– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 10 am Mon 20 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Mon 20 May Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Very mild (max 17°C on Tue afternoon, min 12°C on Mon morning). Mainly strong winds.									Days 4–6 Weather Summary Mostly dry. Very mild (max 14°C on Thu afternoon, min 8°C on Sat morning). Winds increasing (calm on Thu night, fresh winds from the NW by Fri night).									Days 7–9 Weather Summary Mostly dry. Very mild (max 19°C on Tue afternoon, min 9°C on Sun morning). Winds decreasing (fresh winds from the NE on Sun morning, calm by Mon night).									Days 10–12 Weather Summary Mostly dry. Very mild (max 16°C on Wed afternoon, min 10°C on Wed night). Winds decreasing (strong winds from the WNW on Wed night, calm by Fri morning).
	Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29			Thursday 30			Friday 31
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	clear	clear	some clouds	clear	clear	clear	clear	some clouds	some clouds	clear	clear
km/h	NNE	W	NNE	N	W	NW	NNW	NW	NNE	N	W	E	N	W	WNW	WNW	W	N	NE	N	ENE	ENE	NW	SSE	SSE	SW	W	WNW	W	NW	N	WNW	NE	W	WNW	NNW
Wave Height Map See all maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	12	13	13	14	17	16	14	15	16	11	14	13	13	14	14	10	11	13	10	14	14	15	18	17	17	19	18	15	16	14	11	15	15	14	15	16
min°C	12	13	13	14	16	15	13	15	12	11	14	13	13	14	11	8	11	9	9	14	14	14	17	16	16	18	15	15	14	10	10	14	14	13	15	14
chill°C	9	13	12	12	16	14	12	14	11	10	14	13	12	13	8	6	9	7	5	14	13	13	17	16	16	18	14	14	12	7	8	14	13	12	15	13

Freezing level (m)	3250	3100	3150	3350	3450	3650	3800	3950	3700	3500	3250	3100	3100	3450	3500	3550	3600	3700	3650	3850	3850	4000	4150	4300	4300	4300	4250	4050	4050	3950	3950	3950	3750	3700	3900	3800
Cloud base (m)	8500	2800		9500		9350			9600	4950	8850	9200			9700			8500						8900	8350	8600		8400		400

	5:54	—	—	5:52	—	—	5:52	—	—	5:52	—	—	5:50	—	—	5:50	—	—	5:50	—	—	5:48	—	—	5:48	—	—	5:48	—	—	5:48	—	—	5:47	—	—
	—	—	8:20	—	—	8:21	—	—	8:22	—	—	8:22	—	—	8:22	—	—	8:23	—	—	8:24	—	—	8:25	—	—	8:27	—	—	8:27	—	—	8:28	—	—	8:29

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: Mostly dry. Very mild (max 17°C on Tue afternoon, min 12°C on Mon morning). Mainly strong winds.

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 14°C on Thu afternoon, min 8°C on Sat morning). Winds increasing (calm on Thu night, fresh winds from the NW by Fri night).

Mount Saint Helena Weather (Days 6-9):

Mostly dry. Very mild (max 19°C on Tue afternoon, min 9°C on Sun morning). Winds decreasing (fresh winds from the NE on Sun morning, calm by Mon night).

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 5 closest weather stations

Weather Station	Temp.	Weather	Wind
Calistoga 12 km S 366m alt. 1 hour ago		-	Calm (0 kph at 0).
Middletown 12 km ENE 672m alt. 22 minutes ago	26° C	Dry	Calm (2 kph at 85).
Healdsburg 13 km SW 50.6m alt. 59 minutes ago	26° C	Dry	Calm (0 kph at 258).
Calistoga 14 km S 329m alt. 1 hour ago	25° C	Dry	Calm (0 kph at 11).
Angwin 19 km ESE 510m alt. 1 hour ago	21° C	Dry	Calm (0 kph at 200).

* 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.