Freeze Warning
Ends in 4 h 32 min
When
From midnight tonight to 9 AM EDT Saturday.
Where
In New Jersey, Morris, Somerset, and Hunterdon Counties. In Pennsylvania, Berks, Lehigh, Upper Bucks, Western Chester, and Western Montgomery Counties.
Issued for this forecast zone · National Weather Service Mount Holly NJ
What, impacts and precautionsHide details
What
Sub-freezing temperatures as low as 30 degrees expected.
Impacts
Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Precautionary actions
Take steps now to protect tender plants from the cold.
Areas: Morris; Hunterdon; Somerset; Berks; Lehigh; Western Chester; Western Montgomery; Upper Bucks
See it on weather.gov (opens in a new tab)

Observed 3:10 AM EDT at KCDW

Pine Brook, NJ weather

Freeze Warning. 36°2° and clear now.

Forecasts agree

Now 36°2°

Clear

Wind: Calm; Light through 4 PM
Dew point: 34°1°; Dry, static shocks likely
Humidity: 93%; Air 36°2°, dew point 34°1° · frost likely
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 57Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.5 inHg1033 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 34°1° today at 6 AM
Above 50°10° today by 11 AM
High 63°17° today at 3 PM
Below 50°10° tonight after 9 PM

TonightNear 36°2° · Clear
This morningUp to 53°12° by 11 AM · Mostly cloudy
This afternoonUp to 63°17° by 3 PM · Partly cloudy
TonightDown to 38°3° by 3 AM · Clear
Tomorrow morningUp to 58°14° by 11 AM · Clear
Tomorrow afternoonUp to 66°19° by 4 PM · Clear
Tomorrow nightDown to 41°5° by 3 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 4a	Clear	36°2° (likely 35°2° to 40°4°)	36°2°	0%	1 mph2 km/h from N, gusts 8 mph12 km/h	89%	15%	0
Sat 5a	Clear	35°2° (likely 35°2° to 40°4°)	35°2°	0%	1 mph2 km/h from N, gusts 8 mph13 km/h	92%	25%	0
Sat 6a	Mostly cloudy	34°1° (likely 34°1° to 39°4°)	34°1°	0%	1 mph2 km/h from N, gusts 7 mph12 km/h	92%	49%	0
Sat 7a	Cloudy	34°1° (likely 34°1° to 39°4°)	34°1°	0%	1 mph2 km/h from N, gusts 7 mph10 km/h	92%	73%	0
Sat 8a	Cloudy	35°2° (likely 35°2° to 40°4°)	35°2°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	92%	80%	0
Sat 9a	Cloudy	41°5° (likely 41°5° to 44°7°)	41°5°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	79%	80%	1
Sat 10a	Cloudy	48°9° (likely 48°9° to 51°11°)	48°9°	0%	0 mph0 km/h, gusts 5 mph7 km/h	60%	79%	2
Sat 11a	Cloudy	53°12° (likely 52°11° to 56°13°)	53°12°	0%	0 mph0 km/h, gusts 2 mph4 km/h	50%	77%	3
Sat 12p	Cloudy	57°14° (likely 55°13° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	42%	72%	3
Sat 1p	Partly sunny	60°16° (likely 57°14° to 62°17°)	60°16°	0%	0 mph0 km/h, gusts 4 mph6 km/h	37%	54%	4
Sat 2p	Cloudy	62°17° (likely 59°15° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 4 mph6 km/h	33%	62%	4
Sat 3p	Partly sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	0 mph0 km/h, gusts 4 mph7 km/h	32%	40%	3
Sat 4p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	0 mph0 km/h, gusts 5 mph7 km/h	32%	15%	2
Sat 5p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 5 mph8 km/h	35%	4%	1
Sat 6p	Clear	59°15° (likely 55°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 4 mph7 km/h	40%	1%	0
Sat 7p	Clear	54°12° (likely 51°11° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 5 mph9 km/h	50%	0%	0
