Weather forecast for tomorrow
Princeton, NJ

Weather forecast for tomorrow

Wednesday, Jun 18.

PM Thunderstorms
5:26 am

8:33 pm
EDT
PM Thunderstorms
84°F / 70°F
  • Wind: 6mph SW
  • Humidity: 85%
  • Precip. probability: 63%
  • Precipitation: 0.55"
  • UV index: 7
Tomorrow, on Wednesday, expect stormy weather in the afternoon with lightning and gusts.
With a high probability, moderate precipitation is forecasted. Temperatures will oscillate between a warm 84.2°F at their highest and a pleasant 69.8°F at their lowest.
The maximum heat index, which modifies the air temperature to account for humidity, is assessed at a steamy 96.8°F. Note that heat index values are valued for light wind and location in the shade. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The maximum temperature will be higher and more in tune with July's average of 84.7°F than with June's.
Sunrise will be at 5:26 am and sunset at 8:33 pm; tomorrow's daylight will last for 15h and 7min.

Frequently asked questions

What is the weather forecast for Princeton for tomorrow?
Tomorrow, stormy weather with frequent thunder and rain bursts is expected.
Will it rain tomorrow?
With a probability of 63%, moderate precipitation of 0.55" is predicted.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 84.2°F, while the minimum temperature will be 69.8°F. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is calculated to be 96.8°F.
The highest temperature will be a couple of degrees higher than the average maximum of 78.4°F in June. The lowest temperature will be also relatively higher than the average low of 61°F.
When are sunrise and sunset tomorrow?
On Wednesday, in Princeton, sunrise will be at 5:26 am and sunset at 8:33 pm (EDT).
How many hours of daylight will Princeton have tomorrow?
In Princeton, the length of the day tomorrow will be 15h and 7min.

Hourly weather forecast

12 am
  • 68°F
  • Feels like:
    70°F
Few Showers
Few Showers
  • Wind: 3mph SSE
  • Pressure: 29.97"Hg
  • Humidity: 96%
  • Precip. probability: 32%
  • Precipitation: 0.04"
  • Visibility: 2mi
2 am
  • 66°F
  • Feels like:
    70°F
Few Showers
Few Showers
  • Wind: 3mph SSE
  • Pressure: 29.94"Hg
  • Humidity: 98%
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Visibility: 2mi
4 am
  • 68°F
  • Feels like:
    70°F
Showers
Showers
  • Wind: 2mph SSE
  • Pressure: 29.91"Hg
  • Humidity: 100%
  • Precip. probability: 44%
  • Precipitation: 0.04"
  • Visibility: 2mi
Sunrise: 5:26 am
6 am
  • 66°F
  • Feels like:
    70°F
Showers
Showers
  • Wind: 1mph S
  • Pressure: 29.91"Hg
  • Humidity: 100%
  • Precip. probability: 44%
  • Precipitation: 0.04"
  • Visibility: 2mi
8 am
  • 70°F
  • Feels like:
    72°F
Cloudy
Cloudy
  • Wind: 3mph S
  • Pressure: 29.91"Hg
  • Humidity: 99%
  • Precip. probability: 12%
  • Precipitation: 0"
  • Visibility: 2mi
10 am
  • 73°F
  • Feels like:
    77°F
Cloudy
Cloudy
  • Wind: 4mph SSW
  • Pressure: 29.91"Hg
  • Humidity: 91%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 5mi
12 pm
  • 79°F
  • Feels like:
    84°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph SW
  • Pressure: 29.91"Hg
  • Humidity: 82%
  • Precip. probability: 16%
  • Precipitation: 0"
  • Visibility: 7mi
2 pm
  • 82°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 5mph SW
  • Pressure: 29.88"Hg
  • Humidity: 74%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 82°F
  • Feels like:
    90°F
Thunderstorms
Thunderstorms
  • Wind: 6mph WSW
  • Pressure: 29.85"Hg
  • Humidity: 77%
  • Precip. probability: 63%
  • Precipitation: 0.12"
  • Visibility: 6mi
6 pm
  • 81°F
  • Feels like:
    86°F
Rain
Rain
  • Wind: 4mph WSW
  • Pressure: 29.85"Hg
  • Humidity: 82%
  • Precip. probability: 63%
  • Precipitation: 0.04"
  • Visibility: 5mi
8 pm
  • 77°F
  • Feels like:
    81°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 3mph SSW
  • Pressure: 29.85"Hg
  • Humidity: 87%
  • Precip. probability: 32%
  • Precipitation: 0.2"
  • Visibility: 5mi
Sunset: 8:33 pm
10 pm
  • 73°F
  • Feels like:
    77°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph SW
  • Pressure: 29.85"Hg
  • Humidity: 92%
  • Precip. probability: 19%
  • Precipitation: 0"
  • Visibility: 6mi
Tomorrow, a combination of primarily gloomy and occasionally showery and turbulent weather is predicted.
Rain is predicted at 12 am, 2 am, and from 4 am to 7 am, and from 3 pm to 8 pm. With moderate precipitation of 0.2", most rainfall is expected at 8 pm.
The temperature will be between a minimum of 66.2°F and a maximum of 84.2°F. The feels-like temperature will vary between the lowest temperature of 68°F and the highest temperature of 91.4°F. The hottest part of the day is expected around 3 pm.
The temperature will be more alike with what’s typical for July than the usual maximum in June. The expected low will be also more alike with what’s common in July than the current June average of 61°F.
Updated: Jun 17, 2025 @ 07:31:51 UTC
Published by: Weather U.S. | About Us
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