– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 10 am Sat 16 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sat 16 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. Very mild (max 17°C on Mon afternoon, min 7°C on Sun morning). Winds increasing (calm on Sun morning, gales from the NNE by Sun night).									Days 4–6 Weather Summary Mostly dry. Warm (max 20°C on Thu afternoon, min 16°C on Tue morning). Wind will be generally light.
	Saturday 16			Sunday 17			Monday 18			Tuesday 19			Wednesday 20			Thursday 21
	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	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	NNW	NNW	N	N	NNE	NNE	NNE	N	NNE	NE	WSW	WSW	SSE	SSW	SE	E	SW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	11	13	14	10	12	13	12	17	16	16	18	18	18	19	19	19	20	19
min °C	11	13	11	7	10	10	11	15	15	16	18	17	17	19	18	18	20	19
chill °C	9	12	11	5	6	5	7	13	14	16	18	17	17	19	18	18	20	19

Freezing level m	3350	3600	3450	3550	2800	3100	3150	3150	3300	3700	3850	3900	3950	4100	4100	4150	4250	4250
Cloud base (m)	9150			9150								9000			8800

	5:58	—	—	5:56	—	—	5:56	—	—	5:54	—	—	5:54	—	—	5:54	—	—
	—	—	8:15	—	—	8:16	—	—	8:17	—	—	8:17	—	—	8:19	—	—	8:20

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Very mild (max 17°C on Mon afternoon, min 7°C on Sun morning). Winds increasing (calm on Sun morning, gales from the NNE by Sun night).

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Warm (max 20°C on Thu afternoon, min 16°C on Tue morning). 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. 2 hours ago	24° C	Clear	Moderate winds from the NNW (24 kph at 340).	16 km
Cloverdale 34 km W 106m alt. 44 minutes ago	24° C	Dry	Light winds from the NNE (16 kph at 13).
Graton 35 km SSW 87m alt. 58 minutes ago	25° C	Dry	Calm (5 kph at 31).
Alten wx 36 km S 69m alt. 1 hour ago	26° C	Dry	Calm (0 kph at 195).
Sebastopol 36 km SSW 129m alt. 2 hours ago	26° C	Dry	Calm (0 kph at 11).
Camp Meeker wx 37 km SSW 61m alt. 52 minutes ago	25° C	Dry	Calm (0 kph at 306).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	26° C	Dry	Calm (2 kph at 90).
Camp Meeker wx 39 km SSW 61m alt. 31 minutes ago	23° C	Dry	Calm (0 kph at 85).
Cotati 41 km S 94m alt. 1 hour ago	22° C	Dry	Calm (5 kph at 286).
Occidental 43 km SSW 298m alt. 33 minutes ago	21° C	Dry	Wind obs. (6 kph from 267 degs) was rejected.

* 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.