Sat 8p	Clear	50°10° (likely 47°8° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 5 mph9 km/h	58%	0%	0
Sat 9p	Clear	48°9° (likely 44°7° to 49°9°)	48°9°	0%	0 mph0 km/h, gusts 4 mph7 km/h	60%	0%	0
Sat 10p	Clear	46°8° (likely 42°6° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	63%	0%	0
Sat 11p	Clear	44°7° (likely 40°4° to 47°8°)	44°7°	0%	0 mph0 km/h, gusts 5 mph8 km/h	65%	4%	0
Sun 12a	Clear	42°6° (likely 39°4° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 5 mph7 km/h	70%	9%	0
Sun 1a	Clear	40°4° (likely 38°3° to 44°7°)	40°4°	0%	0 mph0 km/h, gusts 4 mph7 km/h	76%	11%	0
Sun 2a	Clear	39°4° (likely 36°2° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 5 mph8 km/h	79%	12%	0
Sun 3a	Clear	38°3° (likely 35°2° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 6 mph9 km/h	82%	12%	0
Sun 4a	Clear	38°3° (likely 34°1° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 5 mph8 km/h	82%	11%	0
Sun 5a	Clear	38°3° (likely 34°1° to 41°5°)	38°3°	0%	0 mph0 km/h, gusts 5 mph8 km/h	82%	11%	0
Sun 6a	Clear	36°2° (likely 34°1° to 41°5°)	36°2°	0%	0 mph0 km/h, gusts 5 mph8 km/h	89%	10%	0
Sun 7a	Sunny	37°3° (likely 33°1° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 5 mph7 km/h	82%	10%	0
Sun 8a	Sunny	38°3° (likely 33°1° to 41°5°)	38°3°	0%	0 mph0 km/h, gusts 4 mph7 km/h	82%	10%	0
Sun 9a	Sunny	43°6° (likely 41°5° to 46°8°)	43°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	76%	0%	1
Sun 10a	Sunny	53°12° (likely 50°10° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 5 mph9 km/h	54%	0%	2
Sun 11a	Sunny	58°14° (likely 56°13° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 6 mph9 km/h	45%	0%	3
Sun 12p	Sunny	61°16° (likely 61°16° to 64°18°)	61°16°	0%	0 mph0 km/h, gusts 5 mph9 km/h	39%	0%	4
Sun 1p	Sunny	64°18° (likely 63°17° to 66°19°)	64°18°	0%	1 mph2 km/h from W, gusts 6 mph9 km/h	34%	0%	4
Sun 2p	Sunny	65°18° (likely 64°18° to 67°19°)	65°18°	0%	1 mph2 km/h from W, gusts 6 mph10 km/h	31%	0%	4
Sun 3p	Sunny	65°18° (likely 64°18° to 67°19°)	65°18°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	31%	0%	3
Sun 4p	Sunny	66°19° (likely 64°18° to 66°19°)	66°19°	0%	2 mph3 km/h from W, gusts 7 mph12 km/h	30%	0%	2
Sun 5p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	2 mph3 km/h from SW, gusts 9 mph14 km/h	33%	0%	1
Sun 6p	Clear	61°16° (likely 56°13° to 61°16°)	61°16°	0%	2 mph3 km/h from SW, gusts 7 mph11 km/h	39%	0%	0
Sun 7p	Clear	57°14° (likely 52°11° to 57°14°)	57°14°	0%	1 mph2 km/h from SW, gusts 6 mph10 km/h	47%	0%	0
Sun 8p	Clear	51°11° (likely 47°8° to 51°11°)	51°11°	0%	1 mph2 km/h from W, gusts 6 mph9 km/h	61%	0%	0
Sun 9p	Clear	49°9° (likely 43°6° to 49°9°)	49°9°	0%	0 mph0 km/h, gusts 5 mph7 km/h	66%	0%	0
Sun 10p	Clear	47°8° (likely 40°4° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	68%	0%	0
Sun 11p	Clear	46°8° (likely 39°4° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 5 mph8 km/h	71%	0%	0
Mon 12a	Clear	44°7° (likely 38°3° to 47°8°)	44°7°	0%	0 mph0 km/h, gusts 5 mph8 km/h	76%	0%	0
Mon 1a	Clear	43°6° (likely 37°3° to 47°8°)	43°6°	0%	0 mph0 km/h, gusts 5 mph7 km/h	79%	0%	0
Mon 2a	Clear	42°6° (likely 37°3° to 46°8°)	42°6°	0%	0 mph0 km/h, gusts 5 mph8 km/h	82%	0%	0
Mon 3a	Clear	41°5° (likely 37°3° to 46°8°)	41°5°	0%	0 mph0 km/h, gusts 5 mph8 km/h	85%	0%	0

