– Lat/Long: 38.67° N 122.63° W

Mount Saint Helena
Weather Forecast, United States
Issued: 3 pm Thu 25 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Thu 25 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Saint Helena Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary A light covering of new snow mostly falling on Thu afternoon. Becoming milder with light rain (total 4mm) on Fri afternoon. Freeze-thaw conditions (max 9°C on Sun morning, min 0°C on Thu night). Winds decreasing (severe gales from the SSW on Thu afternoon, light winds from the NE by Sat morning).											Days 5–7 Weather Summary Mostly dry. Very mild (max 12°C on Mon morning, min 8°C on Sun afternoon). Winds decreasing (strong winds from the NNE on Sun afternoon, light winds from the NE by Tue morning).
	Thu 25		Friday 26			Saturday 27			Sunday 28			Monday 29			Tuesday 30
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	mod. snow	snow shwrs	light rain	rain shwrs	clear	some clouds	clear	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	some clouds
km/h	S	SW	SSW	W	NNW	NE	NNE	NNE	NNE	NNE	NE	NE	NE	NE	ENE	NE	SE
See all weather maps
cm	7	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	1.8	3	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	2	1	2	3	1	1	2	7	9	9	10	12	12	11	11	12	11
min °C	1	0	1	1	0	0	1	4	8	8	8	11	11	10	11	12	11
chill °C	-9	-10	-8	-6	-6	-4	-4	-1	4	3	4	8	8	9	10	11	10

Freezing level m	1650	1400	1450	1700	1550	1400	1500	2900	2950	3300	3600	3750	3750	3900	3850	3900	3700
Cloud base (m)	550	550	550	350	550	800	850		9050

	—	—	7:26	—	—	7:26	—	—	7:26	—	—	7:26	—	—	7:28	—	—
	4:53	—	—	4:54	—	—	4:55	—	—	4:55	—	—	4:57	—	—	4:58	—

Mount Saint Helena Weather (Days 0-3):

The weather forecast for Mount Saint Helena is: A light covering of new snow mostly falling on Thu afternoon. Becoming milder with light rain (total 4mm) on Fri afternoon. Freeze-thaw conditions (max 9°C on Sun morning, min 0°C on Thu night). Winds decreasing (severe gales from the SSW on Thu afternoon, light winds from the NE by Sat morning).

Mount Saint Helena Weather (Days 3-6):

Mostly dry. Very mild (max 12°C on Mon morning, min 8°C on Sun afternoon). Winds decreasing (strong winds from the NNE on Sun afternoon, light winds from the NE by Tue morning).

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	Cloud Visibility Cloud / Visibility
Santa Rosa Airport 25 km SSW 219m alt. 2 hours ago	10° C	Moderate rain .	Light winds from the S (9 kph at 170).	8 km Mid: few High: broken
Santa Rosa 28 km S 29.6m alt. 54 minutes ago	10° C	Dry	Calm (0 kph at 152).
Cloverdale 34 km W 106m alt. 20 minutes ago	10° C	Dry	Light winds from the ESE (10 kph at 121).
Graton 35 km SSW 87m alt. 25 minutes ago	10° C	Dry	Calm (3 kph at 35).
Alten wx 36 km S 69m alt. 2 hours ago	10° C	Dry	Calm (5 kph at 128).
Sebastopol 36 km SSW 129m alt. 26 minutes ago	11° C	Dry	Calm (2 kph at 133).
Knowles Corner wx 37 km S 88m alt. 58 minutes ago	11° C	Dry	Calm (2 kph at 158).
Cotati 41 km S 94m alt. 46 minutes ago	10° C	Dry	Calm (2 kph at 288).
Occidental 43 km SSW 298m alt. 29 minutes ago	9° C	Dry	Light winds from the SSW (6 kph at 210).
Cazadero 46 km SW 600m alt. 33 minutes ago	9° C	Dry	Calm (0 kph at 246).

* 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.