– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 3 pm Fri 19 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Fri 19 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 87mm), heaviest during Sat night. Mild temperatures (max 9°C on Fri afternoon, min 4°C on Sun night). Mainly severe gales.											Days 5–7 Weather Summary A moderate fall of snow heaviest on Wed morning. Turning milder with heavy rain (total 72mm), heaviest during Wed night. Freeze-thaw conditions (max 6°C on Tue night, min 0°C on Wed morning). Winds increasing (light winds from the SW on Mon afternoon, stormy winds from the S by Tue night).
	Fri 19		Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	mod. rain	rain shwrs	cloudy	light rain	heavy rain	heavy rain	light rain	light rain	cloudy	some clouds	mod. rain	mod. rain	mod. rain	light snow	mod. snow	snow shwrs	light snow
km/h	W	W	WSW	SSW	SW	WSW	WSW	W	WSW	WSW	S	S	SSE	SSW	W	SW	SSE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	4	9	1	2
mm	8	0.3	—	4	56	18	0.6	0.1	—	—	5	9	8	25	—	—	26
max°C	9	8	9	8	9	8	7	6	5	5	5	5	5	6	0	2	3
min°C	9	8	8	8	9	7	7	4	5	5	4	5	5	1	0	0	1
chill°C	4	4	4	5	4	1	2	-2	1	2	0	1	-2	-5	-5	-7	-8

Freezing level (m)	3200	3000	3000	2900	3200	2950	2750	2450	2400	2300	2300	2200	2250	2300	1400	1400	1600
Cloud base (m)	350	400	5650	1700	350	350	400	7000	6400	5650		400	300	300	300	350	300

	—	—	7:24	—	—	7:24	—	—	7:24	—	—	7:24	—	—	7:26	—	—
	4:51	—	—	4:52	—	—	4:52	—	—	4:52	—	—	4:52	—	—	4:53	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Heavy rain (total 87mm), heaviest during Sat night. Mild temperatures (max 9°C on Fri afternoon, min 4°C on Sun night). Mainly severe gales.

Mount Saint Helena Weather (Days 3-6):

A moderate fall of snow heaviest on Wed morning. Turning milder with heavy rain (total 72mm), heaviest during Wed night. Freeze-thaw conditions (max 6°C on Tue night, min 0°C on Wed morning). Winds increasing (light winds from the SW on Mon afternoon, stormy winds from the S by Tue 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 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 -.	Light winds from the S (7 kph at 170).	3 km Low: overcast
Santa Rosa 30 km S 40m alt. 57 minutes ago	16° C	Dry	Calm (0 kph at 139).
Cloverdale 34 km W 106m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 103).
Graton 35 km SSW 87m alt. 48 minutes ago	14° C	Dry	Calm (2 kph at 34).
Alten wx 36 km S 69m alt. 39 minutes ago	14° C	Dry	Calm (0 kph at 131).
Sebastopol 36 km SSW 129m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 161).
Guerneville wx 36 km SW 18m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 51).
Camp Meeker wx 37 km SSW 61m alt. 42 minutes ago	14° C	Dry	Calm (3 kph at 248).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	14° C	Dry	Calm (2 kph at 261).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	13° C	Dry	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.