Days ahead

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

Today, Oct 24. Cloudy. High 64°18°, low 33°1°. Typical 64°18° / 45°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Today: Areas of frost before 10am. Partly sunny. High near 64, with temperatures falling to around 62 in the afternoon. North wind around 1 mph.
Tonight: Areas of frost. Partly cloudy. Low around 33, with temperatures rising to around 35 overnight. North wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–64°18°
Low, likely
33°1°–39°4°
Typical high / low
64°18° / 45°7°
Wind
6 mph9 km/h, gusts 11 mph17 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 67°19°, low 39°4°. Typical 63°17° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Official NWS forecast
Day: Patchy frost before 9am. Sunny. High near 67, with temperatures falling to around 65 in the afternoon. West wind around 2 mph.
Night: Clear. Low around 39, with temperatures rising to around 41 overnight. West wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–67°19°
Low, likely
32°0°–40°4°
Typical high / low
63°17° / 44°7°
Wind
6 mph10 km/h
UV peak
4
Monday, Oct 26. Sunny. High 70°21°, low 44°7°. Typical 63°17° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  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 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–70°21°
Low, likely
37°3°–44°7°
Typical high / low
63°17° / 44°7°
Wind
9 mph15 km/h, gusts 28 mph45 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 60°16°, low 36°2°. Typical 62°17° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  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 36.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–60°16°
Low, likely
36°2°–43°6°
Typical high / low
62°17° / 44°7°
Wind
9 mph15 km/h, gusts 28 mph44 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 60°16°, low 42°6°. Typical 62°17° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 43°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 60.
Night: Partly cloudy, with a low around 42.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
55°13°–61°16°
Low, likely
35°2°–42°6°
Typical high / low
62°17° / 44°7°
Wind
6 mph10 km/h, gusts 17 mph27 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 67°19°, low 48°9°. Typical 62°17° / 43°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  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 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
62°17°–67°19°
Low, likely
41°5°–48°9°
Typical high / low
62°17° / 43°6°
Wind
9 mph14 km/h, gusts 29 mph46 km/h
UV peak
4
Friday, Oct 30. Sunny. High 70°21°, low 46°8°. Typical 61°16° / 43°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 70.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–73°23°
Low, likely
42°6°–50°10°
Typical high / low
61°16° / 43°6°
Wind
10 mph16 km/h, gusts 24 mph39 km/h
UV peak
4
Saturday, Oct 31. Partly sunny. High 67°19°, low 46°8°. Typical 61°16° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–74°23°
Low, likely
44°7°–48°9°
Typical high / low
61°16° / 42°6°
Wind
9 mph14 km/h, gusts 26 mph42 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 64°18°, low 48°9°. Typical 61°16° / 42°6°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 56°13°
  20% chance
4. Overnight
  midnight–6 AM
  Drizzle, 53°12°
  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
58°14°–71°22°
Low, likely
45°7°–51°11°
Typical high / low
61°16° / 42°6°
Wind
7 mph11 km/h, gusts 17 mph27 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 68°20°, low 54°12°. Typical 60°16° / 42°6°. Rain 0.22 in5.6 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  20% chance · 0.01 in0.4 mm
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  20% chance · 0.11 in2.8 mm
3. Evening
  6 PM–midnight
  Mostly clear, 59°15°
  20% chance · 0.12 in3 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–72°22°
Low, likely
53°12°–56°13°
Typical high / low
60°16° / 42°6°
Wind
15 mph24 km/h, gusts 35 mph56 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 64°, low 33°.
Tomorrow
Dry, high 67°, low 39°, warming up.
Monday
Dry, high 70°, low 44°, warming up.
Rest of week
Mostly dry, highs 60–70°.

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

Rockaway River at Boonton

3.3 mi

Action stage

Level: 305 ft

Reading from Sat 3 AM · NWS gauge page

Passaic River at Pine Brook

1.3 mi

Below flood stage

Level: 13.0 ft
Flow: 338 cfs

Forecast peak 12.9 ft Sat 8 AM

Reading from Sat 2:15 AM · NWS gauge page

Rockaway River at Boonton below reservoir

3.2 mi

Below flood stage

Level: 1.8 ft
Flow: 22 cfs

Forecast peak 1.9 ft Sat 8 AM

Reading from Sat 3 AM · NWS gauge page

Passaic River at Singac

4.4 mi

Below flood stage

Level: 2.9 ft
Flow: 85 cfs

Forecast peak 3.0 ft Sat 8 AM

Reading from Sat 2:45 AM · NWS gauge page

For your home

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

Heating this week

About 63% less heating than a typical week.

This week 31Typical 83

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 23
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 12 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 34°F).

Open the windows?

Today, 1:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

TETERBORO AIRPORT · official normals 1991–2020 · records 1969–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

On average 3°2° colder than normal (daily mean temperature).

−8°−5°SunOct 18
−4°−2°MonOct 19
—TueOct 20
+1°±0°WedOct 21
+1°ThuOct 22
—FriOct 23
—SatOct 24

Pine Brook weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 45 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 31 min less
Golden hour: 5:25–6:20 PM; Morning 7:01–7:56 AM
Blue hour: 6:20–6:31 PM; Morning 6:50–7:01 AM; first light 6:50 AM

Stars tonight? Fair

Mostly clear 4:28–6 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:29 AM · rises 5:00 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Pine Brook. The highest point on the skyline is about 3,900 ft, 39 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

Freeze Warning

Pine Brook, NJ weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Rockaway River at Boonton

Passaic River at Pine Brook

Rockaway River at Boonton below reservoir

Passaic River at Singac

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