Observed 12:54 PM EDT at K12N

Mount Arlington, NJ weather

Partly cloudy and 56°13°, jacket by 6 PM.

Forecasts agree

Now 56°13°

Partly sunny

Wind: Calm; Light through 2 AM
Dew point: 29°−2°; Dry, static shocks likely
UV index: 3Moderate; Moderate until 3 PM · peak 4
Air quality: 39Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.55 inHg1035 hPa; Falling · −0.05 inHg−1.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (57°14° then, 56°13° now)

Good hours for

Below 50°10° tonight after 8 PM
Low 35°2° tomorrow at 6 AM
Above 50°10° tomorrow by 10 AM

This afternoonNear 59°15° · Partly cloudy
TonightDown to 37°3° by 3 AM · Clear
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 63°17° by 4 PM · Clear
Tomorrow nightDown to 39°4° by 3 AM · Clear
Monday morningUp to 56°13° by 11 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 2p	Partly sunny	58°14° (likely 57°14° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 5 mph7 km/h	36%	52%	3
Sat 3p	Partly sunny	59°15° (likely 57°14° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 4 mph6 km/h	34%	51%	2
Sat 4p	Mostly sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	0 mph0 km/h, gusts 5 mph7 km/h	33%	47%	1
Sat 5p	Mostly sunny	59°15° (likely 56°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 5 mph9 km/h	36%	38%	0
Sat 6p	Clear	55°13° (likely 51°11° to 55°13°)	55°13°	0%	0 mph0 km/h, gusts 5 mph9 km/h	41%	32%	0
Sat 7p	Mostly clear	51°11° (likely 47°8° to 51°11°)	51°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	50%	14%	0
Sat 8p	Clear	46°8° (likely 44°7° to 47°8°)	46°8°	0%	0 mph0 km/h, gusts 5 mph8 km/h	60%	3%	0
Sat 9p	Clear	44°7° (likely 43°6° to 46°8°)	44°7°	0%	0 mph0 km/h, gusts 5 mph9 km/h	65%	3%	0
Sat 10p	Clear	43°6° (likely 42°6° to 45°7°)	43°6°	0%	0 mph0 km/h, gusts 5 mph8 km/h	65%	0%	0
Sat 11p	Clear	42°6° (likely 42°6° to 44°7°)	42°6°	0%	0 mph0 km/h, gusts 5 mph8 km/h	65%	0%	0
Sun 12a	Clear	41°5° (likely 41°5° to 43°6°)	41°5°	0%	0 mph0 km/h, gusts 6 mph9 km/h	65%	0%	0
Sun 1a	Clear	39°4° (likely 39°4° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 6 mph9 km/h	73%	0%	0
Sun 2a	Clear	39°4° (likely 39°4° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 6 mph9 km/h	73%	0%	0
Sun 3a	Clear	37°3° (likely 37°3° to 42°6°)	37°3°	0%	0 mph0 km/h, gusts 6 mph9 km/h	79%	1%	0
Sun 4a	Clear	37°3° (likely 37°3° to 41°5°)	37°3°	0%	0 mph0 km/h, gusts 6 mph9 km/h	79%	1%	0
Sun 5a	Clear	37°3° (likely 36°2° to 41°5°)	37°3°	0%	0 mph0 km/h, gusts 6 mph10 km/h	82%	2%	0
Sun 6a	Clear	35°2° (likely 35°2° to 39°4°)	35°2°	0%	0 mph0 km/h, gusts 6 mph10 km/h	85%	2%	0
Sun 7a	Sunny	36°2° (likely 35°2° to 39°4°)	36°2°	0%	0 mph0 km/h, gusts 7 mph11 km/h	82%	2%	0
Sun 8a	Sunny	36°2° (likely 36°2° to 39°4°)	36°2°	0%	0 mph0 km/h, gusts 7 mph11 km/h	85%	2%	0
