Observed 6:35 AM EDT at KTTN

Trenton, NJ weather

Clear and 48°9°.

Forecasts agree

Now 48°9°

Clear · Feels like 44°7°

Wind: 10 mph17 km/hgusts 16 mph26 km/h; From the north-northeast. 58–10 mph17 km/h through 7 PM
Dew point: 36°2°; Comfortable
UV index: 0Low; Moderate 12–3 PM · peak 3
Pressure: 30.26 inHg1025 hPa; Rising · +0.07 inHg+2.5 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Above 50°10° today by 10 AM
High 61°16° today at 3 PM
Drops 12°7° tonight 6–9 PM (58°14° → 46°8°)
Below 50°10° tonight after 8 PM

This morningUp to 55°13° by 11 AM · Clear
This afternoonNear 59°15° · Clear
TonightDown to 35°2° by 5 AM · Partly cloudy
Tomorrow morningUp to 55°13° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 62°17° by 3 PM · Partly cloudy
Tomorrow nightDown to 35°2° by 4 AM · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Fri 7a	Sunny	44°7° (likely 44°7° to 48°9°)	39°4°	0%	10 mph16 km/h from N, gusts 14 mph22 km/h	62%	0%	0
Fri 8a	Sunny	43°6° (likely 43°6° to 48°9°)	38°3°	0%	10 mph16 km/h from N, gusts 13 mph22 km/h	67%	0%	0
Fri 9a	Sunny	47°8° (likely 47°8° to 50°10°)	43°6°	0%	10 mph16 km/h from N, gusts 21 mph34 km/h	60%	0%	0
Fri 10a	Sunny	52°11° (likely 52°11° to 53°12°)	52°11°	0%	10 mph16 km/h from NE, gusts 22 mph36 km/h	54%	0%	1
Fri 11a	Sunny	55°13° (likely 55°13° to 56°13°)	55°13°	0%	10 mph16 km/h from NE, gusts 20 mph33 km/h	51%	0%	2
Fri 12p	Sunny	58°14° (likely 57°14° to 58°14°)	58°14°	0%	10 mph16 km/h from NE, gusts 18 mph29 km/h	42%	0%	3
Fri 1p	Sunny	59°15° (likely 58°14° to 60°16°)	59°15°	0%	10 mph16 km/h from NE, gusts 16 mph26 km/h	37%	0%	3
Fri 2p	Sunny	60°16° (likely 59°15° to 60°16°)	60°16°	0%	10 mph16 km/h from NE, gusts 15 mph24 km/h	35%	0%	3
Fri 3p	Sunny	61°16° (likely 60°16° to 61°16°)	61°16°	0%	5 mph8 km/h from NE, gusts 13 mph21 km/h	32%	0%	2
Fri 4p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	5 mph8 km/h from NE, gusts 11 mph18 km/h	31%	0%	1
Fri 5p	Sunny	60°16° (likely 58°14° to 60°16°)	60°16°	0%	5 mph8 km/h from NE, gusts 9 mph15 km/h	32%	0%	0
Fri 6p	Clear	58°14° (likely 54°12° to 58°14°)	58°14°	0%	5 mph8 km/h from NE, gusts 7 mph11 km/h	33%	3%	0
Fri 7p	Mostly clear	51°11° (likely 51°11° to 52°11°)	51°11°	0%	5 mph8 km/h from NE, gusts 6 mph9 km/h	41%	22%	0
Fri 8p	Mostly clear	46°8° (likely 46°8° to 50°10°)	43°6°	0%	5 mph8 km/h from NE, gusts 6 mph10 km/h	49%	45%	0
Fri 9p	Partly cloudy	44°7° (likely 44°7° to 48°9°)	41°5°	0%	5 mph8 km/h from NE, gusts 5 mph8 km/h	51%	53%	0
Fri 10p	Partly cloudy	41°5° (likely 41°5° to 47°8°)	38°3°	0%	5 mph8 km/h from NE, gusts 4 mph6 km/h	55%	48%	0
Fri 11p	Partly cloudy	39°4° (likely 39°4° to 46°8°)	36°2°	0%	5 mph8 km/h from NE, gusts 3 mph5 km/h	59%	65%	0
Sat 12a	Partly cloudy	38°3° (likely 38°3° to 45°7°)	34°1°	0%	5 mph8 km/h from NE, gusts 3 mph5 km/h	62%	51%	0
Sat 1a	Partly cloudy	37°3° (likely 37°3° to 44°7°)	33°1°	0%	5 mph8 km/h from NE, gusts 4 mph6 km/h	67%	42%	0
Sat 2a	Clear	37°3° (likely 37°3° to 43°6°)	33°1°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	67%	12%	0
Sat 3a	Mostly clear	36°2° (likely 36°2° to 42°6°)	32°0°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	69%	26%	0
Sat 4a	Partly cloudy	36°2° (likely 36°2° to 41°5°)	32°0°	0%	5 mph8 km/h from N, gusts 4 mph7 km/h	72%	44%	0
Sat 5a	Partly cloudy	35°2° (likely 35°2° to 40°4°)	31°−1°	0%	5 mph8 km/h from N, gusts 5 mph7 km/h	75%	64%	0
Sat 6a	Cloudy	34°1° (likely 34°1° to 40°4°)	30°−1°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	78%	57%	0
Sat 7a	Cloudy	35°2° (likely 35°2° to 39°4°)	31°−1°	0%	5 mph8 km/h from N, gusts 4 mph7 km/h	78%	62%	0
Sat 8a	Partly sunny	37°3° (likely 36°2° to 41°5°)	32°0°	0%	5 mph8 km/h from N, gusts 4 mph6 km/h	75%	69%	0
Sat 9a	Cloudy	42°6° (likely 41°5° to 45°7°)	38°3°	0%	5 mph8 km/h from N, gusts 5 mph7 km/h	65%	66%	1
Sat 10a	Partly sunny	50°10° (likely 50°10° to 50°10°)	48°9°	0%	5 mph8 km/h from NE, gusts 6 mph9 km/h	52%	67%	2
Sat 11a	Partly sunny	55°13° (likely 54°12° to 55°13°)	55°13°	0%	5 mph8 km/h from NE, gusts 4 mph7 km/h	47%	70%	3
Sat 12p	Partly sunny	58°14° (likely 57°14° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 3 mph5 km/h	40%	66%	4
Sat 1p	Partly sunny	60°16° (likely 58°14° to 61°16°)	60°16°	0%	0 mph0 km/h, gusts 3 mph5 km/h	37%	58%	4
Sat 2p	Partly sunny	61°16° (likely 59°15° to 62°17°)	61°16°	0%	5 mph8 km/h from S, gusts 3 mph5 km/h	35%	48%	4
Sat 3p	Sunny	62°17° (likely 60°16° to 63°17°)	62°17°	0%	5 mph8 km/h from SW, gusts 3 mph5 km/h	32%	41%	3
Sat 4p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	5 mph8 km/h from SW, gusts 3 mph5 km/h	31%	40%	2
Sat 5p	Mostly sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	5 mph8 km/h from W, gusts 3 mph4 km/h	31%	19%	1
Sat 6p	Clear	58°14° (likely 55°13° to 58°14°)	58°14°	0%	5 mph8 km/h from SW, gusts 3 mph4 km/h	36%	41%	0
