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Iselin, NJ

82°F
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Iselin

New Jersey

82°
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Iselin, NJ Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

July

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
28
Mostly cloudy
85°
64°
29
Humid; showers in the morning
88°
68°
30
A t-storm around in the p.m.
88°
67°
1
A little afternoon rain
89°
67°
2
An afternoon shower
87°
68°
3
Cloudy, a shower and t-storm
88°
66°
4
A thunderstorm possible
84°
64°
5
Mostly sunny
83°
63°
6
Cloudy
81°
62°
7
Sunshine
82°
62°
8
Partly sunny
87°
64°
9
A shower and thunderstorm
86°
67°
10
Humid with decreasing clouds
83°
67°
11
Mostly cloudy and humid
84°
65°
12
Humid with decreasing clouds
87°
69°
13
Humid with some sun
90°
69°
14
Sunlit and less humid
89°
68°
15
A shower and thunderstorm
86°
69°
16
A thunderstorm in spots
84°
69°
17
Humid with clouds and sun
86°
67°
18
Clouds and sun
86°
65°
19
Sunshine
84°
66°
20
Mostly sunny and humid
88°
67°
21
Humid; an afternoon t-shower
89°
69°
22
A t-storm around in the p.m.
88°
69°
23
Humid with decreasing clouds
84°
68°
24
Cloudy and humid
86°
69°
25
Mostly sunny and humid
87°
68°
26
Mostly cloudy and humid
89°
69°
27
Humid with sun and clouds
89°
69°
28
A shower and thunderstorm
88°
70°
29
Humid; a p.m. t-storm or two
85°
69°
30
Mostly sunny and humid
84°
69°
31
Turning cloudy and very humid
89°
68°
1
Mostly cloudy and humid
89°
69°

Temperature Graph

°F
90° 84° 78° 72° 66° Jul
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

July Weather in Iselin

Iselin's July 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 62° and 70°. The average high for July is 86° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Iselin. See also: August | September | October.

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Weather Near Iselin:

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  • Newark, NJ
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