– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 4 pm Thu 21 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Thu 21 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. Very mild (max 19°C on Thu afternoon, min 15°C on Sat afternoon). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Very mild (max 16°C on Sun afternoon, min 7°C on Tue morning). Winds decreasing (strong winds from the WNW on Mon night, light winds from the NNW by Wed morning).
	Thu 21		Friday 22			Saturday 23			Sunday 24			Monday 25			Tuesday 26
	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
km/h	SW	ENE	E	SW	SSW	S	SSW	S	SSE	SSW	SSW	SW	W	WNW	N	NW	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	19	19	18	19	18	16	17	16	15	16	15	14	14	12	8	12	12
min °C	19	18	18	19	16	16	15	15	15	15	14	14	13	9	7	11	11
chill °C	19	18	18	19	16	16	14	13	14	14	13	14	11	5	5	10	8

Freezing level m	4100	3950	3950	4050	4000	3950	3950	3950	3900	4000	3900	3900	4000	3850	3300	3250	3450
Cloud base (m)					300			350	9350	9400	8250		9150

	—	—	5:52	—	—	5:52	—	—	5:52	—	—	5:50	—	—	5:50	—	—
	—	8:20	—	—	8:21	—	—	8:22	—	—	8:22	—	—	8:22	—	—	8:23

Mount Saint Helena Weather (Days 0-3):

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

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 16°C on Sun afternoon, min 7°C on Tue morning). Winds decreasing (strong winds from the WNW on Mon night, light winds from the NNW by Wed 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. 2 hours ago	20° C	Clear	Light winds from the SSE (17 kph at 160).	16 km
Santa Rosa 30 km S 40m alt. 1 hour ago	15° C	Dry	Calm (0 kph at 111).
Cloverdale 34 km W 106m alt. 2 hours ago	27° C	Dry	Calm (2 kph at 142).
Graton 35 km SSW 87m alt. 2 hours ago	22° C	Dry	Wind obs. (8 kph from 34 degs) was rejected.
Alten wx 36 km S 69m alt. 47 minutes ago	12° C	Dry	Calm (2 kph at 90).
Sebastopol 36 km SSW 129m alt. 40 minutes ago	13° C	Dry	Calm (3 kph at 213).
Camp Meeker wx 37 km SSW 61m alt. 31 minutes ago	18° C	Dry	Calm (0 kph at 248).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	19° C	Dry	Calm (0 kph at 334).
Knowles Corner wx 37 km S 88m alt. 41 minutes ago	19° C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 58 minutes ago	19° C	Dry	Calm (0 kph at 324).

* 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.