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Current weather in Hopatcong is overcast clouds.

Where can I find the hourly weather forecast for Hopatcong?

This page shows hourly weather forecast for Hopatcong, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Hopatcong updated regularly?

Weather data for Hopatcong is updated regularly with the latest available observations and forecasts.

Now · 11:39 AM

Hopatcong Weather & Hourly Forecast

United States · New Jersey · 07821

80°F

Overcast

Feels like: 79°F

💧 Humidity 58% 🌡 Pressure 30.15 inHg 💨 Wind 8 mph 👁 Visibility 24.8 mi ☁ Clouds 100% ☀️ UV index 4.4 · Moderate 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Hopatcong

Today

12:00 PM

Overcast

80° 💧 None 💨 8 mph H 58%30.15 inHg

3:00 PM

Overcast

81° 💧 0.000 in 💨 11 mph H 52%30.09 inHg

6:00 PM

Partly cloudy

79° 💧 None 💨 7 mph H 60%30.00 inHg

9:00 PM

Partly cloudy night

75° 💧 None 💨 12 mph H 63%30.00 inHg

Tomorrow

12:00 AM

Mostly cloudy night

73° 💧 None 💨 14 mph H 70%29.97 inHg

3:00 AM

Overcast night

72° 💧 0.072 in 💨 12 mph H 72%29.91 inHg

6:00 AM

Light rain

66° 💧 0.230 in 💨 10 mph H 96%29.91 inHg

9:00 AM

Mostly cloudy

70° 💧 0.003 in 💨 8 mph H 93%29.91 inHg

12:00 PM

Light rain

78° 💧 0.012 in 💨 8 mph H 74%29.88 inHg

3:00 PM

Overcast

80° 💧 0.000 in 💨 7 mph H 67%29.85 inHg

6:00 PM

Overcast

77° 💧 0.001 in 💨 3 mph H 81%29.83 inHg

9:00 PM

Light rain

72° 💧 0.006 in 💨 3 mph H 87%29.85 inHg

Friday

12:00 AM

Mostly cloudy night

68° 💧 None 💨 6 mph H 86%29.88 inHg

3:00 AM

Mostly cloudy night

66° 💧 None 💨 7 mph H 74%29.88 inHg

6:00 AM

Mostly clear night

61° 💧 None 💨 7 mph H 79%29.94 inHg

9:00 AM

Mostly sunny

63° 💧 None 💨 7 mph H 71%30.00 inHg

Today

12:00 PM

Overcast

80° 💧 None 💨 8 mph H 58%30.15 inHg

1:00 PM

Mostly cloudy

79° 💧 None 💨 9 mph H 58%30.15 inHg

2:00 PM

Mostly cloudy

82° 💧 None 💨 11 mph H 50%30.09 inHg

3:00 PM

Overcast

81° 💧 0.000 in 💨 11 mph H 52%30.09 inHg

4:00 PM

Overcast

79° 💧 None 💨 7 mph H 59%30.06 inHg

5:00 PM

Overcast

81° 💧 None 💨 8 mph H 56%30.03 inHg

6:00 PM

Partly cloudy

79° 💧 None 💨 7 mph H 60%30.00 inHg

7:00 PM

Mostly cloudy

78° 💧 None 💨 10 mph H 58%30.00 inHg

8:00 PM

Mostly cloudy night

77° 💧 None 💨 11 mph H 59%30.00 inHg

9:00 PM

Partly cloudy night

75° 💧 None 💨 12 mph H 63%30.00 inHg

10:00 PM

Mostly clear night

74° 💧 None 💨 13 mph H 66%30.00 inHg

11:00 PM

Partly cloudy night

73° 💧 None 💨 13 mph H 70%29.97 inHg

Tomorrow

12:00 AM

Mostly cloudy night

73° 💧 None 💨 14 mph H 70%29.97 inHg

1:00 AM

Overcast night

72° 💧 None 💨 13 mph H 71%29.94 inHg

2:00 AM

Overcast night

72° 💧 None 💨 13 mph H 71%29.94 inHg

3:00 AM

Overcast night

72° 💧 0.000 in 💨 12 mph H 72%29.91 inHg

4:00 AM

Light rain

70° 💧 0.023 in 💨 11 mph H 80%29.91 inHg

5:00 AM

Light rain

67° 💧 0.049 in 💨 12 mph H 92%29.91 inHg

6:00 AM

Light rain

66° 💧 0.050 in 💨 10 mph H 96%29.91 inHg

7:00 AM

Thunderstorms

66° 💧 0.177 in 💨 7 mph H 97%29.91 inHg

8:00 AM

Mostly cloudy

67° 💧 0.003 in 💨 8 mph H 96%29.91 inHg