Sun 9a	Sunny	42°6° (likely 39°4° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 6 mph10 km/h	76%	2%	1
Sun 10a	Sunny	50°10° (likely 48°9° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 8 mph13 km/h	58%	1%	2
Sun 11a	Sunny	55°13° (likely 53°12° to 56°13°)	55°13°	0%	0 mph0 km/h, gusts 9 mph15 km/h	49%	0%	3
Sun 12p	Sunny	58°14° (likely 56°13° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 9 mph14 km/h	42%	0%	4
Sun 1p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 9 mph14 km/h	36%	0%	4
Sun 2p	Sunny	62°17° (likely 59°15° to 63°17°)	62°17°	0%	0 mph0 km/h, gusts 9 mph15 km/h	33%	0%	4
Sun 3p	Sunny	62°17° (likely 60°16° to 63°17°)	62°17°	0%	0 mph0 km/h, gusts 10 mph16 km/h	32%	0%	3
Sun 4p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	0 mph0 km/h, gusts 9 mph14 km/h	32%	0%	2
Sun 5p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 9 mph14 km/h	38%	0%	1
Sun 6p	Clear	57°14° (likely 53°12° to 57°14°)	57°14°	0%	0 mph0 km/h, gusts 8 mph13 km/h	43%	0%	0
Sun 7p	Clear	53°12° (likely 48°9° to 53°12°)	53°12°	0%	0 mph0 km/h, gusts 8 mph14 km/h	52%	0%	0
Sun 8p	Clear	47°8° (likely 46°8° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 8 mph13 km/h	65%	0%	0
Sun 9p	Clear	46°8° (likely 44°7° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 8 mph13 km/h	68%	0%	0
Sun 10p	Clear	45°7° (likely 43°6° to 47°8°)	45°7°	0%	0 mph0 km/h, gusts 9 mph14 km/h	70%	0%	0
Sun 11p	Clear	43°6° (likely 42°6° to 47°8°)	43°6°	0%	0 mph0 km/h, gusts 9 mph14 km/h	73%	0%	0
Mon 12a	Clear	42°6° (likely 41°5° to 46°8°)	42°6°	0%	0 mph0 km/h, gusts 9 mph14 km/h	76%	0%	0
Mon 1a	Clear	41°5° (likely 40°4° to 46°8°)	41°5°	0%	0 mph0 km/h, gusts 9 mph15 km/h	82%	1%	0
Mon 2a	Clear	40°4° (likely 40°4° to 45°7°)	40°4°	0%	0 mph0 km/h, gusts 9 mph15 km/h	85%	1%	0
Mon 3a	Clear	39°4° (likely 39°4° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 10 mph16 km/h	89%	3%	0
Mon 4a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 11 mph17 km/h	85%	4%	0
Mon 5a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 11 mph18 km/h	85%	13%	0
Mon 6a	Clear	37°3° (likely 37°3° to 44°7°)	37°3°	0%	0 mph0 km/h, gusts 10 mph16 km/h	92%	9%	0
Mon 7a	Sunny	37°3° (likely 37°3° to 43°6°)	37°3°	0%	0 mph0 km/h, gusts 9 mph14 km/h	89%	13%	0
Mon 8a	Sunny	38°3° (likely 38°3° to 44°7°)	38°3°	0%	0 mph0 km/h, gusts 8 mph13 km/h	100%	13%	0
Mon 9a	Sunny	43°6° (likely 43°6° to 47°8°)	43°6°	0%	0 mph0 km/h, gusts 7 mph11 km/h	89%	17%	1
Mon 10a	Sunny	50°10° (likely 49°9° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 10 mph16 km/h	74%	5%	2
Mon 11a	Sunny	56°13° (likely 54°12° to 57°14°)	56°13°	0%	0 mph0 km/h, gusts 12 mph20 km/h	64%	6%	3
Mon 12p	Sunny	60°16° (likely 58°14° to 60°16°)	60°16°	0%	0 mph0 km/h, gusts 12 mph20 km/h	58%	10%	4
Mon 1p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	5 mph8 km/h from NW, gusts 13 mph20 km/h	52%	6%	4

