Frost Advisory
Ends in 46 min
When
Until 9 AM EDT this morning.
Where
Portions of central, northern, and southern New Jersey and southeast Pennsylvania.
Issued for this forecast zone · National Weather Service Mount Holly NJ
What, impacts and precautionsHide details
What
Temperatures as low as 32 will result in frost formation.
Impacts
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Precautionary actions
Take steps now to protect tender plants from the cold.
Areas: Middlesex; Western Monmouth; Mercer; Salem; Gloucester; Camden; Northwestern Burlington; Ocean; Cumberland; Atlantic; Southeastern Burlington; Delaware; Philadelphia; Eastern Chester; Eastern Montgomery; Lower Bucks
See it on weather.gov (opens in a new tab)

Observed 7:50 AM EDT at KBLM

Keyport, NJ weather

Sunny and 37°3°.

Mostly agree

Now 37°3°

Sunny · Feels like 33°0°

Wind: 6 mph9 km/h; From the west-northwest. Up to 6 mph9 km/h through 8 PM
Dew point: 37°3°; Comfortable
Humidity: 85%; Air 37°3°, dew point 37°3° · fog or dew likely
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 4Good; Ozone · tomorrow moderate
Pressure: 30.54 inHg1034 hPa; Rising slowly · +0.03 inHg+1.0 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 4 PM
Below 50°10° tonight after 9 PM
Low 40°4° tomorrow at 6 AM

