– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 10 pm Mon 20 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Mon 20 Apr Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Moderate rain (total 20mm) heaviest on Mon night, then becoming colder with a dusting of snow on Tue afternoon. Mild temperatures (max 9°C on Thu afternoon, min 1°C on Tue night). Winds decreasing (strong winds from the SSW on Mon night, calm by Thu afternoon).										Days 5–7 Weather Summary Mostly dry. Mild temperatures (max 9°C on Thu night, min 2°C on Sat night). Wind will be generally light.
		Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	heavy rain	light rain	light snow	some clouds	clear	rain shwrs	rain shwrs	clear	clear	clear	clear	some clouds	some clouds	clear	some clouds	some clouds	some clouds	some clouds	clear
km/h	S	SSW	W	W	SSW	WSW	NNE	NNE	NNW	NE	ESE	S	S	SSW	SW	WSW	SW	WSW	SSW
See all weather maps
cm	—	—	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	13	3	3	—	—	0.3	0.1	—	—	—	—	—	—	—	—	—	—	—	—
max °C	3	4	2	2	2	5	4	5	9	9	8	9	9	6	4	3	3	4	4
min °C	3	3	2	1	2	5	3	4	8	8	8	8	7	4	4	2	2	4	3
chill °C	-4	-2	-3	-5	-1	3	2	1	8	8	8	7	6	2	1	-1	0	2	3

Freezing level m	1850	1850	1600	1500	1600	2000	1950	2450	3200	3300	3050	2900	2750	2250	2250	2100	1850	2100	2300
Cloud base (m)	350	400	600	450	900	1850	8700		2150	8650	8250	1600		400	750	800	850	800

	—	6:26	—	—	6:24	—	—	6:22	—	—	6:22	—	—	6:20	—	—	6:18	—	—
	—	—	7:52	—	—	7:52	—	—	7:53	—	—	7:54	—	—	7:55	—	—	7:57	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Moderate rain (total 20mm) heaviest on Mon night, then becoming colder with a dusting of snow on Tue afternoon. Mild temperatures (max 9°C on Thu afternoon, min 1°C on Tue night). Winds decreasing (strong winds from the SSW on Mon night, calm by Thu afternoon).

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Mild temperatures (max 9°C on Thu night, min 2°C on Sat 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Santa Rosa Airport 25 km SSW 219m alt. 1 hour ago	11° C	Dry and cloudy.	Calm (0 kph at 0).	13 km Low: broken Mid: overcast
Santa Rosa 30 km S 40m alt. 1 hour ago	11° C	Dry	Calm (0 kph at 355).
Cloverdale 34 km W 106m alt. 2 hours ago	11° C	Dry	Calm (0 kph at 119).
Graton 35 km SSW 87m alt. 56 minutes ago	9° C	Dry	Calm (0 kph at 32).
Alten wx 36 km S 69m alt. 48 minutes ago	9° C	Dry	Calm (0 kph at 172).
Sebastopol 36 km SSW 129m alt. 58 minutes ago	11° C	Dry	Calm (0 kph at 185).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	9° C	Dry	Calm (0 kph at 203).
Camp Meeker wx 37 km SSW 61m alt. 54 minutes ago	9° C	Dry	Calm (0 kph at 283).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	11° C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 1 hour ago	9° C	Dry	Calm (0 kph at 350).

* 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.