9:00 AM

Mostly cloudy

70° 💧 None 💨 8 mph H 93%29.91 inHg

10:00 AM

Mostly cloudy

73° 💧 None 💨 6 mph H 88%29.88 inHg

11:00 AM

Overcast

77° 💧 0.003 in 💨 8 mph H 78%29.88 inHg

12:00 PM

Light rain

78° 💧 0.005 in 💨 8 mph H 74%29.88 inHg

1:00 PM

Light rain

79° 💧 0.005 in 💨 8 mph H 72%29.88 inHg

2:00 PM

Mostly cloudy

78° 💧 0.002 in 💨 7 mph H 72%29.85 inHg

3:00 PM

Overcast

80° 💧 0.000 in 💨 7 mph H 67%29.85 inHg

4:00 PM

Overcast

78° 💧 None 💨 5 mph H 74%29.83 inHg

5:00 PM

Overcast

78° 💧 None 💨 4 mph H 72%29.83 inHg

6:00 PM

Overcast

77° 💧 None 💨 3 mph H 81%29.83 inHg

7:00 PM

Overcast

75° 💧 0.000 in 💨 2 mph H 83%29.83 inHg

8:00 PM

Overcast night

73° 💧 0.000 in 💨 2 mph H 85%29.83 inHg

9:00 PM

Light rain

72° 💧 0.005 in 💨 3 mph H 87%29.85 inHg

10:00 PM

Overcast night

71° 💧 0.000 in 💨 3 mph H 84%29.85 inHg

11:00 PM

Mostly cloudy night

71° 💧 None 💨 6 mph H 81%29.88 inHg

Friday

12:00 AM

Mostly cloudy night

68° 💧 None 💨 6 mph H 86%29.88 inHg

1:00 AM

Mostly cloudy night

67° 💧 None 💨 7 mph H 88%29.88 inHg

2:00 AM

Overcast night

66° 💧 None 💨 7 mph H 83%29.88 inHg

3:00 AM

Mostly cloudy night

66° 💧 None 💨 7 mph H 74%29.88 inHg

4:00 AM

Mostly cloudy night

65° 💧 None 💨 7 mph H 72%29.91 inHg

5:00 AM

Mostly cloudy night

63° 💧 None 💨 7 mph H 76%29.91 inHg

6:00 AM

Mostly clear night

61° 💧 None 💨 7 mph H 79%29.94 inHg

7:00 AM

Partly cloudy

60° 💧 None 💨 7 mph H 83%29.97 inHg

8:00 AM

Mostly sunny

61° 💧 None 💨 6 mph H 79%29.97 inHg

9:00 AM

Mostly sunny

63° 💧 None 💨 7 mph H 71%30.00 inHg

10:00 AM

Sunny

66° 💧 None 💨 8 mph H 64%30.00 inHg

11:00 AM

Sunny

68° 💧 None 💨 8 mph H 57%30.00 inHg

12:00 PM

Sunny

71° 💧 None 💨 7 mph H 51%30.00 inHg

1:00 PM

Sunny

72° 💧 None 💨 7 mph H 47%29.97 inHg

2:00 PM

Sunny

73° 💧 None 💨 7 mph H 44%29.97 inHg

3:00 PM

Sunny

74° 💧 None 💨 7 mph H 43%29.97 inHg

4:00 PM

Sunny

74° 💧 None 💨 6 mph H 45%29.94 inHg

5:00 PM

Sunny

73° 💧 None 💨 6 mph H 48%29.94 inHg

6:00 PM

Sunny

71° 💧 None 💨 5 mph H 58%29.97 inHg

7:00 PM

Sunny

66° 💧 None 💨 4 mph H 70%29.97 inHg

8:00 PM

Clear night

64° 💧 None 💨 4 mph H 73%30.00 inHg

Saturday

5:00 AM

Mostly clear night

55° 💧 None 💨 3 mph H 92%30.09 inHg

8:00 AM

Mostly cloudy

61° 💧 None 💨 4 mph H 81%30.12 inHg

11:00 AM

Overcast

73° 💧 None 💨 5 mph H 55%30.12 inHg

2:00 PM

Overcast

80° 💧 None 💨 7 mph H 49%30.06 inHg

5:00 PM

Overcast

76° 💧 None 💨 8 mph H 62%30.00 inHg

8:00 PM

Overcast night

72° 💧 None 💨 9 mph H 70%30.03 inHg

11:00 PM

Light rain

68° 💧 None 💨 9 mph H 80%30.06 inHg

Sunday

2:00 AM

Light rain

66° 💧 None 💨 7 mph H 91%30.03 inHg

5:00 AM

Light rain

67° 💧 None 💨 4 mph H 97%30.00 inHg

8:00 AM

Moderate rain

68° 💧 None 💨 5 mph H 99%30.00 inHg

11:00 AM

Overcast

73° 💧 None 💨 6 mph H 88%30.00 inHg

2:00 PM

Light rain

80° 💧 None 💨 7 mph H 71%29.94 inHg

5:00 PM

Mostly sunny

82° 💧 None 💨 6 mph H 60%29.91 inHg

8:00 PM

Mostly clear night

74° 💧 None 💨 2 mph H 80%29.97 inHg

11:00 PM

Partly cloudy night

70° 💧 None 💨 8 mph H 87%30.03 inHg

Monday

