Mountainside, NJ Current Weather Conditions

Current weather observations and 72-hour history for Mountainside, NJ. • View 5-Day Forecast ›

▼Current Conditions — Mountainside, NJ

CALDWELL (KCDW)

Partly Cloudy

66.2 F

Humidity:	56%
Wind Speed:	mph
Barometer:	30.30 in
Dewpoint:	50.0 F
Visibility:	10.00 mi
Precip:	--
Heat Index:	NA
Wind Chill:	NA

Sep 22 2026, 02:45 PM EDT

Alert Subscriptions

Severe Weather

Tornado, flood & storm warnings

Observations

Station conditions & threshold alerts

Daily Forecast

Morning summary delivered daily

Lightning

Real-time strike alerts

▼State Weather Snapshot — New Jersey

Temperature

Dewpoint

Wind Speed

Full Interactive Observation Map →

▼Radar — New Jersey

Loading radar…

Active Alerts Lightning

Full Interactive Radar Map →

▼Hourly Observation History — Mountainside, NJ

Time	Wind (mph)	Vis (mi)	Weather	Precip (in)	Temperature (F)		Relative Humidity	Wind Chill (F)	Heat Index (F)	Pressure
Time	Wind (mph)	Vis (mi)	Weather	Precip (in)	Air	Dwpt	Relative Humidity	Wind Chill (F)	Heat Index (F)	altimeter (in)	sea level (mb)
02:45 PM EDT		10.00	Partly Cloudy	--	66.2	50.0	56%	NA	NA	30.30	1026.1
02:40 PM EDT	E 11.5 G 19.6	10.00	Mostly Clear	--	66.2	48.2	52%	NA	NA	30.30	1026.1
02:35 PM EDT	E 11.5	10.00	Mostly Clear	--	66.2	48.2	52%	NA	NA	30.30	1026.1
02:30 PM EDT	E 13.8	10.00	Clear	--	66.2	48.2	52%	NA	NA	30.30	1026.1
02:25 PM EDT		10.00	Clear	--	66.2	48.2	52%	NA	NA	30.30	1026.1
02:20 PM EDT	E 12.7 G 18.4	10.00	Clear	--	66.2	48.2	52%	NA	NA	30.30	1026.1
02:05 PM EDT		10.00	Clear	--	66.2	48.2	52%	NA	NA	30.30	1026.1
01:53 PM EDT	15.0 G 26.4	10.00	Mostly Clear	--	66.0	46.9	50%	NA	NA	30.30	1026.1
01:45 PM EDT	E 15.0	10.00	Partly Cloudy	--	66.2	48.2	52%	NA	NA	30.31	1026.4
01:40 PM EDT	E 12.7	10.00	Partly Cloudy	--	66.2	48.2	52%	NA	NA	30.30	1026.1
01:35 PM EDT	E 11.5	10.00	Partly Cloudy	--	66.2	48.2	52%	NA	NA	30.31	1026.4
01:30 PM EDT	E 11.5	10.00	Partly Cloudy	--	66.2	48.2	52%	NA	NA	30.31	1026.4
01:25 PM EDT	13.8	10.00	Partly Cloudy	--	66.2	48.2	52%	NA	NA	30.31	1026.4
01:20 PM EDT	10.4 G 16.1	10.00	Partly Cloudy	--	66.2	48.2	52%	NA	NA	30.31	1026.4
01:05 PM EDT	E 11.5 G 17.3	10.00	Mostly Clear	--	66.2	48.2	52%	NA	NA	30.31	1026.4
01:00 PM EDT	E 10.4	10.00	Mostly Clear	--	66.2	48.2	52%	NA	NA	30.31	1026.4
12:50 PM EDT	E 10.4	10.00	Clear	--	66.2	48.2	52%	NA	NA	30.30	1026.1
12:45 PM EDT	E 12.7	10.00	Mostly Clear	--	66.2	48.2	52%	NA	NA	30.30	1026.1
12:40 PM EDT	E 11.5	10.00	Mostly Clear	--	64.4	48.2	56%	NA	NA	30.31	1026.4
12:35 PM EDT	15.0 G 20.7	10.00	Mostly Clear	--	64.4	48.2	56%	NA	NA	30.30	1026.1
12:30 PM EDT		10.00	Mostly Clear	--	64.4	50.0	60%	NA	NA	30.31	1026.4
12:25 PM EDT	13.8	10.00	Partly Cloudy	--	64.4	50.0	60%	NA	NA	30.30	1026.1
12:10 PM EDT	NE 11.5 G 17.3	10.00	Mostly Clear	--	64.4	50.0	60%	NA	NA	30.31	1026.4
12:00 PM EDT	E 12.7 G 18.4	10.00	Clear	--	62.6	50.0	63%	NA	NA	30.31	1026.4
11:45 AM EDT	11.5	10.00	Partly Cloudy	--	62.6	48.2	59%	NA	NA	30.31	1026.4
11:40 AM EDT	13.8	10.00	Partly Cloudy	--	62.6	50.0	63%	NA	NA	30.31	1026.4
11:35 AM EDT	12.7	10.00	Partly Cloudy	--	62.6	50.0	63%	NA	NA	30.31	1026.4
11:30 AM EDT	E 8.1	10.00	Mostly Cloudy	--	62.6	51.8	68%	NA	NA	30.31	1026.4
