Mountainside, NJ Weather Forecast & Current Conditions

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Mountainside, NJ Weather Maps

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Mountainside Weather Map
UTC Time: 9/23/2026, 09:30
Your Time:

Mountainside, NJ

Today
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Thursday
Sunny
68°/ 52° 20°/ 11°
0%
Friday
Rain Showers
68°/ 55° 20°/ 13°
30%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Sunny
70°/ 55° 21°/ 13°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Partly cloudy in the evening, then becoming mostly clear. Lows around 50. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Morristown, NJ

Today
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Sunny
65°/ 48° 18°/
0%
Friday
Rain Showers
68°/ 52° 20°/ 11°
30%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
50%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
50%
Monday
Sunny
68°/ 52° 20°/ 11°
0%
Tuesday
Sunny
72°22°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the mid 60s. Northeast winds around 15 mph with gusts up to 30 mph.

Night: Mostly clear. Lows in the upper 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Western Essex, NJ

Today
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Thursday
Sunny
68°/ 52° 20°/ 11°
0%
Friday
Rain Showers
68°/ 55° 20°/ 13°
40%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
50%
Monday
Sunny
70°/ 55° 21°/ 13°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly clear. Lows around 50. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Somerville, NJ

Today
Mostly Cloudy
68°/ 48° 20°/
0%
Thursday
Sunny
68°/ 50° 20°/ 10°
0%
Friday
Rain Showers
68°/ 52° 20°/ 11°
30%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
50%
Sunday
Rain Showers
68°/ 52° 20°/ 11°
50%
Monday
Sunny
72°/ 52° 22°/ 11°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Night: Partly cloudy in the evening, then clearing. Lows in the upper 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Eastern Union, NJ

Today
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Sunny
68°/ 55° 20°/ 13°
0%
Friday
Rain Showers
68°/ 58° 20°/ 14°
40%
Saturday
Rain Showers
68°/ 58° 20°/ 14°
50%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
50%
Monday
Sunny
72°/ 58° 22°/ 14°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Night: Partly cloudy in the evening, then clearing. Lows in the lower 50s. Northeast winds 15 to 20 mph.

New Brunswick, NJ

Today
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Sunny
68°/ 52° 20°/ 11°
0%
Friday
Rain Showers
68°/ 55° 20°/ 13°
40%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Night: Partly cloudy. Lows in the lower 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Eastern Essex, NJ

Today
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Sunny
68°/ 55° 20°/ 13°
0%
Friday
Rain Showers
68°/ 58° 20°/ 14°
40%
Saturday
Rain Showers
68°/ 58° 20°/ 14°
50%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
50%
Monday
Sunny
70°/ 58° 21°/ 14°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Hudson County, NJ

Today
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Sunny
68°/ 55° 20°/ 13°
0%
Friday
Rain Showers
68°/ 58° 20°/ 14°
40%
Saturday
Rain Showers
65°/ 58° 18°/ 14°
50%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
50%
Monday
Partly Cloudy
70°/ 58° 21°/ 14°
0%
Tuesday
Sunny
72°22°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s. Northeast winds 15 to 20 mph.

Staten Island, NY

Today
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Thursday
Sunny
68°/ 55° 20°/ 13°
0%
Friday
Rain Showers
68°/ 58° 20°/ 14°
40%
Saturday
Rain Showers
65°/ 58° 18°/ 14°
50%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
50%
Monday
Partly Cloudy
70°/ 58° 21°/ 14°
0%
Tuesday
Sunny
72°22°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Breezy with highs in the upper 60s. Northeast winds 15 to 25 mph.

Night: Partly cloudy. Lows in the mid 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Eastern Bergen, NJ

Today
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Sunny
68°/ 52° 20°/ 11°
0%
Friday
Rain Showers
68°/ 55° 20°/ 13°
40%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
50%
Monday
Sunny
70°/ 55° 21°/ 13°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly clear. Lows in the lower 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Eastern Passaic, NJ

Today
Mostly Cloudy
68°/ 48° 20°/
0%
Thursday
Sunny
68°/ 52° 20°/ 11°
0%
Friday
Rain Showers
68°/ 55° 20°/ 13°
40%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
50%
Monday
Sunny
70°/ 55° 21°/ 13°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly clear. Lows in the upper 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Brooklyn, NY

Today
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Thursday
Sunny
68°/ 55° 20°/ 13°
0%
Friday
Rain Showers
68°/ 58° 20°/ 14°
40%
Saturday
Rain Showers
65°/ 58° 18°/ 14°
60%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
50%
Monday
Sunny
68°/ 60° 20°/ 16°
0%
Tuesday
Sunny
72°22°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Breezy with highs in the upper 60s. Northeast winds 15 to 25 mph.

