– Lat/Long: 34.29° N 117.65° W

Mount San Antonio
Weather Forecast, United States
Issued: 3 am Sat 20 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Sat 20 Dec Local Time

Updates in:

hr min s

Update imminent

4 Mount San Antonio Elevations: 4 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Mild temperatures (max 7°C on Sat afternoon, min 2°C on Mon night). Winds decreasing (near gales from the WSW on Sun morning, moderate winds from the SW by Mon morning).									Days 4–6 Weather Summary A heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 1°C on Tue morning, min -4°C on Wed afternoon). Winds increasing (near gales from the SSW on Tue morning, stormy winds from the SSW by Wed morning).
	Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	some clouds	clear	clear	clear	some clouds	some clouds	some clouds	clear	snow shwrs	heavy snow	snow shwrs	snow shwrs	mod. snow	snow shwrs	some clouds
km/h	W	W	W	WSW	W	W	SW	SSW	SSW	SSW	SSW	S	SSW	SW	SSW	SSW	SSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	18	31	7	8	8	2	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	6	7	7	6	6	5	4	3	4	1	-1	-1	-1	-4	-2	-3	-3	-3
min°C	6	6	6	6	6	4	4	3	2	-1	-1	-2	-3	-4	-4	-3	-4	-4
chill°C	1	1	1	0	0	-2	-1	-3	-5	-10	-10	-12	-14	-16	-15	-14	-15	-15

Freezing level (m)	4050	4050	4050	4000	3950	3800	3700	3600	3600	3250	2900	2800	2850	2450	2550	2600	2500	2450
Cloud base (m)	9050				8000	8900	8750	8800	6350	5450	5250	1600	850	850	2100	850	950	950

	6:52	—	—	6:52	—	—	6:52	—	—	6:52	—	—	6:54	—	—	6:54	—	—
	—	4:44	—	—	4:44	—	—	4:45	—	—	4:45	—	—	4:45	—	—	4:45	—

Mount San Antonio Weather (Days 0-3):

The weather forecast for Mount San Antonio is: Mostly dry. Mild temperatures (max 7°C on Sat afternoon, min 2°C on Mon night). Winds decreasing (near gales from the WSW on Sun morning, moderate winds from the SW by Mon morning).

Mount San Antonio Weather (Days 3-6):

A heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 1°C on Tue morning, min -4°C on Wed afternoon). Winds increasing (near gales from the SSW on Tue morning, stormy winds from the SSW by Wed 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	14° C	Clear	Light winds from the E (6 kph at 90).	16 km
Ontario Airport 27 km SSE 715m alt. 3 hours ago	12° C	Clear	Calm (0 kph at 0).	11 km
Crestline - CSS 31 km E 1615m alt. 2 hours ago	11° C	-	Calm (0 kph at 0).
AJX - CSS 32 km ESE 519m alt. 2 hours ago	14° C	-	Wind obs. (7 kph from 7 degs) was rejected.
Marshall Peak - CSS 33 km ESE 1211m alt. 2 hours ago	13° C	-	Light winds from the S (15 kph at 186).
Chino Airport 34 km S 218m alt. 3 hours ago	8° C	Fog -.	Calm (0 kph at 0).	0 km
Lake Arrowhead 41 km E 1619m alt. 53 minutes ago		-	Calm (0 kph at 117).
Victorville Airport 41 km NE 880m alt. 2 hours ago	12° C	Clear	Calm (0 kph at 0).	16 km
Riverside Airport 42 km SSE 661m alt. 3 hours ago	9° C	Mist -.	Calm (0 kph at 0).	6 km
San Bernardino Airport 43 km ESE 407m alt. 2 hours ago	8° 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.