This morningUp to 53°12° by 11 AM · Partly cloudy
This afternoonUp to 61°16° by 4 PM · Clear
TonightDown to 42°6° by 3 AM · Clear
Tomorrow morningUp to 57°14° by 11 AM · Clear
Tomorrow afternoonUp to 65°18° by 4 PM · Clear
Tomorrow nightDown to 43°6° by 5 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
Sat 8a	Sunny	41°5° (likely 40°4° to 44°7°)	39°4°	0%	5 mph8 km/h from N, gusts 5 mph9 km/h	85%	40%	0
Sat 9a	Sunny	45°7° (likely 45°7° to 47°8°)	44°7°	0%	5 mph8 km/h from N, gusts 6 mph9 km/h	76%	33%	1
Sat 10a	Sunny	50°10° (likely 50°10° to 52°11°)	50°10°	0%	0 mph0 km/h, gusts 7 mph11 km/h	66%	33%	2
Sat 11a	Sunny	53°12° (likely 53°12° to 56°13°)	53°12°	0%	0 mph0 km/h, gusts 6 mph10 km/h	57%	38%	3
Sat 12p	Partly sunny	56°13° (likely 55°13° to 59°15°)	56°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	49%	35%	4
Sat 1p	Partly sunny	58°14° (likely 57°14° to 61°16°)	58°14°	0%	0 mph0 km/h, gusts 4 mph7 km/h	42%	35%	4
Sat 2p	Sunny	60°16° (likely 58°14° to 62°17°)	60°16°	0%	0 mph0 km/h, gusts 4 mph6 km/h	37%	25%	4
Sat 3p	Mostly sunny	60°16° (likely 60°16° to 62°17°)	60°16°	0%	0 mph0 km/h, gusts 4 mph6 km/h	37%	24%	3
Sat 4p	Mostly sunny	61°16° (likely 60°16° to 62°17°)	61°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	36%	11%	2
Sat 5p	Sunny	60°16° (likely 59°15° to 61°16°)	60°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	36%	5%	1
Sat 6p	Clear	58°14° (likely 55°13° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	44%	15%	0
Sat 7p	Clear	55°13° (likely 49°9° to 55°13°)	55°13°	0%	0 mph0 km/h, gusts 4 mph7 km/h	49%	12%	0
Sat 8p	Clear	51°11° (likely 46°8° to 53°12°)	51°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	59%	0%	0
Sat 9p	Clear	49°9° (likely 45°7° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	61%	0%	0
Sat 10p	Clear	47°8° (likely 44°7° to 48°9°)	47°8°	0%	0 mph0 km/h, gusts 5 mph8 km/h	65%	1%	0
Sat 11p	Clear	46°8° (likely 43°6° to 47°8°)	46°8°	0%	0 mph0 km/h, gusts 5 mph9 km/h	68%	2%	0
Sun 12a	Clear	45°7° (likely 42°6° to 46°8°)	45°7°	0%	0 mph0 km/h, gusts 6 mph9 km/h	70%	2%	0
Sun 1a	Clear	44°7° (likely 41°5° to 45°7°)	44°7°	0%	0 mph0 km/h, gusts 8 mph12 km/h	73%	0%	0
Sun 2a	Clear	44°7° (likely 39°4° to 44°7°)	44°7°	0%	0 mph0 km/h, gusts 7 mph11 km/h	73%	0%	0
Sun 3a	Clear	42°6° (likely 38°3° to 43°6°)	42°6°	0%	0 mph0 km/h, gusts 6 mph10 km/h	79%	0%	0
Sun 4a	Clear	42°6° (likely 38°3° to 42°6°)	42°6°	0%	0 mph0 km/h, gusts 5 mph9 km/h	79%	0%	0
Sun 5a	Clear	42°6° (likely 38°3° to 42°6°)	42°6°	0%	0 mph0 km/h, gusts 5 mph8 km/h	76%	1%	0
Sun 6a	Clear	40°4° (likely 39°4° to 41°5°)	40°4°	0%	0 mph0 km/h, gusts 5 mph8 km/h	82%	0%	0
Sun 7a	Sunny	41°5° (likely 39°4° to 41°5°)	41°5°	0%	0 mph0 km/h, gusts 5 mph8 km/h	79%	0%	0
Sun 8a	Sunny	42°6° (likely 39°4° to 42°6°)	42°6°	0%	0 mph0 km/h, gusts 5 mph8 km/h	79%	0%	0
Sun 9a	Sunny	46°8° (likely 43°6° to 46°8°)	46°8°	0%	0 mph0 km/h, gusts 5 mph8 km/h	71%	0%	1
Sun 10a	Sunny	52°11° (likely 50°10° to 53°12°)	52°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	61%	0%	2
Sun 11a	Sunny	57°14° (likely 54°12° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	51%	0%	3
Sun 12p	Sunny	59°15° (likely 58°14° to 62°17°)	59°15°	0%	0 mph0 km/h, gusts 6 mph10 km/h	44%	0%	4
Sun 1p	Sunny	63°17° (likely 61°16° to 65°18°)	63°17°	0%	0 mph0 km/h, gusts 6 mph9 km/h	36%	0%	4
Sun 2p	Sunny	64°18° (likely 63°17° to 66°19°)	64°18°	0%	0 mph0 km/h, gusts 5 mph7 km/h	34%	0%	4
Sun 3p	Sunny	64°18° (likely 64°18° to 67°19°)	64°18°	0%	0 mph0 km/h, gusts 5 mph8 km/h	34%	0%	3
Sun 4p	Sunny	65°18° (likely 64°18° to 66°19°)	65°18°	0%	0 mph0 km/h, gusts 5 mph8 km/h	33%	0%	2
Sun 5p	Sunny	64°18° (likely 62°17° to 65°18°)	64°18°	0%	0 mph0 km/h, gusts 5 mph8 km/h	37%	0%	1
Sun 6p	Clear	61°16° (likely 56°13° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	42%	0%	0
Sun 7p	Clear	57°14° (likely 52°11° to 57°14°)	57°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	51%	0%	0
Sun 8p	Clear	53°12° (likely 50°10° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 7 mph12 km/h	59%	0%	0
Sun 9p	Clear	51°11° (likely 48°9° to 51°11°)	51°11°	0%	0 mph0 km/h, gusts 7 mph12 km/h	61%	0%	0
Sun 10p	Clear	49°9° (likely 46°8° to 49°9°)	49°9°	0%	0 mph0 km/h, gusts 7 mph11 km/h	66%	0%	0
Sun 11p	Clear	47°8° (likely 44°7° to 48°9°)	47°8°	0%	0 mph0 km/h, gusts 7 mph12 km/h	71%	0%	0
Mon 12a	Clear	46°8° (likely 42°6° to 47°8°)	46°8°	0%	0 mph0 km/h, gusts 8 mph13 km/h	73%	0%	0
Mon 1a	Clear	46°8° (likely 41°5° to 47°8°)	45°7°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	73%	0%	0
Mon 2a	Clear	45°7° (likely 39°4° to 47°8°)	44°7°	0%	5 mph8 km/h from W, gusts 8 mph14 km/h	76%	0%	0
Mon 3a	Clear	44°7° (likely 36°2° to 48°9°)	42°6°	0%	5 mph8 km/h from W, gusts 8 mph14 km/h	79%	0%	0
Mon 4a	Clear	44°7° (likely 36°2° to 47°8°)	41°5°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	79%	0%	0
Mon 5a	Clear	43°6° (likely 36°2° to 47°8°)	40°4°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	82%	1%	0
Mon 6a	Clear	42°6° (likely 36°2° to 46°8°)	39°4°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	86%	0%	0
Mon 7a	Sunny	42°6° (likely 36°2° to 46°8°)	39°4°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	86%	1%	0

