– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 9 pm Thu 19 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Thu 19 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Freeze-thaw conditions (max 6°C on Sun morning, min -2°C on Thu night). Winds increasing (light winds from the ESE on Thu night, near gales from the S by Sat afternoon).										Days 5–7 Weather Summary Heavy rain (total 47mm), heaviest during Tue morning. Mild temperatures (max 8°C on Mon morning, min 6°C on Sun night). Winds decreasing (gales from the SW on Mon night, light winds from the W by Wed afternoon).
		Friday 20			Saturday 21			Sunday 22			Monday 23			Tuesday 24			Wednesday 25
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	cloudy	some clouds	some clouds	some clouds	some clouds	some clouds	light rain	cloudy	some clouds	some clouds	cloudy	heavy rain	heavy rain	heavy rain	rain shwrs	clear	some clouds	clear
km/h	ESE	SSE	S	SSW	SSE	S	S	SSW	SSW	S	S	SSW	SSW	SW	SW	WSW	SW	W	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	0.3	—	—	—	—	16	16	13	3	—	—	—
max °C	-1	-2	-1	-1	1	1	4	6	6	7	8	8	8	8	8	8	8	8	10
min °C	-2	-2	-2	-2	0	1	2	5	6	6	7	8	7	8	8	8	8	7	9
chill °C	-5	-7	-6	-7	-7	-6	-5	-1	1	3	4	4	1	2	3	5	6	6	9

Freezing level m	1000	1050	1150	900	1350	1450	1950	2500	2750	3200	3300	3150	3200	3000	2950	3000	3200	3100	3150
Cloud base (m)		400	700	700	750	850	550	450	700	5900	5100	2350	350	350	350	650	400	500	9000

	—	6:54	—	—	6:52	—	—	6:52	—	—	6:50	—	—	6:48	—	—	6:48	—	—
	—	—	5:53	—	—	5:54	—	—	5:55	—	—	5:57	—	—	5:58	—	—	5:59	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Freeze-thaw conditions (max 6°C on Sun morning, min -2°C on Thu night). Winds increasing (light winds from the ESE on Thu night, near gales from the S by Sat afternoon).

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 47mm), heaviest during Tue morning. Mild temperatures (max 8°C on Mon morning, min 6°C on Sun night). Winds decreasing (gales from the SW on Mon night, light winds from the W by Wed afternoon).

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	2° C	Clear	Calm (0 kph at 0).	16 km
Santa Rosa 30 km S 40m alt. 1 hour ago	2° C	-	Calm (0 kph at 185).
Cloverdale 34 km W 106m alt. 1 hour ago	2° C	-	Calm (0 kph at 342).
Graton 35 km SSW 87m alt. 28 minutes ago	0° C	-	Calm (2 kph at 32).
Alten wx 36 km S 69m alt. 41 minutes ago	2° C	-	Calm (0 kph at 213).
Sebastopol 36 km SSW 129m alt. 2 hours ago	1° C	-	Calm (0 kph at 325).
Guerneville wx 36 km SW 18m alt. 3 hours ago		-	Calm (0 kph at 242).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	1° C	-	Calm (5 kph at 225).
Camp Meeker wx 37 km SSW 61m alt. 29 minutes ago	1° C	-	Calm (2 kph at 285).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	1° C	-	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.