11:25 AM EDT	9.2	10.00	Mostly Cloudy	--	62.6	50.0	63%	NA	NA	30.31	1026.4
11:20 AM EDT	8.1	10.00	Partly Cloudy	--	60.8	48.2	63%	NA	NA	30.31	1026.4
11:05 AM EDT	NE 9.2	10.00	Mostly Clear	--	60.8	50.0	68%	NA	NA	30.31	1026.4
10:50 AM EDT	10.4	10.00	Mostly Clear	--	60.8	50.0	68%	NA	NA	30.31	1026.4
10:45 AM EDT	9.2	10.00	Mostly Clear	--	60.8	48.2	63%	NA	NA	30.31	1026.4
10:35 AM EDT	11.5 G 17.3	10.00	Mostly Clear	--	60.8	50.0	68%	NA	NA	30.30	1026.1
10:30 AM EDT	E 12.7	10.00	Mostly Clear	--	60.8	48.2	63%	NA	NA	30.30	1026.1
10:25 AM EDT	10.4 G 16.1	10.00	Partly Cloudy	--	60.8	48.2	63%	NA	NA	30.30	1026.1
10:20 AM EDT	10.4 G 16.1	10.00	Partly Cloudy	--	60.8	50.0	68%	NA	NA	30.30	1026.1
10:10 AM EDT	9.2	10.00	Mostly Cloudy	--	59.0	50.0	72%	NA	NA	30.30	1026.1
10:00 AM EDT	NE 10.4	10.00	Mostly Cloudy	--	59.0	48.2	67%	NA	NA	30.30	1026.1
09:50 AM EDT	9.2	10.00	Mostly Cloudy	--	57.2	50.0	77%	NA	NA	30.30	1026.1
09:40 AM EDT	10.4	10.00	Partly Cloudy	--	57.2	50.0	77%	NA	NA	30.30	1026.1
09:35 AM EDT	NE 6.9	10.00	Mostly Cloudy	--	57.2	50.0	77%	NA	NA	30.30	1026.1
09:25 AM EDT	NE 5.7	10.00	Mostly Cloudy	--	57.2	50.0	77%	NA	NA	30.29	1025.7
09:15 AM EDT	4.6	10.00	Mostly Cloudy	--	57.2	50.0	77%	NA	NA	30.30	1026.1
09:10 AM EDT	NE 5.7	10.00	Cloudy	--	57.2	50.0	77%	NA	NA	30.29	1025.7
09:00 AM EDT	NE 6.9	10.00	Cloudy	--	57.2	50.0	77%	NA	NA	30.29	1025.7
08:50 AM EDT	NE 4.6	10.00	Cloudy	--	57.2	51.8	82%	NA	NA	30.29	1025.7
08:45 AM EDT		10.00	Cloudy	--	57.2	51.8	82%	NA	NA	30.29	1025.7
08:40 AM EDT	NE 4.6	10.00	Cloudy	--	57.2	51.8	82%	NA	NA	30.29	1025.7
08:35 AM EDT	4.6	10.00	Cloudy	--	57.2	50.0	77%	NA	NA	30.29	1025.7
08:25 AM EDT	NE 5.7	10.00	Cloudy	--	57.2	51.8	82%	NA	NA	30.29	1025.7
08:20 AM EDT	NE 6.9	10.00	Cloudy	--	57.2	51.8	82%	NA	NA	30.28	1025.4
08:05 AM EDT	5.7	10.00	Cloudy	--	55.4	51.8	88%	NA	NA	30.28	1025.4
08:00 AM EDT	NE 4.6	10.00	Cloudy	--	55.4	51.8	88%	NA	NA	30.28	1025.4
07:45 AM EDT		10.00	Light Rain	--	55.4	51.8	88%	NA	NA	30.27	1025.1
07:40 AM EDT	3.4	10.00	Light Rain	--	55.4	51.8	88%	NA	NA	30.27	1025.1
07:35 AM EDT	5.7	10.00	Light Rain	--	55.4	51.8	88%	NA	NA	30.27	1025.1
07:30 AM EDT	NE 4.6	10.00	Cloudy	--	55.4	51.8	88%	NA	NA	30.26	1024.7
07:25 AM EDT	NE 4.6	10.00	Cloudy	--	55.4	51.8	88%	NA	NA	30.26	1024.7
07:20 AM EDT	3.4	10.00	Cloudy	--	55.4	51.8	88%	NA	NA	30.26	1024.7
07:10 AM EDT	NE 3.4	10.00	Cloudy	--	55.4	51.8	88%	NA	NA	30.25	1024.4
07:05 AM EDT	3.4	10.00	Mostly Cloudy	--	55.4	51.8	88%	NA	NA	30.25	1024.4
07:00 AM EDT	NE 4.6	10.00	Mostly Cloudy	--	55.4	51.8	88%	NA	NA	30.25	1024.4
06:45 AM EDT	NE 3.4	10.00	Partly Cloudy	--	55.4	51.8	88%	NA	NA	30.24	1024.0
06:40 AM EDT	NE 3.4	10.00	Light Rain	--	55.4	51.8	88%	NA	NA	30.24	1024.0
06:35 AM EDT	3.4	10.00	Light Rain	--	55.4	51.8	88%	NA	NA	30.23	1023.7
06:30 AM EDT	NE 4.6	10.00	Light Rain	--	55.4	51.8	88%	NA	NA	30.23	1023.7
06:25 AM EDT	NE 4.6	10.00	Mostly Cloudy	--	55.4	51.8	88%	NA	NA	30.23	1023.7
06:15 AM EDT	4.6	10.00	Mostly Cloudy	--	55.4	51.8	88%	NA	NA	30.23	1023.7
06:10 AM EDT	NE 3.4	10.00	Mostly Cloudy	--	55.4	51.8	88%	NA	NA	30.22	1023.4
06:00 AM EDT	NE 3.4	10.00	Cloudy	--	55.4	51.8	88%	NA	NA	30.22	1023.4
05:50 AM EDT	NE 5.7	10.00	Cloudy	--	55.4	51.8	88%	NA	NA	30.22	1023.4