Sat 7p	Mostly clear	54°12° (likely 52°11° to 54°12°)	54°12°	0%	5 mph8 km/h from SW, gusts 2 mph4 km/h	41%	40%	0
Sat 8p	Mostly clear	49°9° (likely 49°9° to 53°12°)	47°8°	0%	5 mph8 km/h from SW, gusts 1 mph2 km/h	50%	20%	0
Sat 9p	Clear	44°7° (likely 44°7° to 51°11°)	42°6°	0%	5 mph8 km/h from SW, gusts 6 mph10 km/h	60%	2%	0
Sat 10p	Clear	41°5° (likely 41°5° to 48°9°)	39°4°	0%	5 mph8 km/h from SW, gusts 7 mph11 km/h	67%	0%	0
Sat 11p	Clear	40°4° (likely 40°4° to 46°8°)	40°4°	0%	0 mph0 km/h, gusts 6 mph10 km/h	70%	0%	0
Sun 12a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 5 mph9 km/h	79%	0%	0
Sun 1a	Clear	37°3° (likely 37°3° to 45°7°)	34°1°	0%	5 mph8 km/h from W, gusts 4 mph7 km/h	82%	0%	0
Sun 2a	Clear	36°2° (likely 36°2° to 45°7°)	32°0°	0%	5 mph8 km/h from NW, gusts 3 mph5 km/h	89%	0%	0
Sun 3a	Clear	36°2° (likely 31°−1° to 47°8°)	32°0°	0%	5 mph8 km/h from NW, gusts 2 mph3 km/h	92%	0%	0
Sun 4a	Clear	35°2° (likely 30°−1° to 47°8°)	31°−1°	0%	5 mph8 km/h from NW, gusts 2 mph3 km/h	96%	0%	0
Sun 5a	Clear	35°2° (likely 29°−2° to 46°8°)	31°−1°	0%	5 mph8 km/h from NW, gusts 2 mph4 km/h	100%	0%	0
Sun 6a	Clear	34°1° (likely 28°−2° to 45°7°)	29°−2°	0%	5 mph8 km/h from NW, gusts 3 mph4 km/h	100%	0%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 23. Cloudy. High 61°16°, low 34°1°. Typical 63°17° / 43°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 35°2°
  Dry
Official NWS forecast
Today: Sunny, with a high near 61. Northeast wind 5 to 10 mph, with gusts as high as 25 mph.
Tonight: Areas of frost after 11pm. Partly cloudy, with a low around 34. Northeast wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–61°16°
Low, likely
34°1°–45°7°
Typical high / low
63°17° / 43°6°
Wind
12 mph19 km/h, gusts 27 mph43 km/h
UV peak
4
Tomorrow, Oct 24. Partly sunny. High 62°17°, low 34°1°. Typical 62°17° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 35°2°
  Dry
Official NWS forecast
Day: Areas of frost before 9am. Mostly sunny, with a high near 62. North wind 0 to 5 mph.
Night: Areas of frost after 11pm. Mostly clear, with a low around 34. West wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–63°17°
Low, likely
34°1°–39°4°
Typical high / low
62°17° / 43°6°
Wind
5 mph8 km/h, gusts 12 mph19 km/h
UV peak
4
Sunday, Oct 25. Sunny. High 66°19°, low 36°2°. Typical 62°17° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of frost before 9am. Sunny, with a high near 66. West wind around 5 mph.
Night: Mostly clear, with a low around 36.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–66°19°
Low, likely
31°−1°–42°6°
Typical high / low
62°17° / 42°6°
Wind
5 mph8 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 70°21°, low 46°8°. Typical 62°17° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 70.
Night: Mostly clear, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
34°1°–46°8°
Typical high / low
62°17° / 42°6°
Wind
7 mph12 km/h, gusts 17 mph28 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 64°18°, low 40°4°. Typical 61°16° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 64.
Night: Mostly clear, with a low around 40.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–65°18°
Low, likely
40°4°–50°10°
Typical high / low
61°16° / 42°6°
Wind
9 mph14 km/h, gusts 24 mph38 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 61°16°, low 42°6°. Typical 61°16° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 44°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 61.
Night: Mostly cloudy, with a low around 42.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–64°18°
Low, likely
39°4°–47°8°
Typical high / low
61°16° / 41°5°
Wind
8 mph12 km/h, gusts 16 mph25 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 67°19°, low 45°7°. Typical 61°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Partly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–69°21°
Low, likely
40°4°–49°9°
Typical high / low
61°16° / 41°5°
Wind
13 mph20 km/h, gusts 29 mph47 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 69°21°, low 50°10°. Typical 60°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–71°22°
Low, likely
44°7°–52°11°
Typical high / low
60°16° / 41°5°
Wind
9 mph15 km/h, gusts 19 mph30 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 63°17°, low 46°8°. Typical 60°16° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
56°13°–72°22°
Low, likely
39°4°–55°13°
Typical high / low
60°16° / 40°4°
Wind
10 mph16 km/h, gusts 22 mph36 km/h
UV peak
4
Sunday, Nov 1. Showers. High 64°18°, low 51°11°. Typical 60°16° / 40°4°. Rain 0.1 in2.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 60°16°
  20% chance
3. Evening
  6 PM–midnight
  Drizzle, 53°12°
  30% chance · 0.06 in1.6 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–67°19°
Low, likely
38°3°–63°17°
Typical high / low
60°16° / 40°4°
Wind
13 mph21 km/h, gusts 33 mph53 km/h

