– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 9 am Mon 22 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Mon 22 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 59mm), heaviest during Wed night. Very mild (max 12°C on Mon morning, min 7°C on Tue night). Winds increasing (light winds from the SW on Mon afternoon, gales from the S by Tue night).									Days 4–6 Weather Summary Heavy rain (total 22mm), heaviest during Thu night. Mild temperatures (max 9°C on Sat morning, min 6°C on Thu afternoon). Winds decreasing (strong winds from the SSW on Thu morning, light winds from the N by Fri night).
	Monday 22			Tuesday 23			Wednesday 24			Thursday 25			Friday 26			Saturday 27
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	light rain	light rain	light rain	light rain	heavy rain	light rain	mod. rain	heavy rain	light rain	light rain	mod. rain	light rain	light rain	rain shwrs	some clouds	clear	clear
km/h	SW	SW	S	S	SSE	S	SSE	SE	SSE	S	SSW	SSW	SSW	WSW	NW	NE	NE	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.5	1.1	4	1	1	18	0.1	6	27	4	4	8	4	1.5	0.2	—	—	—
max °C	12	12	11	12	11	12	9	9	9	7	7	7	8	8	7	9	9	7
min °C	12	11	11	11	11	7	8	9	8	7	6	6	8	7	6	8	7	6
chill °C	11	10	10	8	8	5	6	6	3	2	1	1	5	5	4	6	5	4

Freezing level m	2700	2650	2650	2600	2200	2400	1850	1900	1850	1500	1450	1450	1700	1650	1600	1650	1800	2450
Cloud base (m)	400	650	450	350	500	300	550	650	550	550	400	350	350	400	650	800	850

	7:24	—	—	7:24	—	—	7:26	—	—	7:26	—	—	7:26	—	—	7:26	—	—
	—	4:52	—	—	4:52	—	—	4:53	—	—	4:53	—	—	4:54	—	—	4:55	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Heavy rain (total 59mm), heaviest during Wed night. Very mild (max 12°C on Mon morning, min 7°C on Tue night). Winds increasing (light winds from the SW on Mon afternoon, gales from the S by Tue night).

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 22mm), heaviest during Thu night. Mild temperatures (max 9°C on Sat morning, min 6°C on Thu afternoon). Winds decreasing (strong winds from the SSW on Thu morning, light winds from the N by Fri night).

This table gives the weather forecast for Mount Saint Helena at the specific elevation of 500 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Santa Rosa Airport 25 km SSW 219m alt. 2 hours ago	14° C	Mist -.	Calm (0 kph at 0).	16 km Low: broken Mid: broken
Cloverdale 34 km W 106m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 175).
Graton 35 km SSW 87m alt. 2 hours ago	13° C	Dry	Calm (0 kph at 31).
Alten wx 36 km S 69m alt. 2 hours ago	13° C	Dry	Calm (0 kph at 253).
Sebastopol 36 km SSW 129m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 296).
Guerneville wx 36 km SW 18m alt. 1 hour ago		-	Calm (0 kph at 125).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 293).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 354).
Knowles Corner wx 37 km S 88m alt. 48 minutes ago	14° C	Dry	Calm (0 kph at —).
Monte Rio wx 40 km SSW 76m alt. 52 minutes ago	14° C	Dry	Calm (0 kph at 355).

* 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.