Lake Hopatcong

Lake Hopatcong

Hopatcong, Morris County, NJ
4mi²
285.00ft
Directions
Lake Information

Lake Hopatcong is the largest freshwater body of water in New Jersey, located in Morris County.

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Current Conditions

71°F°
Feels like 73°F°
Cloudy
Today's High
67°F°
Today's Low
59°F°

Water Temperature

52°F
Updated: (May 3)
Sign in to contribute temps.

Current water temperature for Lake Hopatcong is 52°F.

Current Snapshot

Wind1 mph SSE (Gust 3 mph)
Pressure
29.85 inHg
Visibility15 mi
Humidity70%
Cloud Cover100%

Forecast: Sunday, May 4

Day 1 of 9

Hourly Insights

7 AM
61°F°
10 AM
63°F°
22%
1 PM
66°F°
55%
4 PM
64°F°
66%
7 PM
63°F°
60%

Temperature

High
67°F°
Low
59°F°

Precipitation

Chance94%
Amount0.61"
Typerain

Wind

4mph
Avg Speed
Gusts up to
18mph
CalmModerateStrong
Max Speed8 mph

Sun, Moon & UV

Sunrise9:52 AM
Sunset11:58 PM
Moon PhasefirstQuarter
Max UV Index4 (Moderate)

Solunar Fishing Forecast

Action Rating
2/5

Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)

Major Times (Best)

11:07 PM - 1:37 AM

12:51 PM - 3:21 PM

Minor Times (Good)

3:44 PM - 5:14 PM

5:52 AM - 7:22 AM

Outlook for Sunday at Lake Hopatcong

Expect temperatures ranging from 59°F to 67°F. There's a 94% chance of rain, potentially bringing around 0.61" rain. Winds will be averaging 4 mph, with potential gusts reaching up to 18 mph. The maximum UV index will be 4 (Moderate), so plan sun protection accordingly. For anglers, today's fishing action is rated 2/5 (Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 11:07 PM and 12:51 PM, or try the minor windows near 3:44 PM and 5:52 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Lake Hopatcong.

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May 4th 2025

Lake Information

Elevation
285 ft
Area
4 mi²
Coordinates
40.942, -74.624

Weather Forecast

Sunday

67°F
59°F

Monday

64°F
56°F

Tuesday

67°F
56°F

Wednesday

68°F
54°F

Thursday

65°F
49°F

Friday

60°F
43°F

Saturday

70°F
44°F

Sunday

71°F
49°F

Monday

73°F
49°F
Sunday - 5/4/2025
67°F
59°F
12am
63°F
52°F
29.89 hPa
1 mph
SSE
G: 4 mph
2am
62°F
52°F
29.89 hPa
2 mph
N
G: 5 mph
4am
61°F
52°F
29.87 hPa
1 mph
SSE
G: 1 mph
6am
61°F
52°F
29.87 hPa
1 mph
ESE
G: 5 mph
8am
62°F
52°F
29.89 hPa
3 mph
SE
G: 8 mph
10am
63°F
52°F
29.89 hPa
3 mph
SSE
G: 13 mph
12pm
67°F
52°F
29.89 hPa
7 mph
SSE
G: 16 mph
2pm
65°F
52°F
29.88 hPa
7 mph
SE
G: 13 mph
4pm
64°F
52°F
29.89 hPa
8 mph
SE
G: 18 mph
6pm
64°F
52°F
29.90 hPa
7 mph
S
G: 17 mph
8pm
62°F
52°F
29.92 hPa
5 mph
SE
G: 13 mph
10pm
61°F
52°F
29.96 hPa
5 mph
SE
G: 13 mph

Water Temperature History

Trends for Lake Hopatcong

Current Temp

Sign in to view

Latest recorded surface temperature.

Lowest in Period

33°F

On Jan 12

Coldest point in the Last 12 Months.

Average in Period

49°F

Typical temp during the Last 12 Months.

Temperature Trend: Last 12 Months

Surface temperature over the selected period.

Key Observations (Last 12 Months)

  • Warmest avg: July (69°F).
  • Coolest avg: February (33°F).
  • Rapid warming often occurs: June → July (+14°F).
  • Sharpest cooling trend: November → December (-14°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm05101520

Wind Direction

164°

Pressure

1012 mb

Cloud Cover

97%

Visibility

8 miles

Daily Pressure Forecast

SunMonTueWedThuFriSatSunMon0.008.8617.7226.5835.44
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Frequently Asked Questions About Lake Hopatcong

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