– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 9 pm Wed 17 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Wed 17 Dec 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 16mm), heaviest on Sat afternoon. Very mild (max 15°C on Thu morning, min 10°C on Thu night). Wind will be generally light.										Days 5–7 Weather Summary Heavy rain (total 151mm), heaviest during Mon afternoon. Very mild (max 13°C on Sat night, min 10°C on Sun night). Winds increasing (light winds from the SW on Sun night, strong winds from the S by Tue afternoon).
		Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	rain shwrs	light rain	light rain	rain shwrs	rain shwrs	mod. rain	heavy rain	heavy rain	light rain	heavy rain	heavy rain	heavy rain	heavy rain	light rain	heavy rain	risk tstorm
km/h	W	W	WSW	WSW	SW	WSW	WSW	WSW	SE	SW	SW	SW	SW	S	SSW	SSW	SSE	S	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	0.4	2	3	0.3	0.1	10	21	24	1.3	13	18	33	22	0.8	19	27
max°C	12	15	14	11	12	12	12	14	12	13	13	13	12	12	11	11	11	11	11
min°C	11	13	11	10	11	12	11	13	12	13	13	12	10	11	11	11	11	11	6
chill°C	10	12	9	8	9	11	10	13	12	11	11	11	8	9	9	10	8	7	2

Freezing level (m)	3700	3800	3950	3800	3350	3050	2900	2900	2950	3100	3000	2900	2750	2650	2600	2550	2350	2500	2150
Cloud base (m)		950	800	500	400	400	400	600	550	350	350	350	400	350	350	350	350	350	300

	—	7:22	—	—	7:22	—	—	7:24	—	—	7:24	—	—	7:24	—	—	7:24	—	—
	—	—	4:51	—	—	4:51	—	—	4:52	—	—	4:52	—	—	4:52	—	—	4:52	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Moderate rain (total 16mm), heaviest on Sat afternoon. Very mild (max 15°C on Thu morning, min 10°C on Thu night). Wind will be generally light.

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 151mm), heaviest during Mon afternoon. Very mild (max 13°C on Sat night, min 10°C on Sun night). Winds increasing (light winds from the SW on Sun night, strong winds from the S by Tue afternoon).

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	8° C	Mist -.	Calm (0 kph at 0).	5 km Low: few
Santa Rosa 30 km S 40m alt. 1 hour ago	8° C	Dry	Calm (0 kph at 43).
Cloverdale 34 km W 106m alt. 50 minutes ago	9° C	Dry	Calm (0 kph at 355).
Graton 35 km SSW 87m alt. 54 minutes ago	7° C	Dry	Calm (0 kph at 31).
Alten wx 36 km S 69m alt. 46 minutes ago	9° C	Dry	Calm (3 kph at 165).
Sebastopol 36 km SSW 129m alt. 45 minutes ago	8° C	Dry	Calm (0 kph at 254).
Guerneville wx 36 km SW 18m alt. 1 hour ago	9° C	Dry	Calm (0 kph at 161).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	8° C	Dry	Calm (5 kph at 248).
Camp Meeker wx 37 km SSW 61m alt. 59 minutes ago	8° C	Dry	Calm (2 kph at 262).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	8° 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.