– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 10 am Thu 13 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Thu 13 Aug 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 19°C on Sat afternoon, min 15°C on Fri morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 21°C on Sun afternoon, min 18°C on Sun morning). Winds increasing (light winds from the SW on Mon afternoon, fresh winds from the WNW by Tue night).
	Thursday 13			Friday 14			Saturday 15			Sunday 16			Monday 17			Tuesday 18
	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	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear
Cloud base (m)	9050	9400	300		9400			9500	9700	9100		9100	7750			9350	9400
km/h	S	SW	SSW	SSE	SSW	S	SSE	SSW	S	SE	SSW	S	SW	W	NW	WNW	W	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	17	18	18	15	17	17	16	19	18	19	21	20	19	21	20	20	21	20
min °C	17	16	16	15	16	16	15	18	18	18	20	19	19	20	20	20	21	18
chill °C	17	16	16	14	16	16	14	18	18	18	20	19	19	20	20	20	21	18

Freezing level m	4300	4400	4250	4150	4200	4200	4250	4350	4400	4450	4500	4500	4500	4550	4750	4700	4800	4900

	6:22	—	—	6:22	—	—	6:24	—	—	6:24	—	—	6:24	—	—	6:26	—	—
	—	—	8:07	—	—	8:06	—	—	8:05	—	—	8:02	—	—	8:01	—	—	8:00

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Very mild (max 19°C on Sat afternoon, min 15°C on Fri morning). Wind will be generally light.

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Warm (max 21°C on Sun afternoon, min 18°C on Sun morning). Winds increasing (light winds from the SW on Mon afternoon, fresh winds from the WNW by Tue night).

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	23° C	Dry and partly cloudy.	Light winds from the SW.(Wind varies from 200 to 260 degs) (15 kph at 220).	16 km Low: few Mid: scattered
Cloverdale 34 km W 106m alt. 1 hour ago	24° C	Dry	Wind obs. (6 kph from 293 degs) was rejected.
Graton 35 km SSW 87m alt. 1 hour ago	21° C	Dry	Wind obs. (6 kph from 34 degs) was rejected.
Alten wx 36 km S 69m alt. 1 hour ago	21° C	Dry	Calm (5 kph at 183).
Sebastopol 36 km SSW 129m alt. 57 minutes ago	19° C	Dry	Wind obs. (6 kph from 159 degs) was rejected.
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	26° C	Dry	Wind obs. (6 kph from 248 degs) was rejected.
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	19° C	Dry	Wind obs. (6 kph from 294 degs) was rejected.
Knowles Corner wx 37 km S 88m alt. 1 hour ago	19° C	Dry	Calm (2 kph at 23).
Camp Meeker wx 39 km SSW 61m alt. 36 minutes ago	18° C	Dry	Wind obs. (11 kph from 12 degs) was rejected.
Cotati 41 km S 94m alt. 1 hour ago	21° C	Dry	Calm (3 kph at 288).

* 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.