– Lat/Long: 38.67° N 122.63° W

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

Issued: 10 pm Sun 10 May Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Warm (max 21°C on Mon afternoon, min 5°C on Wed morning). Winds increasing (calm on Sun night, fresh winds from the W by Tue night).										Days 5–7 Weather Summary Mostly dry. Very mild (max 17°C on Fri afternoon, min 6°C on Wed night). Wind will be generally light.
		Monday 11			Tuesday 12			Wednesday 13			Thursday 14			Friday 15			Saturday 16
	night	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	rain shwrs	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	clear
km/h	SE	SSE	S	S	S	SW	W	W	WNW	ENE	NNW	NW	NNW	NW	WNW	NNW	NW	WNW	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	0.2	—	—	—	—	—	—	—	—	—	—	—
max °C	20	20	21	20	18	18	16	6	7	7	10	15	16	16	17	17	14	16	15
min °C	19	19	20	18	18	18	8	5	7	6	8	13	15	15	17	15	14	15	12
chill °C	19	19	20	17	17	18	4	0	3	2	5	13	15	15	16	13	12	14	9

Freezing level m	4450	4450	4450	4300	4200	4200	3700	2100	2250	3150	3750	4000	4050	3850	3900	3750	3550	3700	3400
Cloud base (m)	9200	9650	9650			9500		500	2150						9350	8600			8350

	—	6:01	—	—	6:01	—	—	6:00	—	—	5:58	—	—	5:58	—	—	5:58	—	—
	—	—	—	8:10	—	—	8:12	—	—	8:13	—	—	8:14	—	—	8:15	—	—	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 5°C on Wed morning). Winds increasing (calm on Sun night, fresh winds from the W by Tue night).

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 17°C on Fri afternoon, min 6°C on Wed night). Wind will be generally light.

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	Clear	Calm (0 kph at 0).	14 km
Santa Rosa 30 km S 40m alt. 2 hours ago	11° C	Dry	Calm (0 kph at 107).
Cloverdale 34 km W 106m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 54).
Graton 35 km SSW 87m alt. 2 hours ago	9° C	Dry	Calm (0 kph at 34).
Alten wx 36 km S 69m alt. 2 hours ago	9° C	Dry	Calm (2 kph at 120).
Sebastopol 36 km SSW 129m alt. 1 hour ago	10° C	Dry	Calm (0 kph at 211).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	10° C	Dry	Calm (0 kph at 225).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	11° C	Dry	Calm (0 kph at 307).
Knowles Corner wx 37 km S 88m alt. 2 hours ago	11° C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 2 hours ago	10° C	Dry	Calm (0 kph at 1).

* 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.