Mountainside, NJ Weather Forecast & Current Conditions

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Mountainside, NJ Weather Maps

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Mountainside Weather Map
UTC Time: 9/21/2026, 15:18
Your Time:

Mountainside, NJ

Today
Partly Cloudy
72°/ 55° 22°/ 13°
50%
Tuesday
Rain
65°/ 52° 18°/ 11°
50%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Rain Showers
65°/ 52° 18°/ 11°
50%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
40%
Sunday
Sunny
68°20°
0%

Day: Partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Chance of rain 50 percent.

Morristown, NJ

Today
Sunny
68°/ 52° 20°/ 11°
50%
Tuesday
Rain Showers
62°/ 48° 17°/
50%
Wednesday
Mostly Cloudy
62°/ 48° 17°/
0%
Thursday
Mostly Cloudy
62°/ 48° 17°/
0%
Friday
Rain Showers
62°/ 50° 17°/ 10°
40%
Saturday
Rain Showers
62°/ 52° 17°/ 11°
40%
Sunday
Sunny
65°18°
0%

Day: Mostly sunny. Highs in the upper 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. A chance of showers after midnight. Lows in the lower 50s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Western Essex, NJ

Today
Partly Cloudy
72°/ 55° 22°/ 13°
50%
Tuesday
Rain
65°/ 52° 18°/ 11°
40%
Wednesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Rain Showers
65°/ 52° 18°/ 11°
50%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
40%
Sunday
Sunny
68°20°
0%

Day: Partly sunny. Highs in the lower 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Chance of rain 50 percent.

Somerville, NJ

Today
Partly Cloudy
70°/ 52° 21°/ 11°
70%
Tuesday
Rain Showers
62°/ 48° 17°/
50%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
65°/ 48° 18°/
0%
Friday
Rain Showers
65°/ 50° 18°/ 10°
40%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
40%
Sunday
Sunny
68°20°
0%

Day: Partly sunny. Highs around 70. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. Showers likely after midnight. Lows in the lower 50s. Northeast winds 5 to 10 mph. Chance of rain 70 percent.

Eastern Union, NJ

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

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the lower 70s. North winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the upper 50s. Northeast winds around 10 mph. Gusts up to 20 mph after midnight. Chance of rain 50 percent.

New Brunswick, NJ

Today
Partly Cloudy
72°/ 55° 22°/ 13°
50%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
50%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Rain Showers
65°/ 52° 18°/ 11°
50%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
40%
Sunday
Partly Cloudy
68°20°
0%

Day: Partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Cloudy. A chance of showers after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Eastern Essex, NJ

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

Day: Partly sunny. Highs in the lower 70s. North winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Chance of rain 40 percent.

Hudson County, NJ

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

Day: Partly sunny. Highs in the lower 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the upper 50s. Northeast winds 10 to 15 mph. Chance of rain 40 percent.

Staten Island, NY

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

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the lower 70s. Northeast winds 15 to 20 mph.

Night: Cloudy. A chance of rain after midnight. Lows in the upper 50s. Northeast winds 10 to 15 mph. Chance of rain 50 percent.

Eastern Bergen, NJ

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

Day: Partly sunny. Highs in the lower 70s. North winds 10 to 15 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Chance of rain 40 percent.

Eastern Passaic, NJ

Today
Partly Cloudy
72°/ 55° 22°/ 13°
40%
Tuesday
Rain
65°/ 50° 18°/ 10°
40%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Friday
Rain Showers
65°/ 52° 18°/ 11°
50%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
40%
Sunday
Sunny
68°20°
0%

Day: Partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph with gusts up to 25 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Chance of rain 40 percent.

Brooklyn, NY

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

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the lower 70s. Northeast winds 15 to 20 mph. Gusts up to 30 mph this morning.

Night: Cloudy. A chance of rain after midnight. Lows around 60. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.

