– Lat/Long: 34.29° N 117.65° W

Mount San Antonio
Weather Forecast, United States
Issued: 3 am Mon 22 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Mon 22 Dec Local Time

Updates in:

hr min s

Update imminent

4 Mount San Antonio Elevations: 4 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 52mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 9°C on Mon morning, min 0°C on Wed night). Winds increasing (moderate winds from the SSW on Mon morning, severe gales from the S by Tue night).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 1°C on Thu afternoon, min -4°C on Fri night). Winds decreasing (gales from the SSW on Thu morning, calm by Sat morning).
	Monday 22			Tuesday 23			Wednesday 24			Thursday 25			Friday 26			Saturday 27
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	some clouds	some clouds	some clouds	rain shwrs	heavy rain	heavy snow	light snow	light snow	snow shwrs	mod. snow	snow shwrs	cloudy	snow shwrs	some clouds	some clouds	some clouds	some clouds
km/h	SSW	SSW	S	S	SSW	S	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	SW	NNE	NE	ENE
See all weather maps
cm	—	—	—	—	—	—	24	5	4	2	7	8	—	3	—	—	—	—
mm	—	—	—	—	0.1	52	—	—	—	—	—	—	—	—	—	—	—	—
max °C	9	8	8	2	2	3	2	2	1	0	1	1	-2	-2	-3	-4	-3	-4
min °C	9	8	3	1	2	2	2	1	0	0	0	-2	-2	-3	-4	-4	-4	-4
chill °C	6	4	-3	-6	-4	-6	-6	-7	-8	-9	-9	-12	-11	-11	-11	-4	-10	-10

Freezing level m	3850	3750	3550	2700	2900	3100	2800	2800	2600	2450	2450	2400	2100	2100	1950	2000	2050	1950
Cloud base (m)	8200	6550	6800	1550	1800	1650	850	850	850	900	900	850	950	850	1800	1600	2150	2000

	6:52	—	—	6:52	—	—	6:54	—	—	6:54	—	—	6:54	—	—	6:54	—	—
	—	4:45	—	—	4:45	—	—	4:45	—	—	4:45	—	—	4:46	—	—	4:47	—

Mount San Antonio Weather (Days 0-3):

The weather forecast for Mount San Antonio is: Heavy rain (total 52mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 9°C on Mon morning, min 0°C on Wed night). Winds increasing (moderate winds from the SSW on Mon morning, severe gales from the S by Tue night).

Mount San Antonio Weather (Days 3-6):

A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 1°C on Thu afternoon, min -4°C on Fri night). Winds decreasing (gales from the SSW on Thu morning, calm by Sat morning).

This table gives the weather forecast for Mount San Antonio at the specific elevation of 2500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount San Antonio. 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
Upland Cable Airport (California) 19 km S 440m alt. 2 hours ago	15° C	Clear	Light winds from the NNE (7 kph at 20).	16 km
Ontario Airport 27 km SSE 715m alt. 2 hours ago	12° C	Dry and partly cloudy.	Wind obs. (6 kph from 360 degs) was rejected.	16 km Low: scattered
Crestline - CSS 31 km E 1615m alt. 1 hour ago	13° C	-	Calm (0 kph at 0).
AJX - CSS 32 km ESE 519m alt. 1 hour ago	14° C	-	Wind obs. (6 kph from 27 degs) was rejected.
Marshall Peak - CSS 33 km ESE 1211m alt. 1 hour ago	17° C	-	Light winds from the SE (11 kph at 133).
Chino Airport 34 km S 218m alt. 2 hours ago	9° C	Mist -.	Calm (0 kph at 0).	2 km
Lake Arrowhead 41 km E 1619m alt. 2 hours ago		-	Calm (0 kph at 287).
Victorville Airport 41 km NE 880m alt. 2 hours ago	7° C	Clear	Light winds from the S (6 kph at 170).	16 km
Riverside Airport 42 km SSE 661m alt. 2 hours ago	10° C	Clear	Calm (0 kph at 0).	13 km
San Bernardino Airport 43 km ESE 407m alt. 2 hours ago	6° C	Clear	Calm (0 kph at 0).	16 km

* 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.