Local weather forecast

Weather in Mountainside, NJ

Updated 2026-08-11 11:15 local time · ZIP codes 07092

Now87°F

Sunny

High / Low91° / 69°

Rain chance73%

Wind5 mph

Weather alerts

Active alerts

Coastal Flood Statement issued August 11 at 2:34AM EDT until August 11 at 9:00PM EDT by NWS Upton NY

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Queens and Southern Nassau Counties. * WHEN...This evening. * IMPACTS...Brief minor flooding of the most vulnerable locations near the waterfront and shoreline. * ADDITIONAL DETAILS...Additional rounds of localized minor flooding are likely with the Wednesday Night and Thursday Night high tides. Minor coastal flooding could be a bit more widespread with the Wednesday night high tide.

Safety instructions

Do not drive through flooded roadways.

Hourly

Next hours

Now

87°7% rain

12 PM

89°4% rain

1 PM

90°3% rain

2 PM

90°4% rain

3 PM

90°4% rain

4 PM

86°17% rain

5 PM

91°12% rain

6 PM

89°3% rain

7 PM

76°83% rain

8 PM

74°80% rain

9 PM

74°73% rain

10 PM

75°16% rain

Forecast

3-day weather forecast

Today2026-08-11

91° 69°Sunny

Rain 73%Gust 8 mph

Tomorrow2026-08-12

87° 69°Sunny

Rain 67%Gust 8 mph

Thursday2026-08-13

89° 69°Sunny

Rain 57%Gust 9 mph

Conditions

Weather details

Feels like98°F

Humidity72%

Pressure29.89 inHg

Visibility6 mi

Wind5 mph NW

Wind gusts6 mph

Precipitation0.00 in

UV index4

Daylight

Sunrise, sunset and moon

Sunrise06:04 AM

Sunset08:01 PM

Moonrise04:01 AM

Moon phaseNew Moon

Practical guide

Weather insights for today

Take an umbrella

Rain chance reaches about 83% over the next 12 hours.

Choose light, breathable clothing

It feels like 98°F with winds near 5 mph.

Best window: 11 AM

87°F, 7% rain chance and 5 mph wind.

Use extra caution while driving

Visibility is around 6 mi; gusts may reach 10 mph.

Running conditions are less comfortable

Current temperature is 87°F, wind 5 mph, rain chance up to 83%.

Moderate UV protection recommended

UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.

Mountainside weather today

Sunny and 87°F in Mountainside, NJ. Today's high is 91°F with a 73% rain chance. Winds are around 5 mph with gusts near 6 mph. Relative humidity is 72%, pressure is 29.89 inHg, and visibility is about 6 miles.

Tonight and tomorrow in Mountainside

Sunrise is at 06:04 AM and sunset is at 08:01 PM. Tomorrow's forecast calls for Sunny with a high near 87°F and a low near 69°F. The maximum rain chance is 67%.

Nearby

Weather near Mountainside

Westfield, NJ~2 mi away Springfield, NJ~2 mi away Summit, NJ~2 mi away New Providence, NJ~3 mi away Garwood, NJ~3 mi away Fanwood, NJ~3 mi away Scotch Plains, NJ~3 mi away Cranford, NJ~3 mi away

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