Freehold, NJ

Today
Mostly Cloudy
72°/ 55° 22°/ 13°
50%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
60%
Wednesday
Rain Showers
65°/ 52° 18°/ 11°
30%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Rain Showers
65°/ 52° 18°/ 11°
50%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sunday
Partly Cloudy
68°20°
0%

Day: Partly sunny this morning, then becoming mostly cloudy. Highs in the lower 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.

Manhattan, NY

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

Day: Partly sunny. Highs in the lower 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Chance of rain 40 percent.

Western Bergen, NJ

Today
Partly Cloudy
70°/ 52° 21°/ 11°
30%
Tuesday
Rain
65°/ 48° 18°/
30%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
62°/ 48° 17°/
0%
Friday
Rain Showers
62°/ 50° 17°/ 10°
50%
Saturday
Rain Showers
62°/ 52° 17°/ 11°
40%
Sunday
Sunny
65°18°
0%

Day: Partly sunny. Highs around 70. North winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the lower 50s. Northeast winds 5 to 10 mph. Chance of rain 30 percent.

Flemington, NJ

Today
Partly Cloudy
68°/ 52° 20°/ 11°
70%
Tuesday
Rain Showers
62°/ 48° 17°/
70%
Wednesday
Mostly Cloudy
62°/ 48° 17°/
0%
Thursday
Mostly Cloudy
62°/ 48° 17°/
0%
Friday
Rain Showers
62°/ 50° 17°/ 10°
40%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
40%
Sunday
Sunny
68°20°
0%

Day: Partly sunny. Highs in the upper 60s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. Northeast winds 5 to 10 mph. Chance of rain 70 percent.

Western Passaic, NJ

Today
Partly Cloudy
68°/ 52° 20°/ 11°
40%
Tuesday
Rain
62°/ 48° 17°/
40%
Wednesday
Partly Cloudy
62°/ 45° 17°/
0%
Thursday
Mostly Cloudy
62°/ 48° 17°/
0%
Friday
Rain Showers
62°/ 48° 17°/
40%
Saturday
Rain Showers
62°/ 50° 17°/ 10°
40%
Sunday
Sunny
65°18°
0%

Day: Partly sunny. Highs in the upper 60s. North winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the lower 50s. Northeast winds around 5 mph. Chance of rain 40 percent.

Northern Queens, NY

Today
Partly Cloudy
72°/ 58° 22°/ 14°
30%
Tuesday
Rain
65°/ 55° 18°/ 13°
50%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
68°/ 58° 20°/ 14°
40%
Sunday
Sunny
68°20°
0%

Day: Partly sunny. Highs in the lower 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly cloudy. A chance of rain after midnight. Lows in the upper 50s. Northeast winds 10 to 15 mph. Chance of rain 30 percent.

Newton, NJ

Today
Sunny
68°/ 48° 20°/
50%
Tuesday
Rain Showers
60°/ 45° 16°/
50%
Wednesday
Mostly Cloudy
62°/ 45° 17°/
0%
Thursday
Mostly Cloudy
62°/ 45° 17°/
0%
Friday
Rain Showers
62°/ 48° 17°/
40%
Saturday
Rain Showers
62°/ 48° 17°/
40%
Sunday
Sunny
65°18°
0%

Day: Mostly sunny. Highs in the upper 60s. Northeast winds around 5 mph with gusts up to 20 mph.

Night: Mostly cloudy. A chance of showers after midnight. Lows in the upper 40s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Sandy Hook, NJ

Today
Mostly Cloudy
72°/ 58° 22°/ 14°
40%
Tuesday
Rain Showers
68°/ 58° 20°/ 14°
60%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
30%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
30%
Friday
Rain Showers
68°/ 55° 20°/ 13°
50%
Saturday
Rain Showers
68°/ 58° 20°/ 14°
50%
Sunday
Partly Cloudy
68°20°
0%

Day: Partly sunny this morning, then becoming mostly cloudy. Highs in the lower 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Night: Cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent.

Names listed above may include county names.

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