– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 9 am Wed 18 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Wed 18 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 7mm) at first, then becoming colder with a dusting of snow on Wed night. Freeze-thaw conditions (max 5°C on Thu afternoon, min 0°C on Thu night). Mainly fresh winds.									Days 4–6 Weather Summary Moderate rain (total 18mm), heaviest on Sun afternoon. Very mild (max 11°C on Sun afternoon, min 5°C on Sat morning). Wind will be generally light.
	Wednesday 18			Thursday 19			Friday 20			Saturday 21			Sunday 22			Monday 23
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	light snow	rain shwrs	rain shwrs	some clouds	cloudy	rain shwrs	some clouds	some clouds	cloudy	light rain	light rain	light rain	light rain	light rain	light rain	light rain
km/h	WSW	W	SSE	WNW	NW	N	ESE	ESE	SE	SE	SE	SSE	S	S	S	SSW	SSW	SW
See all weather maps
cm	—	—	4	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.3	1	3	1.6	0.1	—	—	0.1	—	—	—	1.3	0.7	3	5	3	3	2
max °C	4	4	3	4	5	1	5	5	1	7	7	6	9	11	10	11	11	10
min °C	2	2	2	3	2	0	3	3	1	5	5	6	8	10	10	11	11	10
chill °C	-2	-2	-1	-2	-2	0	2	2	-1	2	2	3	5	7	7	8	8	8

Freezing level m	850	1000	1050	850	1050	850	950	1050	750	1250	1350	1650	2100	2250	2350	2350	2400	2400
Cloud base (m)	650	450	450	350	450	400	400	700	650	800	800	550	450	500	450	400	400	400

	6:56	—	—	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 7mm) at first, then becoming colder with a dusting of snow on Wed night. Freeze-thaw conditions (max 5°C on Thu afternoon, min 0°C on Thu night). Mainly fresh winds.

Mount Saint Helena Weather (Days 3-6):

Moderate rain (total 18mm), heaviest on Sun afternoon. Very mild (max 11°C on Sun afternoon, min 5°C on Sat morning). 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. 2 hours ago	3° C	Light rain .	Light winds from the N (9 kph at 0).	11 km Low: scattered Mid: broken High: overcast
Santa Rosa 30 km S 40m alt. 35 minutes ago	8° C	Dry	Calm (0 kph at 32).
Cloverdale 34 km W 106m alt. 2 hours ago	4° C	Dry	Calm (3 kph at 192).
Graton 35 km SSW 87m alt. 1 hour ago	4° C	Dry	Calm (2 kph at 35).
Alten wx 36 km S 69m alt. 2 hours ago	6° C	Dry	Calm (2 kph at 145).
Sebastopol 36 km SSW 129m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 209).
Guerneville wx 36 km SW 18m alt. 3 hours ago		-	Calm (0 kph at 6).
Camp Meeker wx 37 km SSW 61m alt. 32 minutes ago	9° C	Dry	Calm (5 kph at 90).
Camp Meeker wx 37 km SSW 61m alt. 47 minutes ago	7° C	Dry	Calm (2 kph at 167).
Knowles Corner wx 37 km S 88m alt. 46 minutes ago	6° 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.