– Lat/Long: 34.34° N 117.84° W

Mount Islip Weather Forecast

San Gabriel Mountains · United States

Issued: 10 pm Fri 25 Sep Local Time

Updates in:

hr min s

Update imminent

Issued: 10 pm Fri 25 Sep Local Time

Updates in:

hr min s

Update imminent

3 Mount Islip Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Warm (max 26°C on Sat afternoon, min 17°C on Sun night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm (max 27°C on Thu afternoon, min 18°C on Mon night). Wind will be generally light.
		Saturday 26			Sunday 27			Monday 28			Tuesday 29			Wednesday 30
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	clear	some clouds	clear	clear	clear	clear
Cloud base (m)	9350	9050	9400	6650								2950				9000
km/h	SSW	S	SSW	SSW	S	SSW	S	S	WSW	NNW	N	N	NW	NW	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	25	25	26	23	23	24	20	19	21	18	21	23	22	25	26	24
min °C	23	23	25	20	20	23	17	17	20	18	19	22	22	23	25	23
chill °C	23	23	25	20	20	23	17	17	20	18	19	22	22	23	25	23

Freezing level m	4350	4400	4400	4450	4200	4300	4050	3600	3700	3700	3700	3850	4200	4600	4800	5000

	—	6:41	—	—	6:41	—	—	6:43	—	—	6:43	—	—	6:43	—	—
	—	—	6:42	—	—	6:40	—	—	6:39	—	—	6:37	—	—	6:37	—

Mount Islip Weather (Days 0-3):

The weather forecast for Mount Islip is: Mostly dry. Warm (max 26°C on Sat afternoon, min 17°C on Sun night). Wind will be generally light.

Mount Islip Weather (Days 3-6):

Mostly dry. Warm (max 27°C on Thu afternoon, min 18°C on Mon night). Wind will be generally light.

This table gives the weather forecast for Mount Islip at the specific elevation of 1000 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount Islip. 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Mount Wilson Airport 25 km SSW 1311m alt. 3 hours ago		-	Wind obs. (13 kph from 240 degs) was rejected.	0.0 km
Sierra Madre wx 28 km SSW 417m alt. 4 hours ago	21°C	Dry	Calm (0 kph at 143).
Upland Cable Airport (California) 29 km SSE 440m alt. 3 hours ago	22°C	Clear	Calm (0 kph at 0).	16 km
San Marino 35 km SSW 175m alt. 3 hours ago	18°C	Dry	Calm (2 kph at 172).
Palmdale Airport 39 km WNW 714m alt. 3 hours ago	23°C	Clear	Light winds from the SSW (15 kph at 200).	16 km
Ontario Airport 40 km SE 715m alt. 3 hours ago	24°C	Dry and partly cloudy.	Light winds from the WSW (6 kph at 240).	16 km Low: scattered
Whittier wx 44 km S 125m alt. 2 hours ago	26°C	Dry	Light winds from the S (8 kph at 188).
Chino Airport 45 km SSE 218m alt. 3 hours ago	23°C	Clear	Light winds from the SSW (6 kph at 210).	16 km
Glendale 45 km SW 771m alt. 4 hours ago	21°C	-	Calm (0 kph at 98).
Placentia wx 50 km S 70m alt. 2 hours ago	21°C	Dry	Calm (0 kph at 0).

* 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.