2:00 AM

Mostly clear night

64° 💧 None 💨 6 mph H 75%30.06 inHg

5:00 AM

Partly cloudy night

59° 💧 None 💨 4 mph H 79%30.06 inHg

8:00 AM

Mostly cloudy

61° 💧 None 💨 6 mph H 79%30.15 inHg

11:00 AM

Mostly sunny

71° 💧 None 💨 3 mph H 58%30.15 inHg

2:00 PM

Mostly sunny

78° 💧 None 💨 3 mph H 44%30.12 inHg

5:00 PM

Mostly cloudy

79° 💧 None 💨 1 mph H 43%30.09 inHg

8:00 PM

Mostly clear night

69° 💧 None 💨 2 mph H 81%30.12 inHg

11:00 PM

Partly cloudy night

66° 💧 None 💨 3 mph H 81%30.15 inHg

Tuesday

2:00 AM

Clear night

65° 💧 None 💨 6 mph H 82%30.15 inHg

8:00 AM

Mostly sunny

70° 💧 None 💨 6 mph H 98%30.12 inHg

2:00 PM

Overcast

70° 💧 None 💨 7 mph H 93%30.15 inHg

8:00 PM

Mostly clear night

84° 💧 None 💨 10 mph H 52%30.09 inHg

Wednesday

2:00 AM

Clear night

77° 💧 None 💨 9 mph H 71%30.06 inHg

8:00 AM

Mostly sunny

72° 💧 None 💨 7 mph H 98%30.09 inHg

2:00 PM

Partly cloudy

71° 💧 None 💨 7 mph H 90%30.15 inHg

8:00 PM

Overcast night

71° 💧 None 💨 9 mph H 69%30.21 inHg

Thursday

2:00 AM

Overcast night

66° 💧 None 💨 6 mph H 95%30.21 inHg

8:00 AM

Overcast

63° 💧 None 💨 6 mph H 98%30.24 inHg

2:00 PM

Overcast

61° 💧 None 💨 8 mph H 74%30.27 inHg

8:00 PM

Mostly cloudy night

69° 💧 None 💨 6 mph H 57%30.24 inHg

Friday

2:00 AM

Partly cloudy night

63° 💧 None 💨 5 mph H 80%30.21 inHg

8:00 AM

Overcast

61° 💧 None 💨 3 mph H 87%30.15 inHg

2:00 PM

Overcast

64° 💧 None 💨 4 mph H 89%30.09 inHg

8:00 PM

Mostly clear night

72° 💧 None 💨 9 mph H 77%29.94 inHg

Saturday

2:00 AM

Mostly clear night

72° 💧 None 💨 7 mph H 79%29.85 inHg

8:00 AM

Sunny

65° 💧 None 💨 11 mph H 85%29.88 inHg

2:00 PM

Sunny

60° 💧 None 💨 10 mph H 75%29.94 inHg

8:00 PM

Partly cloudy night

68° 💧 None 💨 9 mph H 40%29.94 inHg

Sunday

2:00 AM

Mostly clear night

60° 💧 None 💨 6 mph H 61%29.94 inHg

8:00 AM

Mostly cloudy

56° 💧 None 💨 5 mph H 65%29.97 inHg

2:00 PM

Overcast

57° 💧 None 💨 2 mph H 62%30.00 inHg

8:00 PM

Overcast night

66° 💧 None 💨 7 mph H 51%29.91 inHg

Monday

2:00 AM

Mostly cloudy night

64° 💧 None 💨 7 mph H 80%29.85 inHg

8:00 AM

Mostly cloudy

66° 💧 None 💨 7 mph H 97%29.83 inHg

2:00 PM

Partly cloudy

70° 💧 None 💨 4 mph H 94%29.85 inHg

8:00 PM

Light rain

80° 💧 None 💨 6 mph H 69%29.88 inHg

Tuesday

2:00 AM

Mostly cloudy night

71° 💧 None 💨 5 mph H 92%29.97 inHg

8:00 AM

Mostly cloudy

63° 💧 None 💨 6 mph H 95%30.06 inHg

2:00 PM

Overcast

63° 💧 None 💨 5 mph H 79%30.09 inHg

8:00 PM

Light rain

64° 💧 None 💨 3 mph H 91%30.12 inHg

Wednesday

2:00 AM

Overcast night

62° 💧 None 💨 3 mph H 99%30.12 inHg

8:00 AM

Mostly sunny

57° 💧 None 💨 6 mph H 98%30.12 inHg

2:00 PM

Sunny

57° 💧 None 💨 6 mph H 98%30.15 inHg

8:00 PM

Mostly cloudy night

73° 💧 None 💨 3 mph H 53%30.12 inHg

Thursday

2:00 AM

Clear night

64° 💧 None 💨 0 mph H 68%30.09 inHg

