– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 3 am Sat 21 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Sat 21 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 8mm), mostly falling on Mon night. Freeze-thaw conditions (max 9°C on Mon afternoon, min 0°C on Sat morning). Winds increasing (light winds from the S on Mon morning, near gales from the SSW by Mon night).									Days 4–6 Weather Summary Heavy rain (total 24mm), heaviest during Tue afternoon. Very mild (max 13°C on Thu night, min 6°C on Tue morning). Winds decreasing (gales from the SW on Tue morning, calm by Wed afternoon).
	Saturday 21			Sunday 22			Monday 23			Tuesday 24			Wednesday 25			Thursday 26
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	cloudy	cloudy	some clouds	some clouds	cloudy	mod. rain	mod. rain	heavy rain	rain shwrs	some clouds	clear	clear	clear	some clouds	some clouds
km/h	S	S	S	SSW	SSW	S	S	S	SSW	SSW	SW	SW	W	NW	WSW	WNW	NNW	NW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	8	7	16	1	—	—	—	—	—	—
max °C	1	2	4	6	6	6	8	9	9	8	9	8	9	9	10	11	12	13
min °C	0	1	2	5	6	6	8	9	7	6	9	7	8	9	9	11	12	12
chill °C	-7	-6	-5	-1	1	2	6	6	2	-1	4	3	5	7	8	10	12	12

Freezing level m	1350	1450	2100	2200	2900	3250	3300	3000	3200	3500	3150	3250	3200	3050	3300	3450	3600	3550
Cloud base (m)	2100	800	650	550	650	850	6250	3250	900	350	350	350	4550	3550		5250	5000	9200

	6:52	—	—	6:52	—	—	6:50	—	—	6:48	—	—	6:48	—	—	6:46	—	—
	—	5:54	—	—	5:55	—	—	5:57	—	—	5:58	—	—	5:59	—	—	6:00	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Light rain (total 8mm), mostly falling on Mon night. Freeze-thaw conditions (max 9°C on Mon afternoon, min 0°C on Sat morning). Winds increasing (light winds from the S on Mon morning, near gales from the SSW by Mon night).

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 24mm), heaviest during Tue afternoon. Very mild (max 13°C on Thu night, min 6°C on Tue morning). Winds decreasing (gales from the SW on Tue morning, calm 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	4° C	Clear	Calm (0 kph at 0).	16 km
Santa Rosa 30 km S 40m alt. 22 minutes ago	11° C	Dry	Calm (3 kph at 60).
Cloverdale 34 km W 106m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 250).
Graton 35 km SSW 87m alt. 2 hours ago	4° C	Dry	Calm (0 kph at 32).
Alten wx 36 km S 69m alt. 1 hour ago	9° C	Dry	Calm (0 kph at 90).
Sebastopol 36 km SSW 129m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 323).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	8° C	Dry	Light winds from the SE (6 kph at 135).
Camp Meeker wx 37 km SSW 61m alt. 2 hours ago	7° C	Dry	Calm (3 kph at 331).
Knowles Corner wx 37 km S 88m alt. 32 minutes ago	6° C	Dry	Calm (0 kph at —).
Camp Meeker wx 39 km SSW 61m alt. 50 minutes ago	6° C	Dry	Calm (0 kph at 334).

* 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.