– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 4 pm Mon 18 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Mon 18 Aug 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 24°C on Wed afternoon, min 17°C on Mon afternoon). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 28°C on Fri afternoon, min 25°C on Thu night). Wind will be generally light.
	Mon 18		Tuesday 19			Wednesday 20			Thursday 21			Friday 22			Saturday 23
	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	some clouds	some clouds	clear	clear	clear	clear	clear	clear
km/h	WSW	SSE	S	W	NW	N	WNW	E	ENE	WSW	SE	SSE	SSW	S	S	SSW	SSE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	18	18	18	21	21	21	24	24	24	26	25	25	28	27	26	28	27
min°C	17	17	17	20	20	20	24	23	23	26	25	25	27	26	25	27	26
chill°C	17	17	17	20	20	20	24	23	23	26	25	25	27	26	25	27	26

Freezing level (m)	4600	4400	4400	4400	4500	4650	4850	4950	5000	5150	5200	5150	5150	5050	5050	5100	5100
Cloud base (m)									9650		7350

	—	—	6:26	—	—	6:28	—	—	6:28	—	—	6:30	—	—	6:31	—	—
	—	8:00	—	7:59	—	—	7:58	—	—	7:57	—	—	7:54	—	—	7:53	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Warm (max 24°C on Wed afternoon, min 17°C on Mon afternoon). Wind will be generally light.

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Warm (max 28°C on Fri afternoon, min 25°C on Thu 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Santa Rosa Airport 25 km SSW 219m alt. 2 hours ago	26° C	Clear	Light winds from the SE (15 kph at 140).	16 km
Santa Rosa 30 km S 40m alt. 40 minutes ago	19° C	Dry	Calm (5 kph at 58).
Cloverdale 34 km W 106m alt. 2 hours ago	28° C	Dry	Wind obs. (10 kph from 268 degs) was rejected.
Graton 35 km SSW 87m alt. 1 hour ago	24° C	Dry	Calm (0 kph at 294).
Alten wx 36 km S 69m alt. 2 hours ago	20° C	Dry	Calm (0 kph at 99).
Sebastopol 36 km SSW 129m alt. 2 hours ago	22° C	Dry	Calm (0 kph at 234).
Guerneville wx 36 km SW 18m alt. 2 hours ago	19° C	Dry	Calm (0 kph at 128).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	18° C	Dry	Calm (5 kph at 225).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	18° C	Dry	Calm (2 kph at 247).
Knowles Corner wx 37 km S 88m alt. 48 minutes ago	18° C	Dry	Calm (0 kph at —).

* 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.