Days ahead

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

Today, Oct 24. Cloudy. High 61°16°, low 35°2°. Typical 61°16° / 40°4°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Mostly sunny, 60°16°
  Dry
2. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 61. Wind around 0 mph.
Tonight: Areas of frost after 10pm. Clear, with a low around 35. North wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
57°14°–61°16°
Low, likely
31°−1°–36°2°
Typical high / low
61°16° / 40°4°
Wind
7 mph11 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 64°18°, low 37°3°. Typical 61°16° / 39°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 39°4°
  Dry
Official NWS forecast
Day: Areas of frost before 9am. Sunny, with a high near 64. West wind around 0 mph.
Night: Clear, with a low around 37. West wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–64°18°
Low, likely
35°2°–39°4°
Typical high / low
61°16° / 39°4°
Wind
7 mph11 km/h
UV peak
4
Monday, Oct 26. Sunny. High 67°19°, low 42°6°. Typical 60°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Official NWS forecast
Day: Sunny, with a high near 67. Northwest wind 0 to 5 mph.
Night: Mostly clear, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–67°19°
Low, likely
38°3°–42°6°
Typical high / low
60°16° / 39°4°
Wind
9 mph15 km/h, gusts 17 mph28 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 58°14°, low 35°2°. Typical 60°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 44°7°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 35°2°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 58.
Night: Mostly clear, with a low around 35.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
55°13°–58°14°
Low, likely
35°2°–43°6°
Typical high / low
60°16° / 39°4°
Wind
9 mph15 km/h, gusts 28 mph45 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 58°14°, low 41°5°. Typical 60°16° / 38°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 35°1°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 43°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 58.
Night: Partly cloudy, with a low around 41.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
54°12°–58°14°
Low, likely
32°0°–41°5°
Typical high / low
60°16° / 38°3°
Wind
7 mph11 km/h, gusts 18 mph28 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 64°18°, low 46°8°. Typical 59°15° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 64.
Night: Mostly clear, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–64°18°
Low, likely
40°4°–46°8°
Typical high / low
59°15° / 38°3°
Wind
11 mph17 km/h, gusts 31 mph50 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 67°19°, low 44°7°. Typical 59°15° / 38°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  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 67.
Night: Mostly clear, with a low around 44.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–70°21°
Low, likely
44°7°–50°10°
Typical high / low
59°15° / 38°3°
Wind
9 mph15 km/h, gusts 27 mph44 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 66°19°, low 46°8°. Typical 59°15° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 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
61°16°–70°21°
Low, likely
42°6°–51°11°
Typical high / low
59°15° / 38°3°
Wind
7 mph11 km/h, gusts 25 mph41 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 64°18°, low 51°11°. Typical 58°14° / 37°3°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 57°14°
  30% chance
4. Overnight
  midnight–6 AM
  Drizzle, 57°14°
  30% chance · 0.12 in2.9 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
59°15°–67°19°
Low, likely
48°9°–53°12°
Typical high / low
58°14° / 37°3°
Wind
10 mph16 km/h, gusts 24 mph39 km/h
UV peak
2
Monday, Nov 2. Drizzle. High 66°19°, low 57°14°. Typical 58°14° / 37°3°. Rain 0.48 in12 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 59°15°
  30% chance · 0.18 in4.6 mm
2. Afternoon
  noon–6 PM
  Showers, 65°18°
  30% chance · 0.14 in3.5 mm
3. Evening
  6 PM–midnight
  Showers, 63°17°
  20% chance · 0.13 in3.4 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
62°17°–71°22°
Low, likely
52°11°–63°17°
Typical high / low
58°14° / 37°3°
Wind
13 mph22 km/h, gusts 36 mph58 km/h

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 35°.
Tomorrow
Dry, high 64°, low 37°, warming up.
Monday
Dry, high 67°, low 42°, warming up.
Rest of week
Mostly dry, highs 58–67°.

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

13 mi

Action stage

Level: 305 ft

Reading from Sat 1 PM · NWS gauge page

Rockaway River at Boonton above reservoir

12 mi

Below flood stage

Level: 1.0 ft
Flow: 80 cfs

Forecast peak 1.0 ft Sat 2 PM

Reading from Sat 12:30 PM · NWS gauge page

Rockaway River at Boonton below reservoir

13 mi

Below flood stage

Level: 1.8 ft
Flow: 19 cfs

Forecast peak 1.8 ft Sat 2 PM

Reading from Sat 1 PM · NWS gauge page

Lake Hopatcong at Landing

1.2 mi

Level: 9.1 ft

Reading from Sat 1 PM · NWS gauge page

For your home

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

Heating this week

About 68% less heating than a typical week.

This week 35Typical 110

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 28
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 29°F).

Open the windows?

Sun, 1:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Boonton 1 SE · official normals 1991–2020 · records 1892–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

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

−11°−6°SunOct 18
−6°−3°MonOct 19
−1°TueOct 20
+7°+4°WedOct 21
+2°+1°ThuOct 22
+3°+2°FriOct 23
−4°−2°SatOct 24

Mount Arlington 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: 5:26–6:22 PM; Morning 7:02–7:58 AM
Blue hour: 6:22–6:32 PM; Morning 6:51–7:02 AM; first light 6:51 AM

Stars tonight? Fair

Clear 7 PM–6:53 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:30 AM · rises 5:01 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Mount Arlington. The highest point on the skyline is about 3,400 ft, 23 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Mount Arlington, 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

Rockaway River at Boonton above reservoir

Rockaway River at Boonton below reservoir

Lake Hopatcong at Landing

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