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Lake Hopatcong, New Jersey Weather

Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →

Lake Hopatcong weather forecast — hour by hour, 7-day outlook, NOAA radar

Lake Hopatcong, NJ
Sunday, July 5 at 5:16 AM
69
°
Overcast
Feels like
73°
Humidity
93%
Wind
7 mph
Sunrise
1:32 AM
Sunset
4:33 PM
Lake Hopatcong, NJ
Hour by hour · 24h
24-Hour ForecastLake Hopatcong, NJ: 24-hour forecast. Temperatures range from 69 to 83 degrees Fahrenheit with a 70% chance of precipitation at 1 AM.
L 69°H 83°
Lake Hopatcong, NJ
7-day forecast
  1. Today
    Jul 5
    Heavy Rain
    64%
    0.48″
    83°68°
  2. Monday
    Jul 6
    Rain
    91%
    0.45″
    72°66°-11°
  3. Tuesday
    Jul 7
    Drizzle
    81%
    0.04″
    66°60°-6°
  4. Wednesday
    Jul 8
    Overcast
    21%
    77°59°+11°
  5. Thursday
    Jul 9
    Light Drizzle
    22%
    78°59°+1°
  6. Friday
    Jul 10
    Light Drizzle
    42%
    80°61°+2°
  7. Saturday
    Jul 11
    Overcast
    19%
    81°55°+1°
Lake Hopatcong, NJ
Anemometer · 24h winds · from true
NESW
From · True
NW
310° · steady
Direction
NW
310°
Sustained
7
mph
Gust
15
mph
Peak 24h
23
avg 7
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 7 · pk 23 @ 11:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2110SUSTGUST
−24h−18h−12h−6hnow
Light breeze holding from the nw.
Lake Hopatcong, NJ
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
977.6
-1.3 mb in 3h · falling · 28.87 inHg
Now
977.6
mb
3h
-1.3
mb
12h
+0.1
mb
24h
-0.7
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 977981
970975980985-21h-18h-15h-12h-9h-6h-3h-24hNOW980.5976.7977.5
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Lake Hopatcong, NJ
Air quality
32
AQI
Good
-21 in 6hPeak ~40 @ 3 PM

AQI 32 (Good), driven by Ozone. AQI down 21 over the last 6 hours — air quality is improving sharply. Ozone at AQI 36. Overcast through the UV peak window (cloud cover ~77%) — afternoon ozone should stay flat.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 3 PM.

PM 2.5Good
3.5μg/m³
PM 10Good
4μg/m³
NO₂Good
5μg/m³
OzoneDRIVERModerate
76μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 36. Overcast through the UV peak window (cloud cover ~77%) — afternoon ozone should stay flat.

Present
AQI 36
UV peak
3.3 at 1 PM
Sky at peak
overcast
Projected peak
AQI 8
Lake Hopatcong, NJ
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
26.3mi
UNLIMITED
69 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
09:16 UTC · Lake Hopatcong, NJ · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
09:16 UTC · Lake Hopatcong, NJ · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Lake Hopatcong, NJ
Satellite · infrared · animated
Lake Hopatcong, NJ
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Lake Hopatcong, NJ
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:00 AM
Sunrise
1:32 AM
Daylight
15h 01m
Sunset
4:33 PM
Civil dusk
9:08 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Lake Hopatcong, NJ
The moon
Waning Gibbous
74% illuminated
Moonrise
11:16 PM
Moonset
11:07 AM
In sign
♓︎ Pisces
Lake Hopatcong, NJ
Microseason
Jul 1–5

Cicadas claim the afternoon

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Lake Hopatcong at a glance

  • Today vs. normal: 69°F — typical for the season
  • Last frost: April 22 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 07849

15-Day Forecast — Lake Hopatcong

  1. Sun83°68°64%
  2. Mon72°66°91%
  3. Tue66°60°81%
  4. Wed77°59°21%
  5. Thu78°59°22%
  6. Fri80°61°42%
  7. Sat81°55°19%
  8. Sun78°58°26%
  9. Mon71°57°20%
  10. Tue82°57°14%
  11. Wed82°59°16%
  12. Thu86°61°39%
  13. Fri74°64°26%
  14. Sat78°62°42%
  15. Sun87°64°37%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Lake Hopatcong

SPC has placed Lake Hopatcong in the Marginal Risk category for severe thunderstorms today.

  • TODAYMRGLMarginal Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3NONENo severe risk

Isolated severe storms possible. Limited threat for hail or damaging wind.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

ZIP codes in Lake Hopatcong

  • 07849
  • 07885

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.