Trenton weather live forecast

Today's maximum temperature in Trenton is expected to be 29°C. Select a day from the live weather forecast for Trenton, New Jersey, USA for more weather parameters.

Thursday
17th Sep
29

20

3

5
Friday
18th Sep
27

18

9

7
Saturday
19th Sep
23

17

8

5
Sunday
20th Sep
24

18

0

4
Monday
21st Sep
21

17

0

6

5-day weather forecast updated at 04:00 on Thursday 17th September 2026 GMT

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The 5-day weather forecast for New Jersey (Trenton) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Trenton weather forecast by day

Below are the detailed weather forecasts for Trenton for the next 5 days.

Trenton weather for Thursday 17th September 2026

Expect isolated thunderstorms in Trenton, New Jersey with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a light breeze of 8 kph from the south.

29
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
5
UV index (Moderate)
25
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
8
kph wind from S

Trenton weather for Friday 18th September 2026

Expect isolated thunderstorms in Trenton, New Jersey with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 3% chance of some rain and a light breeze of 9 kph from the north.

27
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
7
UV index (High)
3
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
9
kph wind from N

Trenton weather for Saturday 19th September 2026

Expect broken clouds in Trenton, New Jersey with a maximum temperature of 23°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north-east.

23
°C maximum temperature
17
°C minimum temperature
broken clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
7
kph wind from NE

Trenton weather for Sunday 20th September 2026

Expect isolated thunderstorms in Trenton, New Jersey with a maximum temperature of 24°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 85% chance of some rain and a light breeze of 12 kph from the south.

24
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
4
UV index (Moderate)
85
% chance of some rain
<20
mm of rainfall expected
24
°C wind chill
12
kph wind from S

Trenton weather for Monday 21st September 2026

Expect mostly cloudy with light rain in Trenton, New Jersey with a maximum temperature of 21°C, maximum UV of 6 (High) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 46% chance of some rain and a light breeze of 11 kph from the north-east.