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 34°.
Tomorrow
Dry, high 62°, low 34°.
Sunday
Dry, high 66°, low 36°, warming up.
Rest of week
Mostly dry, highs 61–70°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (PHI) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 62% less heating than a typical week.

This week 35Typical 92

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 26
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 6 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

Today, 2:00 PM–5:00 PM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

Trenton-Mercer Airport · official normals 1991–2020 · records 1865–2026

Oct 23, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

−4°−2°SatOct 17
−7°−4°SunOct 18
−3°−2°MonOct 19
+2°+1°TueOct 20
+2°+1°WedOct 21
+1°ThuOct 22
—FriOct 23

Trenton weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 49 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 31 min less
Golden hour: 5:30–6:24 PM; Morning 7:01–7:56 AM
Blue hour: 6:24–6:35 PM; Morning 6:50–7:01 AM; first light 6:50 AM

Stars tonight? Fair

Mostly clear 6:35–8 PM, but the moon is 95% lit and up.

Moon

Waxing gibbous

91% lit · growing

Today: sets 4:22 AM · rises 4:38 PM
Full moon: Oct 26
New moon: Nov 9

Looking south from Trenton. The highest point on the skyline is about 2,200 ft, 6 mi away.Skyline from USGS elevation data. Sky, sun and moon as they are now.