In Hopatcong and, more broadly, across the state of New Jersey: The rest of the day will see a mix of sun and clouds, with temperatures ranging from the low 70s to the low 80s. Winds will be moderate, coming from the southwest at around 14 mph, with gusts reaching up to 34 mph. No precipitation is expected, so outdoor plans should be comfortable and dry. The weather will remain generally mild to warm, providing a pleasant afternoon with a mix of sunshine and clouds. Keep in mind the gusty winds if you're out and about, especially during outdoor activities. Overall, it looks like a nice day to enjoy the outdoors without any weather-related concerns.

15-Day Weather Outlook for Hopatcong

TomorrowTomorrow

Thunderstorms 80°/66° 💧 None 💨 14 mph

Friday, Sep 11Fri Sep 11

Overcast 74°/60° 💧 None 💨 8 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 80°/55° 💧 0.137 in 💨 8 mph

Sunday, Sep 13Sun Sep 13

Moderate rain 82°/66° 💧 0.347 in 💨 9 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 79°/59° 💧 0.001 in 💨 8 mph

Tuesday, Sep 15Tue Sep 15

Overcast 70°/65° 💧 0.072 in 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 84°/71° 💧 0.004 in 💨 10 mph

Thursday, Sep 17Thu Sep 17

Overcast 71°/61° 💧 0.136 in 💨 9 mph

Friday, Sep 18Fri Sep 18

Overcast 69°/61° 💧 0.004 in 💨 6 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 72°/60° 💧 0.027 in 💨 11 mph

Sunday, Sep 20Sun Sep 20

Partly cloudy 68°/56° 💧 None 💨 9 mph

Monday, Sep 21Mon Sep 21

Overcast 70°/64° 💧 0.008 in 💨 7 mph

Tuesday, Sep 22Tue Sep 22

Light rain 80°/63° 💧 0.073 in 💨 6 mph

Wednesday, Sep 23Wed Sep 23

Light rain 64°/57° 💧 0.175 in 💨 6 mph

Thursday, Sep 24Thu Sep 24

Mostly cloudy 73°/64° 💧 0.001 in 💨 3 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Hopatcong

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Hopatcong

Hourly forecast · Updated every 2 hours

Moderate

Nearest forecast value 12:00 PM

PM2.5 Fine particles Good 8,8µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 11,2µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Moderate 100,3µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 3,0µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in Hopatcong

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,1High 😐Moderate

Tomorrow UV 5,0Moderate 🙂Fair

Friday UV 6,5High 😐Moderate

Saturday UV 6,5High 😐Moderate

Sunday UV 5,0Moderate 🙂Fair

Monday UV 7,0High —Unavailable

Tuesday UV 7,0High —Unavailable

Hourly UV index today

12:00 PMUV 6,4 1:00 PMUV 7,1 2:00 PMUV 6,5 3:00 PMUV 4,9 4:00 PMUV 1,6 5:00 PMUV 1,4 6:00 PMUV 0,4 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Hopatcong

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · HOPATCONG, NEW JERSEY

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 10:00 PM–11:00 PM.

86/100Best-hour score

BEST TIME TONIGHT 10:00 PM–11:00 PM Astronomical darkness: 8:52 PM–5:00 AM

☁ Cloud cover 20% Real hourly forecast for the best viewing hour.

☾ Moonlight 4% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 17° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min34%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Hopatcong were last refreshed today at 11:39 AM. The current forecast period extends through 11/09/2026 at 9:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.