Harmon Lake

Harmon Lake

Mandan, Morton County, ND
0mi²
ft
Directions
Lake Information

Nestled in the picturesque landscapes of Morton County, North Dakota, Harmon Lake emerges as a pristine aquatic haven, covering 136 acres and offering a diverse range of sport fish. With an average depth of 16.1 feet and a maximum depth reaching an impressive 46.6 feet, this freshwater gem is a beacon for anglers and outdoor enthusiasts alike. Conveniently located near Mandan, Harmon Lake has become a regional draw, enticing visitors with its abundance of Largemouth Bass, Bluegill, and Crappie, creating an ideal destination for a multifaceted angling adventure. As anglers cast their lines into the clear waters of Harmon Lake, they are met with the excitement of pursuing the lake's abundant Largemouth Bass, Bluegill, and Crappie. The lake's strategic location near Mandan positions it as a convenient escape for locals and a sought-after retreat for those seeking the perfect blend of recreational enjoyment and natural serenity. Whether you're an experienced angler or a novice eager to explore the diverse underwater world, Harmon Lake invites you to immerse yourself in the thrill of catching these prized fish against the backdrop of North Dakota's tranquil landscapes. The underwater tapestry of Harmon Lake extends beyond its shores, offering an ecosystem that supports a variety of sport fish. While Largemouth Bass, Bluegill, and Crappie take center stage, the lake also hosts Rainbow Trout, Channel Catfish, and Northern Pike in lower numbers. This diversity ensures that every fishing expedition holds the potential for a varied and fulfilling catch, catering to the preferences and skill levels of anglers seeking a dynamic outdoor experience. Surrounded by the natural beauty of Morton County, Harmon Lake is more than a fishing destination; it's a recreational retreat where outdoor enthusiasts can engage with nature in various ways. The lake's 4.8 miles of shoreline provide ample space for lakeside activities, inviting visitors to explore the tranquil surroundings and create lasting memories. Whether you choose to cast your line from the shore, navigate the lake's waters by boat, or simply revel in the serenity of the landscape, Harmon Lake promises a harmonious blend of adventure and relaxation. In the heart of North Dakota, Harmon Lake stands as a testament to the state's commitment to preserving its natural treasures. Whether you come for the thrill of angling, the joy of lakeside exploration, or simply to find solace by the water's edge, Harmon Lake invites you to discover the diverse Sport Fish offerings that make it a cherished destination in the region. Come, explore the abundance of Largemouth Bass, Bluegill, and Crappie, and immerse yourself in the multifaceted beauty of Harmon Lake near Mandan.

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Current Conditions

94°F°
Feels like 93°F°
MostlyCloudy
Today's High
88°F°
Today's Low
64°F°

Water Temperature

60°F
Updated: (May 11)
Sign in to contribute temps.

Current water temperature for Harmon Lake is 60°F.

Current Snapshot

Wind14 mph SSE (Gust 20 mph)
Pressure
29.35 inHg
Visibility42 mi
Humidity24%
Cloud Cover81%

Forecast: Tuesday, May 13

Day 1 of 9

Hourly Insights

7 AM
64°F°
10 AM
79°F°
1 PM
85°F°
4 PM
87°F°

Temperature

High
88°F°
Low
64°F°

Precipitation

Chance0%
Amount0.00"
Typeclear

Wind

10mph
Avg Speed
Gusts up to
32mph
CalmModerateStrong
Max Speed17 mph

Sun, Moon & UV

Sunrise11:10 AM
Sunset2:10 AM
Moon PhasewaningGibbous
Max UV Index6 (High)

Solunar Fishing Forecast

Action Rating
3/5

Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)

Major Times (Best)

6:32 AM - 9:02 AM

5:26 PM - 7:56 PM

Minor Times (Good)

3:26 AM - 4:56 AM

10:40 AM - 12:10 PM

Outlook for Tuesday at Harmon Lake

Expect temperatures ranging from 64°F to 88°F. Skies look partly cloudy with little chance of precipitation. Winds will be averaging 10 mph, with potential gusts reaching up to 32 mph. The maximum UV index will be 6 (High), so plan sun protection accordingly. For anglers, today's fishing action is rated 3/5 (Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 6:32 AM and 5:26 PM, or try the minor windows near 3:26 AM and 10:40 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Harmon Lake.

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May 12th 2025

Lake Information

Elevation
N/A
Area
0 mi²
Coordinates
46.941, -100.964

Weather Forecast

Tuesday

88°F
64°F

Wednesday

76°F
59°F

Thursday

59°F
46°F

Friday

52°F
44°F

Saturday

56°F
41°F

Sunday

54°F
34°F

Monday

58°F
39°F

Tuesday

54°F
45°F

Wednesday

58°F
46°F
Tuesday - 5/13/2025
88°F
64°F
12am
75°F
60°F
29.34 hPa
12 mph
SSE
G: 23 mph
2am
71°F
60°F
29.34 hPa
11 mph
SSE
G: 21 mph
4am
67°F
60°F
29.32 hPa
11 mph
SSE
G: 19 mph
6am
64°F
60°F
29.35 hPa
8 mph
SSE
G: 16 mph
8am
69°F
60°F
29.36 hPa
13 mph
SSE
G: 24 mph
10am
79°F
60°F
29.37 hPa
16 mph
SSW
G: 23 mph
12pm
83°F
60°F
29.38 hPa
10 mph
SW
G: 14 mph
2pm
86°F
60°F
29.38 hPa
8 mph
WSW
G: 12 mph
4pm
87°F
60°F
29.40 hPa
6 mph
WSW
G: 12 mph
6pm
88°F
60°F
29.39 hPa
5 mph
WNW
G: 10 mph
8pm
84°F
60°F
29.40 hPa
7 mph
NNW
G: 12 mph
10pm
77°F
60°F
29.44 hPa
12 mph
N
G: 22 mph

Water Temperature History

Trends for Harmon Lake

Current Temp

Sign in to view

Latest recorded surface temperature.

Lowest in Period

38°F

On Apr 13

Coldest point in the Last 12 Months.

Average in Period

58°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 (83°F).
  • Coolest avg: April (42°F).
  • Rapid warming often occurs: April → May (+19°F).
  • Sharpest cooling trend: September → October (-16°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm08162432

Wind Direction

155°

Pressure

994 mb

Cloud Cover

13%

Visibility

30 miles

Daily Pressure Forecast

TueWedThuFriSatSunMonTueWed0.008.8617.7226.5835.44
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Frequently Asked Questions About Harmon Lake

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