– Lat/Long: 34.29° N 117.65° W

Mount San Antonio
Weather Forecast, United States
Issued: 9 pm Tue 30 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Tue 30 Dec Local Time

Updates in:

hr min s

Update imminent

4 Mount San Antonio Elevations: 4 Forecast Elevations:

	Days 1–4 Weather Summary A heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 4°C on Tue night, min -2°C on Thu afternoon). Winds increasing (moderate winds from the S on Tue night, gales from the SSW by Thu morning).										Days 5–7 Weather Summary A heavy fall of snow, heaviest during Sun night. Freeze-thaw conditions (max 4°C on Fri night, min -4°C on Sun night). Winds increasing (fresh winds from the SW on Sat afternoon, severe gales from the SSW by Sun morning).
		Wednesday 31			Thursday 1			Friday 2			Saturday 3			Sunday 4			Monday 5
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	mod. snow	mod. snow	mod. snow	mod. snow	snow shwrs	clear	clear	some clouds	cloudy	cloudy	some clouds	some clouds	cloudy	mod. snow	heavy snow	snow shwrs	snow shwrs	snow shwrs
km/h	SSE	S	SSE	SSW	SSW	SSW	WSW	WSW	SW	SSW	SSW	SW	SW	SSW	SSW	SSW	SSW	SSW	SSW
See all weather maps
cm	—	8	6	8	6	2	—	—	—	—	—	—	—	—	7	17	3	1	1
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	4	2	1	1	-1	0	3	3	4	4	1	0	-1	-1	-1	-2	-3	-2	-2
min °C	2	1	1	-1	-1	-2	1	3	4	2	0	-1	-2	-1	-3	-4	-4	-3	-3
chill °C	-3	-6	-6	-10	-11	-11	-7	-2	-2	-5	-7	-8	-10	-11	-14	-15	-15	-12	-12

Freezing level m	3500	3450	3200	3250	2950	2800	3450	3600	3600	3500	3200	3100	2800	2850	2850	2700	2500	2650	2650
Cloud base (m)	3100	1750	850	850	900	850	900	9300		900	900	1750	950	900	850	850	900	900	950

	—	6:56	—	—	6:56	—	—	6:56	—	—	6:56	—	—	6:56	—	—	6:56	—	—
	—	—	4:51	—	—	4:51	—	—	4:52	—	—	4:52	—	—	4:53	—	—	4:54	—

Mount San Antonio Weather (Days 0-3):

The weather forecast for Mount San Antonio is: A heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 4°C on Tue night, min -2°C on Thu afternoon). Winds increasing (moderate winds from the S on Tue night, gales from the SSW by Thu morning).

Mount San Antonio Weather (Days 3-6):

A heavy fall of snow, heaviest during Sun night. Freeze-thaw conditions (max 4°C on Fri night, min -4°C on Sun night). Winds increasing (fresh winds from the SW on Sat afternoon, severe gales from the SSW by Sun morning).

This table gives the weather forecast for Mount San Antonio at the specific elevation of 3068 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	16° C	Dry and cloudy.	Wind obs. (7 kph from 1 degs) was rejected.	16 km Low: overcast
Ontario Airport 27 km SSE 715m alt. 3 hours ago	16° C	Dry and cloudy.	Light winds from the N (11 kph at 0).	16 km Low: overcast
Crestline - CSS 31 km E 1615m alt. 1 hour ago	12° C	-	Calm (0 kph at 0).
AJX - CSS 32 km ESE 519m alt. 1 hour ago		-	Light winds from the NNE (7 kph at 12).
Marshall Peak - CSS 33 km ESE 1211m alt. 1 hour ago	16° C	-	Wind obs. (15 kph from 172 degs) was rejected.
Mount Wilson Airport 40 km SW 1311m alt. 2 hours ago		-	Wind obs. (19 kph from 220 degs) was rejected.	0.0 km
Lake Arrowhead 41 km E 1619m alt. 1 hour ago		-	Calm (0 kph at 1).
Victorville Airport 41 km NE 880m alt. 2 hours ago	7° C	Dry and cloudy.	Light winds from the SE (11 kph at 140).	16 km Low: overcast
Riverside Airport 42 km SSE 661m alt. 3 hours ago	19° C	Dry and partly cloudy.	Light winds from the ENE (11 kph at 70).	16 km Low: scattered
San Bernardino Airport 43 km ESE 407m alt. 2 hours ago	15° C	Dry and cloudy.	Wind obs. (6 kph from 100 degs) was rejected.	16 km Low: overcast

* 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.