See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
18°
Clear
Feels Like: 18°
Min: 15°
Max: 24°
The next few hours will be clear, with tomorrow reaching 22°C and dropping to 14°C. The coming days will be cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:43
Sunrise
19:01
Sunset
Moon
Waxing Crescent
10:26
Moonrise
20:05
Moonset
Daily Forecast
Today
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Iselin.
Resources
UV Index
Humidity
Weather in Iselin tomorrow, September 15, 2026
Iselin is set for a fine, sunny day on September 15, 2026, with only limited interruptions to the clear sky. The early hours look particularly favourable for being outside. The morning sky stays heavily clouded, with cover near 100% around 11:00. Grey conditions set the early tone before any later change.
The day peaks near 22°C and cools toward 12°C. Moisture in the air spans 57%-89%, with the highest values around 07:00. A lighter breeze peaks around 04:00 near 3.0 km/h.
Through the afternoon skies look more workable, with cloud near 24% around 12:00. Later outdoor plans have a clearer window than the morning may have suggested. Views remain open at about 16.1 km. The sun rises at 06:44 and sets at 18:59, for a total of 12 hours 15 minutes of sunlight today.
The practical takeaway for Iselin is a bright September 15, 2026, ideal for outdoor errands before temperatures ease from about 22°C.
Frequently asked questions about weather in Iselin
How warm does it get in Iselin?
The warmest month in Iselin is July, with average high temperatures of 30°C. The average temperature during this period is around 26°C.
How cold does it get in Iselin?
The coldest month in Iselin is January, with average low temperatures of -1°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Iselin?
The wettest month in Iselin is July, with an average of 131mm of precipitation.
What is the driest time of year in Iselin?
The driest month in Iselin is November, with an average of 75mm of precipitation.
Explore more weather forecasts
- Colonia, New Jersey
- New York City, New York
- Avenel, New Jersey
- Los Angeles, California
- Woodbridge, New Jersey
- Brooklyn, New York
- Metuchen, New Jersey
- Chicago, Illinois
- Fords, New Jersey
- Houston, Texas
- Rahway, New Jersey
- Queens, New York
- Clark, New Jersey
- Phoenix, Arizona
- South Plainfield, New Jersey
- Philadelphia, Pennsylvania
