alt. 42 minutes ago	13° C	Dry	Calm (2 kph at 32).
Alten wx 36 km S 69m alt. 54 minutes ago	13° C	Dry	Calm (0 kph at 165).
Sebastopol 36 km SSW 129m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 123).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	17° C	Dry	Calm (2 kph at 90).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	13° C	Dry	Calm (5 kph at 62).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	16° C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 42 minutes ago	14° C	Dry	Calm (2 kph at 21).

* 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.