Night: Partly cloudy. Lows in the mid 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Freehold, NJ

Today
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Rain Showers
68°/ 55° 20°/ 13°
50%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
60%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Partly Cloudy
70°/ 55° 21°/ 13°
0%
Tuesday
Sunny
72°22°
0%

Day: Mostly cloudy and breezy. Highs in the upper 60s. Northeast winds 15 to 25 mph with gusts up to 40 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Breezy with lows in the lower 50s. Northeast winds 15 to 25 mph with gusts up to 35 mph.

Manhattan, NY

Today
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Thursday
Sunny
68°/ 55° 20°/ 13°
0%
Friday
Rain Showers
68°/ 58° 20°/ 14°
40%
Saturday
Rain Showers
65°/ 58° 18°/ 14°
60%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
50%
Monday
Partly Cloudy
70°/ 58° 21°/ 14°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. Northeast winds 15 to 20 mph.

Western Bergen, NJ

Today
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Sunny
68°/ 50° 20°/ 10°
0%
Friday
Rain Showers
68°/ 52° 20°/ 11°
40%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
50%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
50%
Monday
Sunny
68°/ 52° 20°/ 11°
0%
Tuesday
Sunny
72°22°
0%

Day: Partly sunny. Highs in the mid 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly clear. Lows in the upper 40s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Flemington, NJ

Today
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Sunny
65°/ 48° 18°/
0%
Friday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
50%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
50%
Monday
Sunny
70°/ 52° 21°/ 11°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the mid 60s. Northeast winds around 15 mph with gusts up to 30 mph.

Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Western Passaic, NJ

Today
Partly Cloudy
65°/ 45° 18°/
0%
Thursday
Sunny
65°/ 48° 18°/
0%
Friday
Rain Showers
65°/ 52° 18°/ 11°
30%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
50%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
50%
Monday
Sunny
68°/ 52° 20°/ 11°
0%
Tuesday
Sunny
72°22°
0%

Day: Partly sunny. Highs in the mid 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly clear. Lows in the mid 40s. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the evening.

Northern Queens, NY

Today
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Thursday
Sunny
68°/ 55° 20°/ 13°
0%
Friday
Rain Showers
68°/ 58° 20°/ 14°
40%
Saturday
Rain Showers
65°/ 58° 18°/ 14°
60%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
50%
Monday
Sunny
70°/ 58° 21°/ 14°
0%
Tuesday
Sunny
72°22°
0%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Night: Partly cloudy. Lows in the mid 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

Newton, NJ

Today
Partly Cloudy
65°/ 45° 18°/
0%
Thursday
Sunny
65°/ 48° 18°/
0%
Friday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Saturday
Rain Showers
65°/ 50° 18°/ 10°
50%
Sunday
Rain Showers
65°/ 50° 18°/ 10°
50%
Monday
Sunny
68°/ 50° 20°/ 10°
0%
Tuesday
Sunny
72°22°
0%

Day: Partly sunny. Highs in the mid 60s. Northeast winds 10 to 15 mph with gusts up to 30 mph.

Night: Mostly clear. Lows in the mid 40s. Northeast winds around 10 mph with gusts up to 20 mph.

Sandy Hook, NJ

Today
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Thursday
Partly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Rain Showers
68°/ 58° 20°/ 14°
50%
Saturday
Rain Showers
68°/ 58° 20°/ 14°
60%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
50%
Monday
Partly Cloudy
68°/ 58° 20°/ 14°
0%
Tuesday
Sunny
70°21°
0%

Day: Mostly cloudy and windy. Highs in the upper 60s. Northeast winds 25 to 30 mph with gusts up to 40 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Windy with lows in the mid 50s. Northeast winds 20 to 30 mph with gusts up to 40 mph.

Names listed above may include county names.

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