– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 9 pm Mon 09 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Mon 09 Feb 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 27mm), heaviest during Tue night. Very mild (max 12°C on Mon night, min 7°C on Tue night). Wind will be generally light.										Days 5–7 Weather Summary Moderate rain (total 10mm), heaviest on Sun morning. Very mild (max 14°C on Fri afternoon, min 5°C on Sun afternoon). Winds increasing (calm on Fri morning, fresh winds from the SSE by Sun morning).
		Tuesday 10			Wednesday 11			Thursday 12			Friday 13			Saturday 14			Sunday 15
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	cloudy	light rain	heavy rain	mod. rain	light rain	rain shwrs	some clouds	some clouds	clear	clear	clear	some clouds	cloudy	cloudy	light rain	mod. rain	rain shwrs	clear
km/h	NE	ESE	SE	ESE	SE	E	ENE	NE	NW	N	SW	WSW	SW	SW	SSW	S	SSE	SW	W
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	3	15	6	2	1.1	—	—	—	—	—	—	—	—	1.3	7	1.4	—
max °C	12	12	9	8	9	8	8	12	12	9	13	14	9	10	9	7	7	6	4
min °C	8	11	9	7	8	8	7	9	9	8	12	10	7	8	7	6	6	5	1
chill °C	6	10	8	4	6	6	5	8	8	6	12	10	6	6	4	3	3	2	-2

Freezing level m	2700	2350	1900	1850	1650	1750	1750	2000	2250	2500	3000	2850	2750	2250	1750	1650	1500	1350	1050
Cloud base (m)	5200		1400	350	400	400	400	500	1600			8100	6750	6600	700	500	450	350	550

	—	7:07	—	—	7:05	—	—	7:03	—	—	7:03	—	—	7:01	—	—	7:01	—	—
	—	—	5:42	—	—	5:44	—	—	5:45	—	—	5:45	—	—	5:46	—	—	5:47	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Heavy rain (total 27mm), heaviest during Tue night. Very mild (max 12°C on Mon night, min 7°C on Tue night). Wind will be generally light.

Mount Saint Helena Weather (Days 3-6):

Moderate rain (total 10mm), heaviest on Sun morning. Very mild (max 14°C on Fri afternoon, min 5°C on Sun afternoon). Winds increasing (calm on Fri morning, fresh winds from the SSE by Sun morning).

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	8° C	Clear	Calm (0 kph at 0).	16 km
Petaluma Municipal Airport (California) 47 km S 28m alt. 2 hours ago	8° C	Clear	Light winds from the SE (6 kph at 140).	16 km
BUOY-BDXC1 54 km SSW 3m alt. 1 hour ago
Marin County Airport (California) 58 km S 1m alt. 2 hours ago	9° C	Clear	Wind obs. (17 kph from 190 degs) was rejected.	16 km
Napa Airport 60 km SSE 202m alt. 2 hours ago	9° C	Clear	Light winds from the E (6 kph at 80).	16 km
Vacaville Airport 67 km ESE 217m alt. 3 hours ago	8° C	Clear	Light winds from the NE (6 kph at 40).	16 km
Yolo County Davis Woodland Winters Airport (California) 68 km E 30m alt. 2 hours ago	11° C	Clear	Light winds from the NNE (7 kph at 20).	16 km
Ukiah Airport 70 km WNW 218m alt. 2 hours ago	7° C	Clear	Calm (0 kph at 0).	16 km
BUOY-SFXC1 74 km SE 3m alt. 2 hours ago	7° C		Light winds from the NE (13 kph at 40).
BUOY-DPXC1 75 km SSE 3m alt. 1 hour ago	14° C		Light winds from the ESE (17 kph at 110).

* 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.