McCanaughy Lake

McCanaughy Lake

Lewellen, Keith County, NE
47mi²
ft
Directions
Lake Information

Nearly everything about Lake McConaughy is big. At 30,000 surface acres it is Nebraska’s largest reservoir, its dam is among the largest of its type in the world and its fish grow to trophy proportions, accounting for several state records. Even its nickname, “Big Mac,” reflects its size. Lake Mac’s white sand beaches and clear waters are a favorite with campers, boaters, wind surfers, swimmers, water skiers, picnickers, scuba divers, hunters, anglers and others seeking outdoor fun. Fishing has long been a favorite activity at Lake McConaughy, with its cool, clear, deep waters. Game fish species include walleye, channel catfish, Northern pike, wiper, smallmouth and white bass, among others.

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Current Conditions

59°F°
Feels like 56°F°
MostlyClear
Today's High
74°F°
Today's Low
33°F°

Water Temperature

48°F
Updated: (May 2)
Sign in to contribute temps.

Current water temperature for McCanaughy Lake is 48°F.

Current Snapshot

Wind9 mph NNE (Gust 16 mph)
Pressure
30.04 inHg
Visibility31 mi
Humidity33%
Cloud Cover18%

Forecast: Saturday, May 3

Day 1 of 9

Hourly Insights

7 AM
39°F°
10 AM
60°F°
1 PM
71°F°
4 PM
74°F°

Temperature

High
74°F°
Low
33°F°

Precipitation

Chance0%
Amount0.00"
Typeclear

Wind

7mph
Avg Speed
Gusts up to
22mph
CalmModerateStrong
Max Speed13 mph

Sun, Moon & UV

Sunrise11:41 AM
Sunset1:46 AM
Moon PhasewaxingCrescent
Max UV Index9 (Very High)

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)

12:10 AM - 2:40 AM

10:07 AM - 12:37 PM

Minor Times (Good)

4:26 PM - 5:56 PM

7:09 AM - 8:39 AM

Outlook for Saturday at McCanaughy Lake

Expect temperatures ranging from 33°F to 74°F. Skies look mostly clear with little chance of precipitation. Winds will be averaging 7 mph, with potential gusts reaching up to 22 mph. The maximum UV index will be 9 (Very High), 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 12:10 AM and 10:07 AM, or try the minor windows near 4:26 PM and 7:09 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for McCanaughy Lake.

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May 3rd 2025

Lake Information

Elevation
N/A
Area
47 mi²
Coordinates
41.208, -101.673

Weather Forecast

Saturday

74°F
33°F

Sunday

72°F
45°F

Monday

71°F
48°F

Tuesday

66°F
50°F

Wednesday

65°F
49°F

Thursday

69°F
44°F

Friday

75°F
46°F

Saturday

75°F
51°F

Sunday

78°F
54°F
Saturday - 5/3/2025
74°F
33°F
12am
38°F
48°F
30.07 hPa
3 mph
S
G: 7 mph
2am
38°F
48°F
30.07 hPa
3 mph
SW
G: 10 mph
4am
34°F
48°F
30.06 hPa
2 mph
SW
G: 3 mph
6am
34°F
48°F
30.05 hPa
1 mph
S
G: 3 mph
8am
46°F
48°F
30.02 hPa
4 mph
SSW
G: 12 mph
10am
60°F
48°F
29.97 hPa
7 mph
SSE
G: 13 mph
12pm
68°F
48°F
29.91 hPa
10 mph
S
G: 14 mph
2pm
73°F
48°F
29.88 hPa
9 mph
S
G: 12 mph
4pm
74°F
48°F
29.85 hPa
10 mph
SSE
G: 13 mph
6pm
72°F
48°F
29.84 hPa
11 mph
SE
G: 14 mph
8pm
64°F
48°F
29.83 hPa
12 mph
SE
G: 19 mph
10pm
57°F
48°F
29.88 hPa
13 mph
SE
G: 22 mph

Water Temperature History

Trends for McCanaughy Lake

Current Temp

Sign in to view

Latest recorded surface temperature.

Lowest in Period

34°F

On Jan 22

Coldest point in the Last 12 Months.

Average in Period

50°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 (77°F).
  • Coolest avg: February (34°F).
  • Rapid warming often occurs: May → June (+16°F).
  • Sharpest cooling trend: September → October (-12°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm06121824

Wind Direction

185°

Pressure

1018 mb

Cloud Cover

18%

Visibility

17 miles

Daily Pressure Forecast

SatSunMonTueWedThuFriSatSun0.008.8617.7226.5835.44
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Frequently Asked Questions About McCanaughy Lake

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