Days ahead

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

Today, Oct 24. Partly sunny. High 62°17°, low 39°4°. Typical 63°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 62. North wind 0 to 5 mph.
Tonight: Patchy frost after 10pm. Mostly clear, with a low around 39. Southwest wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–62°17°
Low, likely
39°4°–43°6°
Typical high / low
63°17° / 41°5°
Wind
8 mph13 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 66°19°, low 41°5°. Typical 63°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 42°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 43°6°
  Dry
Official NWS forecast
Day: Patchy frost before 9am. Sunny, with a high near 66. West wind around 0 mph.
Night: Clear, with a low around 41. West wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–67°19°
Low, likely
38°3°–41°5°
Typical high / low
63°17° / 41°5°
Wind
7 mph10 km/h
UV peak
4
Monday, Oct 26. Sunny. High 69°21°, low 50°10°. Typical 63°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 42°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  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 69. West wind around 5 mph.
Night: Clear, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–69°21°
Low, likely
37°3°–50°10°
Typical high / low
63°17° / 40°4°
Wind
9 mph15 km/h, gusts 18 mph29 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 60°16°, low 44°7°. Typical 62°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 51°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°15°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 60.
Night: Mostly clear, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
57°14°–62°17°
Low, likely
43°6°–51°11°
Typical high / low
62°17° / 40°4°
Wind
12 mph19 km/h, gusts 24 mph39 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 59°15°, low 47°8°. Typical 62°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 58°15°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 59.
Night: Partly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–61°16°
Low, likely
40°4°–47°8°
Typical high / low
62°17° / 40°4°
Wind
9 mph14 km/h, gusts 16 mph26 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 67°19°, low 51°11°. Typical 62°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Mostly clear, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–68°20°
Low, likely
43°6°–51°11°
Typical high / low
62°17° / 40°4°
Wind
8 mph13 km/h, gusts 33 mph53 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 70°21°, low 50°10°. Typical 61°16° / 39°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  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 50.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
70°21°–73°23°
Low, likely
47°8°–51°11°
Typical high / low
61°16° / 39°4°
Wind
11 mph18 km/h, gusts 23 mph36 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 66°19°, low 49°9°. Typical 61°16° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 51°10°
  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
58°14°–72°22°
Low, likely
44°7°–55°13°
Typical high / low
61°16° / 39°4°
Wind
15 mph23 km/h, gusts 24 mph39 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 65°18°, low 50°10°. Typical 61°16° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 56°13°
  20% chance
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
54°12°–70°21°
Low, likely
46°8°–54°12°
Typical high / low
61°16° / 39°4°
Wind
13 mph20 km/h, gusts 22 mph36 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 66°19°, low 56°13°. Typical 60°16° / 38°3°. Rain 0.04 in1 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 58°14°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  30% chance
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
54°12°–72°22°
Low, likely
51°11°–59°15°
Typical high / low
60°16° / 38°3°
Wind
13 mph20 km/h, gusts 18 mph29 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 62°, low 39°.
Tomorrow
Dry, high 66°, low 41°, warming up.
Monday
Dry, high 69°, low 50°, warming up.
Rest of week
Mostly dry, highs 59–70°.

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

Rivers

NOAA river gauges within 25 mi

Arthur Kill at Perth Amboy (IN MLLW)

5.9 mi

Below flood stage

Level: 6.7 ft

Forecast peak 6.5 ft Sat 8 AM

Reading from Sat 6 AM · NWS gauge page

New Jersey Atlantic Coast at Sandy Hook (IN MLLW)

10 mi

Below flood stage

Level: 6.5 ft

Forecast peak 6.4 ft Sat 8 AM

Reading from Sat 6:36 AM · NWS gauge page

Deep Run at Old Bridge

2.8 mi

Below flood stage

Level: 6.8 ft
Flow: 6 cfs

Reading from Sat 6:15 AM · NWS gauge page

Raritan Bay at Keansburg (IN MLLW)

3.0 mi

Below flood stage

Level: 6.7 ft

Reading from Sat 6:24 AM · NWS gauge page

For your home

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

Heating this week

About 72% less heating than a typical week.

This week 28Typical 97

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 22
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 3 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 38°F).

Open the windows?

Today, 2:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

New Brunswick 3 SE · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

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

−10°−6°SunOct 18
−5°−3°MonOct 19
+2°+1°TueOct 20
+5°+3°WedOct 21
±0°ThuOct 22
+4°+2°FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 46 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 29 min less
Golden hour: 5:25–6:20 PM; Morning 7:00–7:55 AM
Blue hour: 6:20–6:31 PM; Morning 6:49–7:00 AM; first light 6:49 AM

Stars tonight? Fair

Clear 6:31 PM–6:50 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:28 AM · rises 5:00 PM
Full moon: Oct 26
New moon: Nov 9

Looking northeast from Keyport. The highest point on the skyline is about 2,100 ft, 34 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Frost Advisory

Keyport, NJ weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Arthur Kill at Perth Amboy (IN MLLW)

New Jersey Atlantic Coast at Sandy Hook (IN MLLW)

Deep Run at Old Bridge

Raritan Bay at Keansburg (IN MLLW)

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon