– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 3 pm Wed 18 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Wed 18 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 6mm) at first, then becoming colder with a dusting of snow on Wed night. Freeze-thaw conditions (max 7°C on Sat morning, min 0°C on Thu night). Winds decreasing (fresh winds from the NW on Thu afternoon, calm by Fri afternoon).											Days 5–7 Weather Summary Heavy rain (total 79mm), heaviest during Mon night. Very mild (max 12°C on Mon morning, min 6°C on Sat afternoon). Wind will be generally light.
	Wed 18		Thursday 19			Friday 20			Saturday 21			Sunday 22			Monday 23
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light snow	rain shwrs	rain shwrs	some clouds	cloudy	some clouds	some clouds	cloudy	rain shwrs	light rain	light rain	light rain	light rain	light rain	mod. rain	heavy rain
km/h	W	SSE	NW	NW	N	ESE	ESE	SE	SE	SSE	SSE	S	S	S	S	SSE	S
See all weather maps
cm	—	4	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1	5	0.5	0.1	—	—	—	—	—	0.1	0.4	0.7	1	0.4	0.7	5	64
max °C	4	3	5	5	1	4	4	1	7	7	6	10	10	10	12	11	11
min °C	2	1	3	2	0	3	2	1	5	6	6	8	10	9	12	10	10
chill °C	-2	-4	-2	-2	-2	2	0	0	2	3	3	5	8	7	11	8	7

Freezing level m	1000	1050	900	1100	700	900	1050	800	1250	1400	1850	2100	2250	2700	2800	2800	3000
Cloud base (m)	400	400	450	500	400	400	550	700	800	800	600	500	450	700	550	400	350

	—	—	6:56	—	—	6:54	—	—	6:52	—	—	6:52	—	—	6:50	—	—
	5:51	—	—	5:52	—	—	5:53	—	—	5:54	—	—	5:55	—	—	5:57	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Light rain (total 6mm) at first, then becoming colder with a dusting of snow on Wed night. Freeze-thaw conditions (max 7°C on Sat morning, min 0°C on Thu night). Winds decreasing (fresh winds from the NW on Thu afternoon, calm by Fri afternoon).

Mount Saint Helena Weather (Days 3-6):

Heavy rain (total 79mm), heaviest during Mon night. Very mild (max 12°C on Mon morning, min 6°C on Sat afternoon). Wind will be generally light.

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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Santa Rosa Airport 25 km SSW 219m alt. 3 hours ago	9° C	Light rain .	Light winds from the ESE (6 kph at 120).	16 km Low: scattered Mid: broken High: overcast
Santa Rosa 30 km S 40m alt. 1 hour ago	8° C	Dry	Calm (0 kph at 163).
Cloverdale 34 km W 106m alt. 1 hour ago	7° C	Dry	Calm (2 kph at 122).
Graton 35 km SSW 87m alt. 2 hours ago	9° C	Dry	Calm (5 kph at 38).
Alten wx 36 km S 69m alt. 1 hour ago	6° C	Dry	Calm (2 kph at 175).
Sebastopol 36 km SSW 129m alt. 2 hours ago	8° C	Dry	Calm (2 kph at 211).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 203).
Camp Meeker wx 37 km SSW 61m alt. 1 hour ago	5° C	Dry	Calm (0 kph at 291).
Knowles Corner wx 37 km S 88m alt. 1 hour ago	8° C	Dry	Calm (0 kph at —).
Monte Rio wx 40 km SSW 76m alt. 43 minutes ago		Dry	Calm (0 kph at 61).

* 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.