– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 4 pm Wed 20 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Wed 20 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 morning). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Very mild (max 17°C on Sun afternoon, min 10°C on Tue morning). Winds increasing (calm on Sun night, strong winds from the NW by Mon night).
	Wed 20		Thursday 21			Friday 22			Saturday 23			Sunday 24			Monday 25
	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	SSW	SSE	SW	N	ESE	SW	SSW	S	SSW	S	S	WSW	W	NW	WNW	NW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	18	18	18	19	19	18	18	18	16	16	16	15	17	16	16	17	17
min °C	18	18	18	19	18	17	18	16	15	15	15	15	16	15	15	17	15
chill °C	18	18	18	19	18	17	18	16	14	14	14	14	16	15	15	17	14

Freezing level m	3700	3850	4000	4100	4000	4000	4100	4050	3950	4000	4000	4000	4050	4050	4100	4200	4400
Cloud base (m)		8900													8950	9400

	—	—	5:54	—	—	5:52	—	—	5:52	—	—	5:52	—	—	5:50	—	—
	—	8:19	—	—	8:20	—	—	8:21	—	—	8:22	—	—	8:22	—	—	8:22

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 morning). Wind will be generally light.

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 17°C on Sun afternoon, min 10°C on Tue morning). Winds increasing (calm on Sun night, strong winds from the NW by Mon 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	24° C	Clear	Light winds from the S (15 kph at 170).	16 km
Santa Rosa 30 km S 40m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 119).
Cloverdale 34 km W 106m alt. 1 hour ago	28° C	Dry	Calm (2 kph at 161).
Graton 35 km SSW 87m alt. 53 minutes ago	19° C	Dry	Calm (0 kph at 35).
Alten wx 36 km S 69m alt. 1 hour ago	16° C	Dry	Calm (0 kph at 111).
Sebastopol 36 km SSW 129m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 214).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	24° C	Dry	Calm (5 kph at 270).
Camp Meeker wx 37 km SSW 61m alt. 45 minutes ago	19° C	Dry	Calm (0 kph at 280).
Knowles Corner wx 37 km S 88m alt. 56 minutes ago	22° C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 2 hours ago	22° C	Dry	Calm (0 kph at 306).

* 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.